Electronic Circuit: DIY Motion Sensor Light using LED Bulb and PIR Sensor by Narasimha Rao

8051 Circuit. - This is one of implementation PIR sensor to build motion sernsor light. It is only need small component completed to build motion sensor light in this time.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Circuit: DIY Motion Sensor Light using LED Bulb and PIR Sensor (Source: Circuitstoday.com)

Component Parts

• AC/DC Adapter modula
• Capacitors
• Resistors
• PIR Sensor
• Transistor
• LED panel

Description

The electronic circuit design like in Figure 1 above show you DIY Motion Sensor Light using LED Bulb and PIR Sensor that written by Narasimha Rao. 

According Circuitstoday blog mentioned that this project is a DIY Smart Light Adapter – which aims to build a smart light bulb based on your ordinary light bulb (which can be a CFL or an LED lamp) and a PIR sensor. The final output will be a light bulb that turns ON based on motion around a particular area within the range of PIR sensor attached to the ordinary light bulb. So lets begin!

If you are not willing to re-wire your home for smart lighting or not interested in spending a huge amount of money for the smart lighting system, then this DIY project is for you.

This simple adapter converts normal bulb into a smart Bulb, with the help of a PIR sensor. The mounting of the sensor is done in such a way that the angular position of the sensor can be adjusted, so that, the original position of the batten holder does not affect the sensing of human passage. This is achieved by using a 3.5 mm stereo jack and its socket. However, this type of mounting is up to your will and wish. It’s possible to wire directly without any mounting.

Read More

Electronic Circuits: Simple Temperature to Voltage Converter using NTC and CA3130

8051 Circuit. - This is one of implementation NTC and CA3130 IC to build converter simple temperature to voltage. It is only need small component completed to build converter in this time.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Simple Temperature to Voltage Converter Circuit using NTC and CA3130 (Source: Eleccircuits)

Component Parts

• Zener Diode
• Capacitors
• Resistors
• NTC
• Variable resistors
• CA3130 IC

Description

The electronic circuit design like in Figure 1 above show you Simple Temperature to Voltage Converter Circuit using NTC and CA3130. 

According Eleccircuits blog mentioned that this is a simple temperature to voltage converter circuit or an Electronic thermometer circuit there. Which will operate in a temperature range of 0 to 24 degrees Celsius (32 to 75 degrees Fahrenheit). The output rate of 500mV per degree Celsius. Which can be read by a normal voltmeter.

To make it easier to find devices thus Temperature sensors of this circuit. So use a coefficient thermistor relatively constant and not linear. However, the temperature range of 0-24 degrees Celsius. This is enough to use a thermometer kind of normal.

The IC1 is op-amp as the difference amplifier. There are inputs as bridge circuit include with R1 to R4, by at R1,R2,R3 and P1 is a constant arms of the bridge. And R4 is an arm of Bridget’s changing values. The voltage across between R1 and R2 have about 3.4V at zero degree Celsius. The P1 is calibrated to the output of op-amp is 0V.

There are conditions of the NTC, the NTC resistance at higher temperature is decreased, the voltage drop across NTC reduced. Making the output of the Op amp with higher voltage. IF the output is not 0.5V degrees Celsius, Then increase or decrease the R8 and R9 but to reduce or increase to equal the two.

Read More

Electronic Design: Inverter 12V to 220V 100W Circuit by Transistor

Radio Circuit. - This is one of implementation of transistor to build power inverter system. It is only need small component completed to build this electronic circuit that basically component.

The electronic design circuit of Inverter 12V to 220V 100W Circuit by Transistor is look like in Figure 1 below. Other component used like resistors, transformer, capacitors, and diode.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1.  Inverter 12V to 220V 100W Circuit by Transistor (Source: Eleccircuits.com)

Component Parts

• Q1-Q4______BC557___45V 100mA PNP Transistor
• Q5,Q6______BD139___80V 1.5A NPN Transistor
• Q7,Q8______2N3055___100V, 15A, 115W, >2,5MHz NPN transistor
• D1,D2,D3,D4_____1N4148______75V 150mA Diodes
• D5,D6_______1N4007 __1000V 1A Diodes
• R1,R4,R6,R7_________10K___1/2W Resistors tolerance: 5%
• R2,R3___________150K______1/2W Resistors tolerance: 5%
• R5,R6___________ 47K______1/2W Resistors tolerance: 5%
• R9,R12__________ 220 ohms 1/2W Resistors tolerance: 5%
• R10,R13_________ 560 ohms 1/2W Resistors tolerance: 5%
• R11, R14________ 100K ____1/2W Resistors tolerance: 5%
• R15, R16________ 10 ohms__10W Resistors tolerance: 5%
• R17, R18________ 150 ohms_1/2W Resistors tolerance: 5%
• C1,C2___________0.047uF 50V_____Ceramic capacitors
• C3,C4__________0.01uF 50V____Ceramic capacitors
• C5______________1uF 50V_____ Ceramic capacitors
• C6_____________0.1uF 250V____ Ceramic capacitors
• C7_____________0.1uF 50V_____ Ceramic capacitors
• C8____________220uF 25V_______ Electrolytic capacitors
• T1___230V AC primary to 12V-0-12V,2-8A secondary transformer.

Description

The electronic circuit design like in Figure 1 above show you power inverter circuit using transistor. Other component need also that can supply with low voltage DC +12V and ground source to charge this transistors and all system component from power supply built. With this electronic design circuit you can produce 220V from 12V that useful now.

According Eleccircuits blog mentioned thathis circuit is 100 watt power inverter using power transistor 2N3055. It is designed for you that need to use appliances at outdoor or no electrical places. Someone use it in car or the high mountain etc.

The maximum output power of this circuit about 100 watts, it is suitable for a normal lighting (all home lamps), also used for radio, mini TV, stereo or someone use it for.

Let’s look at to both transistors Q1,Q2 will be connected together as the astable multivibrator form. It will generate the output frequency about 100 Hz at the collector lead of Q2. Then this signal will sent to the two frequency divider makes the frequency is reduced down about 50Hz

Cause we don’t design the circuit to directly work at 50 Hz. Because the generating the steady low frequency is very hard.

The output from divider circuit is sent to base of Q5,Q6. To increase current up to drive the output transistors Q7,Q8, then drive the transformer, finally to supply load.

Read More

Electronic Design: Touch ON and OFF Switch Circuit using NE555 IC

Radio Circuit. - This is one of implementation of NE555 IC to build switching system. It is only need small component completed to build this electronic circuit that basically component.

The electronic design circuit of Touch ON and OFF Switch Circuit using NE555 IC is look like in Figure 1 below. Other component used like resistors, capacitors, transistor, sensor, etc.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Touch ON and OFF Switch Circuit using NE555 IC (Source: Electronichub.org)

Component Parts

• 1 x 555 Timer IC
• 1 x 3.3 MΩ Resistor (1/4 Watt)
• 1 x 1 MΩ Resistor (1/4 Watt)
• 1 x Bulb with holder (regular or CFL)
• 1 x 5V Relay Module (if relay module is not available, then you need the following components)
• 1 x 5V Relay
• 1 x 2N2222 NPN Transistor
• 1 x 1N4007 PN Junction Diode
• 1 x 1 KΩ Resistor (1/4 Watt)

Description

The electronic circuit design like in Figure 1 above show you touch ON/OFF switch using 555 IC. Other component need also that can supply with low voltage DC +12V and ground source to charge this IC and all system component from power supply built. With this electronic design circuit you can produce touch on/off switch that useful now.

According Electronichub blog mentioned that the design of the Touch ON and OFF Switch circuit is very simple. First, the GND, VCC and RST pins of the 555 i.e. pins 1, 8 and 4 are connected to GND and 5V respectively. Pin 2 is pulled HIGH using a 3.3 MΩ Resistor and Pin 6 is pulled LOW using a 1 MΩ Resistor.

Two touch plates are connected to pins 2 and 6 as shown in the circuit diagram. In case of the touch to ON plate, one end is connected to pin 2 and other end is connected to GND. Similarly, one end of the touch to OFF plate is connected to +5V and the other end is connected to Pin 6.

The main principle behind the project lies in the basic functionality of the pins of 555 Timer. We know that 555 Timer has 8 pins namely GND (1), Trigger (2), Output (3), Reset (4), Control Voltage (5), Threshold (6), Discharge (7) and VCC (8).

In this, Pins 2 and 6 are used in this project. Now, we see the basic working of these pins. When Pin 6 i.e. the Threshold pin is held LOW, and if Pin 2 i.e. the Trigger Pin is made LOW, the output of the 555 Timer IC will be HIGH and it stays there. This condition can be used to turn ON the appliance.

Now consider Pin 2 is pulled HIGH and if Pin 6 is made HIGH, the output of the 555 Timer IC will be LOW and it stays there. This condition can be used in our project to turn OFF the load or device.

Read More

Electronic Design: White / LF Noise Generator Circuit using 741 IC

Radio Circuit. - This is one of implementation of Op-Amp IC 741 to build radio generator or oscillator system. It is only need small component completed to build this electronic circuit that basically component.

The electronic design circuit of White / LF Noise Generator using 741 IC is look like in Figure 1 below. Other component used like resistors, capacitors, and zener diode.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Circuit of White / LF Noise Generator using 741 IC (Source: Electronicprojects.org)

Component Parts

• R1 = 470 KΩ
• R2, R5, R8, R9 = 10 KΩ
• R3, R6, R10 = 100 KΩ
• R4 = 4.7 KΩ
• R7 = 1 MΩ
• C1 = 0.47 µF
• C2 = 100 µF/10v
• C3, C6 = 1 µF/16v
• C4 = 0.15 µF
• C5 = 0.015 µF
• C7 = 0.001 µF
• C8 = 100 µF/25V
• IC1, IC2 = 741
• ZD1 = 12V 400mW

Description

The electronic circuit design like in Figure 1 above show you generator circuit using Op-Amp 741 IC. Other component need also that can supply with low voltage DC +12V and ground source to charge this IC and all system component from power supply built. With this electronic design circuit you can produce White / LF noise generator that useful now.

According Electronicprojects blog mentioned that in every musician today is in need of a noise source, particularly those who practice with a group or use a synthesizer. The white noise generator gives an output to be fed to an amplifier. The white noise generated by the 12V zener diode is amplified 200 times along with the noise of the noisy 741 IC (IC1). The output is thus very noisy with plenty of white noise.

The output of IC1 is given to a low pass filter which cuts off high frequencies. Point A is connected to amplifier IC2. The feedback network of IC2 includes a 0.15 µF capacitor which reduces the gain at high frequencies.

The 0.001 µF capacitor at the output of IC2 also loads the output at high frequencies and reduce them. Thus the resultant output has a large amount of low frequency (LF) noise.

A small amount of white noise due to the IC itself is produced at the output, but it can be ignored. Point B is an artificial center point created for IC1 and IC2. Point C is connected to the capacitor which reduce the gain of IC2 at high frequencies..

Read More

Electronic Design: FM Transmitter Circuit Using CD4069 and Varicap Diode Without Coil

Radio Circuit. - This is one of implementation of varicap diode and CD4069 IC to build radio generator or oscillator system. It is only need small component completed to build this electronic circuit that basically component.

The electronic design circuit of FM Transmitter Circuit Using CD4069 and Varicap Diode Without Coil is look like in Figure 1 below. Other component used like resistors, capacitors, and Ceramic crystal filter 10.7 MHz.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. FM Transmitter Circuit Using CD4069 and Varicap Diode Without Coil (Source: Eleccircuits)

Component Parts

• R1_____________6.8K
• R2_____________10K
• R3_____________1K
• R4_____________1M
• R5_____________100K
• R6_____________1.5M
• Capacitors
• C1, C3__________0.1uF 50V Polyester capacitors
• C2_____________10uF 25V Electrolytic capacitors
• C4_____________100pF 50V Polyester capacitors
• C5_____________100uF 16V Electrolytic capacitors
• C6_____________22pF 50V polyester capacitors
• C7_____________0.001 uF 50V polyester capacitors
• Semiconductors
• IC1____________CD4069
• D1____________ Varicap diode
• Others
• Condenser Micro phone
• Ceramic crystal filter 10.7 MHz

Description

The electronic circuit design like in Figure 1 above show you radio transmitter oscillator circuit using varicap diode and CD4069. Other component need also that can supply with low voltage DC +9V and ground source to charge this IC and all system component from power supply built. With this electronic design circuit you can produce FM transmitter generator that useful now.

According Eleccircuits blog mentioned that in Figure 1 above is RF oscillator circuit which use a inverter IC1/2 and ceramic crystal filter 10.7 MHz to use drive IC1/4 – IC1/6 by through IC1/3.

When inverter in parallel form this impedance output is low thus they can drive directly an antenna.

When output of IC1/4 – IC1/6 are square wave which have much more internal harmonic. The harmonic number 9 of frequency 10.7 MHz (96.3 MHz) will take place at the center of the FM band.

The IC1/1 is audio amplifier which signal from the the micro phone will be amplified and will send to varicap diode. This signal causes the capacitance of the varicap diode changed and make also oscillator frequency changes. Thus its occurs modulation frequency.

Read More

Electronic Design: Monostable Latch Circuit using 555-Timer

555 Circuit. - This is one of implementation of 555 IC to build monostable latch. It is only need small component to build this electronic circuit that basically using 555 and other component.

The electronic design circuit of Monostable Latch using 555-Timer is look like in Figure 1 below. Other component used like LED, resistors, capacitors, and push-button switch.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: Monostable Latch Circuit using 555-Timer (Source: Circuitstoday.com)

Component Parts

• IC 555
• Resistors
• Capacitors
• Push-button switch
• Diode LED

Description

The electronic circuit design like in Figure 1 above show you monostable latch circuit using 555 Timer. Other component need also that can supply with low voltage DC +12V source to charge this IC and all system component. With this electronic design circuit you can produce monostable latch that useful now.

According Circuitstoday blog mentioned that using the charging and discharging phases of RC-Circuit as a continuous voltage signal, timing circuits can be designed. When the voltage at trigger input falls from Vcc to below 1/3 Vcc the LC (Lower Comparator) sets and this, in turn, sets the RS-Latch and hence, the output is set. The voltage across the capacitor is connected to the Non-Inverting terminal of the UC (Upper Comparator) and is compared with pre-set 2/3 Vcc at the inverting terminal of the Op-Amp. When the capacitor voltage tends to exceed 2/3 Vcc, the UC sets and this, in turn, resets the RS-Latch and hence, the output is reset.

Read More

Electronic Design: Audio Oscillator Circuit using ICL8038

Audio Circuit. - This is one of implementation of ICL8038 IC to build audio generator or oscillator system. It is only need small component to build this electronic circuit that basically using ICL8038 and other component.

The electronic design circuit of audio oscillator using ICL8038 is look like in Figure 1 below. Other component used like diode, resistors, capacitors, and variable resistor.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: Audio Oscillator Circuit using ICL8038 (Source: Circuitstoday)

Component Parts

• ICL8038
• Resistors
• Capacitors
• Variable Resistors
• Diode

Description

The electronic circuit design like in Figure 1 above show you audio oscillator circuit using ICL8038. Other component need also that can supply with low voltage DC +10V and - 10V source to charge this IC and all system component from power supply built. With this electronic design circuit you can produce audio generator with 3 waves that useful now.

According Circuitstoday blog mentioned thatICL8038 is a monolithic waveform generator IC that can produce sine, square and triangular waveforms with very little distortion. The frequency can be programmed from 0.001Hz to 300 KHz using external timing capacitor and resistor. Frequency modulation and sweeping can be attained by using an external voltage. Other features of the ICL8038 are high linearity, high level outputs, simultaneous sine, square, triangle wave outputs, low external parts count, high temperature stability etc.

The working of ICL8038 is as follows. The external timing capacitor (C2 in the circuit diagram) is charged and discharged using two internal current sources. The first current source is on all the time and second current is switched ON and OFF using a flip-flop. Suppose the second current source is OFF and the first current source is ON, then the capacitor C2 will be charged with a continuous current (i) and the voltage across C2 increases linearly with time. When the voltage reaches 2/3 supply voltage, controlling flip flop is triggered and the first current source is activated. This current source carries double the current (2i) making the capacitor C2 is discharged with a current i and the voltage across it drops linearly with time. When this voltage reaches 1/3 supply voltage, the flip flop is resetted to the initial condition and the cycle is repeated again.

Read More

Electronic Design: Bridge Power Audio Amplifier Circuit using LM380 IC

Audio Circuit. - This is one of implementation of LM380 IC to build bridge power amplifier for your audion sound system. It is only need small component to build this electronic circuit that basically using LM380 IC and other component.

The electronic design circuit of bridge power amplifier using 555 IC is look like in Figure 1 below. Other component used like resistors, capacitors, and variable resistor.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Bridge Power Audio Amplifier Circuit using LM380 IC (Source: www.elecrtonicsdesign.org)

Component Parts

• R1 =2 MΩ potentiometer
• R2 = 2.7 Ω
• R3 = 1 MΩ
• C1, C2, C3 = 0.1 µF
• C4 = 51 pF
• IC1, IC­2 = LM380 audio power amplifier
• 8Ω 1-W speaker

Description

The electronic circuit design like in Figure 1 above show you bridge power audio amplifier using LM380 IC. Other component need also that can supply with low voltage DC 15V source to charge this IC and all system component from power supply built. With this electronic design circuit you can produce power audio amplifier that useful now.

According ElectronicsProject blog mentioned that here is simple circuit of bridge power audio amplifier used in application requiring more power than is provided by the single LM380 amplifier, the two LM380s can be used in the bridge configuration shown in figure 1. In this arrangement (bridge power audio amplifier) the maximum output voltage swing will be twice that of a single LM380 amplifier; therefore, the power delivered to the load by bridge power audio amplifier will be four times as much. For improved performance, potentiometer R3 should be used to balance the output offset voltage of the LM380s. Here R2 C3 for stability with high-current load.

Read More

Electronic Design: Microprocessor Circuit Based Security System

Security Circuit. - This is one of implementation of microcontroller to buld security system that very useful advance world security system is in high end so the security breakers are. The main microcontroller used in this circuit is 8051 that very popular in electronic design.

The electronic design circuit of microcontroller based on security system is look like in Figure 1 below. Other component used like resistors, capacitors, transformer, relay, diodes, transistor, NE555 IC and also other component that you can look in components part below.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: Microprocessor Circuit Based Security System (source: Electronicsproject.org)

Component Parts

• R1, R2 = 5.6 KΩ
• R3, R16, R18 – R22, R25 = 4.7 KΩ
• R4 = 100 Ω
• R5 = 3.9 KΩ
• R6, R8, R12, R15, R17 = 1 KΩ
• R7, R10, R11, R13, R14 = 10 KΩ
• R9 = 100 KΩ
• R23 = 120 Ω
• R24 = 470 Ω
• VR1 = 47 KΩ
• VR2 = 10 KΩ
• C1 = 3.3 nF ceramic disc
• C2, C6, C13, C14 = 0.1 µF ceramic disc
• C3, C8 = 0.01 µF ceramic disc
• C4 = 1 nF ceramic disc
• C5 = 10 µF, 25V electrolyte
• C7 = 2.2 µF, 25V electrolyte
• C9 = 10 µF, 10V electrolyte
• C10, C11 = 10 pF ceramic disc
• C12 = 1000 µF, 50V electrolyte
• IC1 = NE555 (timer IC)
• IC2 = µA741 (operational amplifier)
• IC3 = LM567 (Phase-Locked-loop)
• IC4 = 8085 (Microprocessor)
• IC5 = 2732A (EPROM 4k)
• IC6 = 64LS373 (Octal Transparent Latch)
• IC7 = 8255 (programmable peripheral interface)
• IC8, IC9 = MCT2E optocoupler
• IC10 = 74LS00 (NAND gate)
• IC11 = 7809 (9V regulator)
• IC12 = 7812 (12V regulator)
• T1, T3 – T9 = BC548 (NPN transistor)
• T2 = L14G1 (Phototransistor)
• D1 = 1N4148 (Switching diode)
• D2 – D10 = 1N4007 (rectifier diode)
• LED1 – LED3 = Red LED
• IR LED1 = Infrared Led
• X1 = 230V/50 Hz or 110V/60 Hz AC primary to 12V-0-12V, 300 mA secondary transformer
• XTAL = 3.5 MHz crystal
• SW1 = Push-to-on switch
• SW2 = On Off switch
• RL1, RL2, RL4, RL5 = 12V, 200 Ω, 1C/O relay
• RL3 = 12V, 200 Ω, 2C/O relay

Description

The electronic circuit design like in Figure 1 above show you microcontroller based security system. Other component need also that can supply with low voltage DC +5V source to charge this transistor and all system component from power supply built. With this electronic design circuit you can produce security system that useful now.

According ElectronicsProject blog mentioned that the transmitter section is designed and fabricate around timer IC NE555 wired as astable multivibrator followed by transistor T1 and IR LED. The oscillated frequency of transmitter section is decided by resistor R1 and R2, preset VR1 with capacitor C1. The output from pin 3 of IC1 is given to base of transistor T1 through resistor R3 for amplification as per required and given to IR LED. The modulated IR signal is transmitted by IR LED1.

The IR transmitted signal is focused on the base of photo transistor. The output from photo transistor is given to transistor T3 followed by op-amp (IC2) for amplification. The amplified signal from IC3 is given to input pin 3 of Phase-Locked-Loop (PLL) IC LM567 (IC3) through capacitor C4. The normal use of PLL IC (IC3) is frequency decoder so is here in order to drive the load. The tuning frequency is determined by variable resistor VR2 and current controlled oscillator by resistor R12. The tuning frequency (6-10 KHz) should match with modulating frequency transmitted by transmitter. Pin 8 of IC3 is connected to base of transistor T4 through resistor R13. Glowing LED1 indicate receiving signal is locked to transmitting signal. Transistor T5 is used as relay driver in order to energize the relay RL5. Relay RL1 energized normally when transmitted IR signal falls on phototransistor T2, at this time microprocessor does not get any input. But when IR signal is interrupted microprocessor get high (TTL-level) signal through port A of Programmable Peripheral Interface (PPI).

Read More

Electronic Design: Power Supply Resumption Alarm using 555 IC

Power Supply Circuit. - This is one of implementation of 555 IC to build power supply resumption alarm that very useful when power is fail in some place like factories, industries, auditoriums, and theatres etc. It is only need small component to build this electronic circuit that basically using 555 IC and other component.

The electronic design circuit of power supply resumption alarm using 555 IC is look like in Figure 1 below. Other component used like resistors, capacitors, transformer, relay, diodes, transistor and also buzzer to sound this alarm.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: Power Supply Resumption Alarm using 555 IC (source: Electronicsproject.org)

Component Parts

• R1, R2 = 10 KΩ
• R3 = 470 Ω
• VR1 = 1 MΩ (DELAY ADJ.)
• C1 = 1000 µF/25V
• C2 = 100 µF/25V
• C3 = 1 µF/25V
• C4 = 0.01 µF
• IC1 = NE555
• T1 = SL100
• D1 – D3 = 1N4001
• X1 = 12V – 0 – 12V 500 mA secondary
• F1 = Fuse
• RL1 = 12V, 400Ω relay
• 230V buzzer

Description

The electronic circuit design like in Figure 1 above show you power supply resumption alarm circuit using 555 IC. Other component need also that can supply with low voltage DC 12V source to charge this transistor and all system component from power supply built. With this electronic design circuit you can produce power supply resumption alarm that useful now.

According ElectronicsProject blog mentioned that the circuit is built around IC555 wired in monistable mode. The surge when power resumes triggers the monostable which switches transistor SL100 on. The relay energized and the bell or buzzer connected to N/O contacts of the relay operates. The preset time depends upon VR1 and C2. The Capacitor C3 connected to pin 2 of 555 should have low leakage.

Read More

Electronic Design: Motor Bike Brake Horn Circuit using Transistors

Audio Circuit. - There are many audio circuit of electronic design implemented in automotive car and motorcycle in this time. It is look implemented to build brake horn in motorcycle using small component electronic now.

One of this time we will show you one electronic design circuit that named with motor bike brake horn based on transistors component look like in Figure 1 below. Other component used like resistors, capacitors and also speaker used in this circcuit design.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: Motor Bike Brake Horn Circuit using Transistors (Source: ElecronicProject)

Component Parts

• R1, R7 = 2.2 KΩ
• R2, R4 = 820 Ω
• R3, R5 = 470 Ω
• R6 = 4.7 KΩ
• R8 = 10 KΩ
• R9 = 4.7 Ω, 0.5W
• C1 = 22 µF/25v
• C2 = 4.7 µF/63V
• C3 = 100v/16V
• C4 = 0.047 µF
• C5 = 0.01 µF
• T1 – T4 = BC148B
• T5 = SL100
• LS1 = 4Ω speaker

Description

The electronic circuit design like in Figure 1 above show you motor bike brake horn circuit using transistors. Other component need also that can supply with low voltage DC 4.5 - 12V source to charge this transistor and all system component. With this electronic design circuit you can produce motor bike brake horn that useful now.

According ElectronicProjects blog mentioned that the circuit can be operated from 4.5V to 12V DC or direct from the brake point of the motor-bike, Resistor R7 should be replaced with 1-ohm. 1/2W in case of an 8-ohm speaker. T5 is a driver transistor. C3 polarity can be reversed for a sudden off of the circuit.

Read More

Electronic Design: Wind Sound Generator Circuit using Transistor

Generator Circuit. - This is the other electronic design circuit for implementating of transistors and transformer in this time for you. This electronic design circuit mentioned with wind sound generator using transistors as the major component used.

The electronic design circuit of wind sound generator circuit look like shown in Figure 1 below. From the circuit shown, that there many other major component used like resistor, capacitor, speaker, and transformer.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: Wind Sound Generator Circuit using Transistor (Source: ElectronicProjects)

Component Parts

• R1 = 1 MΩ
• R2 = 4.7 KΩ
• R3 = 100 KΩ
• R4 = 10 Ω
• VR1 = 1 MΩ
• C1 = 0.01 µF
• C2 = 0.0033 µF
• C3 = 1000 µF/16V
• T1, T2 = BC548
• D1 = 1N4001
• X1 = 230V AC Primary To 9V/6V – 0V AC Secondary
• LS1 = 8Ω speaker

Description

The electronic circuit design like in Figure 1 above show you wind sound generator circuit using transistors. Other component need also that can supply with low voltage DC 9V source to charge this transistor and all system component. With this electronic design circuit you can produce wind sound generator that useful now.

According ElectronicProjects blog mentioned that using this simple circuit, one can generate the sound of wind. The circuit is basically an astable multivibrator build around two NPN transistors.
By adjusting the 1M potentiometer (VR1), the sound can be changed from that of wind to storm, sound of sea, hiss of escaping gas from a container through a small hole etc. A 9-Volt or 6-volt unregulated power supply is enough. How-ever, a battery may be used instead. The output sound will be slightly changed. The prototype has been successful tested with the given power supply. Also and 8-ohm, 5cm, low wattage speaker is recommended.

Read More

Electronic Design: Stepper Motor Controller Circuit Using TDA2030

Motor Circuit. - This is the other electronic design circuit for implementating of TDA2030 IC in this time for you. This electronic design circuit mentioned with stepper motor controller using TDA2030 IC as the major component used.

The electronic design circuit of stepper motor controller circuit look like shown in Figure 1 below. From the circuit shown, that there many other major component used like CD4017 IC, LF356 IC, diodes, resistors, and capacitor.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: Stepper Motor Controller Circuit Using TDA2030 (Source: www.circuitdiagram.net)

Component Parts

• TDA2030 IC
• CD4017 IC, 
• LF356 IC, 
• Diodes, 
• Resistors, and 
• Capacitor

Description

The electronic circuit design like in Figure 1 above show you stepper motor controller circuit using TDA2030 IC. Other component need also that can supply with low voltage DC 12V source to charge this IC and all system component. With this electronic design circuit you can produce stepper motor controller system that useful now.

According CircuitDiagram blog mentioned that the circuit which come from Elektor Electronics Magazine (Author: Gert Baars), can also supply motor currents up to 3.5 A, which means it can be used to drive relatively large motors. The circuit is also short-circuit proof and has built-in over temperature protection. Two signals are required for driving a stepper motor. In logical terms, they constitute a Grey code, which means they are two square-wave signals with the same frequency but a constant phase difference of 90 degrees.

IC1 generates a square-wave signal with a frequency that can be set using potentiometer P1. This frequency determines the rpm of the stepper motor. The Grey code is generated by a decimal counter in the form of a 4017. Outputs Q0 and Q9 of the counter go high in succession in response to the rising edges of the clock signal. The Grey code can be generated from the outputs by using two OR gates, which are formed here using two diodes and a resistor for each gate, to produce the I and Q signals.

Here “I” stands for “in-phase” and “Q” for “quadrature”, which means it has a 90-degree phase offset from the I signal. It is common practice to drive the windings of a stepper motor using a pair of push-pull circuits for each winding, which is called an “H bridge”. That makes it possible to reverse the direction of the current through each winding, which is necessary for proper operation of a bipolar motor (one whose windings do not have centre taps).

Read More

Electronic Design: Sensitive Optical Burglar Alarm Circuit using NE555 IC

Alarm Circuit. - This is the other electronic design circuit for implementating of NE555 IC in this time for you. This electronic design circuit mentioned with sensitive optical brglar alarm based on NE555 IC as the major component used.

The electronic design circuit of sensitive optical burglar alarm circuit look like shown in Figure 1 below. From the circuit shown, that there many other major component used like transistor, led, resistors, and capacitor.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: Sensitive Optical Burglar Alarm Circuit using NE555 IC (Source: Electronicprojects.org)

Component Parts

• R1, R5 = 1 KΩ
• R2 = 100 KΩ
• R3 = 4.7 KΩ
• R4 = 10 KΩ
• VR1 = 1 MΩ
• VR2 = 100 KΩ
• C1 = 1 µF/16V
• C2 = 0.01 µF
• C3 = 0.047 µF
• C4 = 0.01 µF
• C5 = 47 µF/25V
• IC1, IC2 = NE555
• T1 = 2N5777 Photo Transistor
• T2 = BC547
• LED1 = RED LED
• LS1 = 8Ω / 0.5W

Description

The electronic circuit design like in Figure 1 above show you sensitive optical burglar alarm circuit using NE555 IC. Other component need also that can supply with low voltage DC 12V source to charge this IC and all system component. With this electronic design circuit you can produce alarm for security system that useful now.

According ElectronicProjects blog mentioned that this optical burglar alarm uses two 555 timer ICs (IC1 and IC2). Both the ICs are wired as astable multivibrators. The first astable multivibrator built around IC1 produces low frequencies, while the second astable multivibrator built around IC2 produces audio frequencies.

General-purpose Darlington photo-transistor T1 is used as the light sensor. To increase the sensitivity of the circuit, NPN transistor T2 is used.

Place phototransistor T1 where light falls on it continuously. Phototransistor T1 receives light to provide base voltage to transistor T2. As a result, transistor T2 conduct to keep reset pin 4 of IC1 at low level. This disables the first multivibrator (IC1) and hence the second multivibrator (IC2) also remains reset so the alarm (LS1) does not sound.

Read More

Electronic Design: Unipolar Stepper Motor Driver Circuit using CD4093 and CD4013 IC

Motor Circuit. - This is the other electronic design circuit for controlling motor stepper driver universally in this time for you. With this circuit you can control unipolar stepper motors with 5, 6 or 8 wires. It uses four MOSFET IRFZ44. This circuit can be operated in free-standing or PC-controlled mode.

The electronic design circuit of unipolar stepper motor driver circuit look like shown in Figure 1 below. From the circuit shown, that there many integrated circuit (IC) used look like CD4093, CD4013, and LM7805 IC.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: Unipolar Stepper Motor Driver Circuit using CD4093 and CD4013 IC (Source: CircuitDiagram)

Component Parts

• CD4093, 
• CD4013, 
• LM7805 IC
• Resistor
• Variable resistor
• MOSFET IRFZ44
• Capacitors

Description

The electronic circuit design like in Figure 1 above show you unipolar stepper motor driver circuit using CD4093 and CD4013 IC. Other component need also that can supply with low voltage DC 5V source to charge this IC and all system after down by IC LM7805. With this electronic design circuit you can produce motor stepper driver that useful now.

According Circuitdiagram blog mentioned that in free-standing mode an internal square-wave oscillator based on IC2:B of the 4093 supplies timing pulses to the OSC output. The frequency of these pulses and thus the speed of the stepper motor is controlled by the trimpot VR1 (100K.) A series 1K resistor controls the maximum frequency. You may increase the value of this resistor for your own needs. These pulses are fed into the STEP input which is buffered and inverted by IC2:D. This helps prevent false triggering. Similarly, IC2:C buffers and inverts the DIRection input. A SPDT taking the input to +5VDC or ground controls the direction of rotation.

IC3:C and D (4030 or 4070 exclusive OR gates) invert the outputs available at Q and /Q outputs of each of the flip-flops (FF) IC4:A and IC4:B. The incoming step-pulses clock the FF, thus toggling the Q & /Q outputs and this turns the MOSFET’s on and off in sequence. The IRFZ44’s have a low on-resistance and can deliver up to 6A each without needing a heatsink.

Power to the stepper motor is connected to V+ and GND terminals as shown on the overlay. There is a separate power supply, KITV, to the 78L05 to power the IC’s. 9V – 12VDC will be sufficient. R2/C2 form a low-pass filter to filter fast-rise switching transients from the motor.

Read More

Electronic Design: Digital Fan Speed Control Circuit using CD4510BE

Motor Circuit. - There are many electronic design circuit for controlling everything like motor, lamp, temperature, etc. One popular controller motor speed electronic design circuit is designed to control fan speed using induction motor 220VAC.

In here we will show you one of the digital fan speed control circuit with using 220VAC induction motor popular today. So, the electronic design circuit of digital fan speed control circuit look like shown in Figure 1 below. From the circuit shown, that there many integrated circuit (IC) used look like CD4510BE, CD4051, CD4543, MOC3011, LM7809, 4N33, and CD4093.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: Digital Fan Speed Control Circuit using CD4510BE (Source: CircuitDiagram)

Component Parts

• CD4510BE, 
• CD4051, 
• CD4543, 
• MOC3011, 
• LM7809, 
• 4N33, 
• CD4093
• UJT2N2646
• Zener diode
• Transformer
• Triac BT135
• Resistors
• Capacitors
• 7 Segment
• Rectifier diode

Description

The electronic circuit design like in Figure 1 above show you digital fan speed control circuit using CD4510BE IC. Other component need also that can supply with low voltage DC 12V source to charge this IC and all system after down by IC LM7809. With this electronic design circuit you can produce stereo channel selector for your audio system that useful now.

According Circuitdiagram blog mentioned that the current step number is displayed on a 7-segment display. Speed can be varied over a wide range because the circuit can alter the voltage applied to the fan motor from 130V to 230V RMS in a maximum of seven steps.

The triac used in the final stage is fired at different angles to get different voltage outputs by applying short-duration current pulses at its gate. For this purpose a UJT relaxation oscillator is used that outputs sawtooth waveform. This waveform is coupled to the gate of the triac through an optocoupler (MOC3011) that has a triac driver output stage.

The pedestal voltage control is used for varying the firing angle of the triac. The power supply for the relaxation oscillator is derived from the rectified mains via 10 Kohm, 10W series dropping/limiting resistor R2.

The pedestal voltage is derived from the non-filtered DC through optocoupler 4N33. The conductivity of the Darlington pair transistors inside this optocoupler is varied for getting the pedestal voltage. For this, the positive supply to the LED inside the optocoupler is connected via different values of resistors using a multiplexer (CD4051).

The value of resistance selected by the multiplexer depends upon the control input from BCD up-/down-counter CD4510 (IC5), which, in turn, controls forward biasing of the transistor inside optocoupler 4N33. The same BCD outputs from IC5 are also connected to the BCD-to-7-segment decoder to display the step number on a 7-segment display.

Read More

Electronic Design: Stereo Channel Selector Circuit using KA2281 IC

Audio Circuit. - There are many audio circuit design to get best result in audio system this time. One design is how to select the output stereo from many input audio source. This is named with stereo channel selector that can select the many input selector to output stereo.

In here we will show you one of the stereo channel selector circuit with four channel that selected one in output stereo. So, the electronic design circuit of stereo channel selector circuit look like shown in Figure 1 below. From the circuit shown, that there many integrated circuit (IC) used look like KA2281, NE555, CD4017, and CD4066.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: Stereo Channel Selector Circuit using KA2281 IC (Source: ElectronicsZone)

Component Parts

• NE555 IC
• KA2281 IC
• CD4017 IC
• CD4066
• Resistors
• Capacitors
• LEDs
• Variable resistor
• Diode 1N4004

Description

The electronic circuit design like in Figure 1 above show you stereo channel selector circuit using KA2281 IC. Other component need also that can supply with low voltage DC 12V source to charge this IC and all system. With this electronic design circuit you can produce stereo channel selector for your audio system that useful now.

According ElectronicsZone blog mentioned that when power supply is turned ‘on’, channel A (AR and AL) is selected. If no audio is present in channel A, the circuit waits for some time and then selects the next channel (channel B). This search operation continues until it detects audio signal in one of the channels. The inter-channel wait or delay time can be adjusted with the help of preset VR1. If still longer time is needed, one may replace capacitor C1 with a capacitor of higher value.

Suppose channel A is connected to a tape recorder and channel B is connected to a radio receiver. If initially channel A is selected, the audio from the tape recorder will be present at the output. After the tape is played completely, or if there is sufficient pause between consecutive recordings, the circuit automatically switches over to the output from the radio receiver. To manually skip over from one (selected) active channel to another (non-selected) active channel, simply push the skip switch (S1) momentarily once or more, until the desired channel input gets selected. The selected channel (A, B, C, or D) is indicated by the glowing of corresponding LED (LED11, LED12, LED13, or LED14 respectively).

IC CD4066 contains four analogue switches. These switches are connected to four separate channels. For stereo operation, two similar CD4066 ICs are used as shown in the circuit. These analogue switches are controlled by IC CD4017 outputs. CD4017 is a 10-bit ring counter IC. Since only one of its outputs is high at any instant, only one switch will be closed at a time. IC CD4017 is configured as a 4-bit ring counter by connecting the fifth output Q4 (pin 10) to the reset pin. Capacitor C5 in conjunction with resistor R6 forms a power-on-reset circuit for IC2, so that on initial switching ‘on’ of the power supply, output Q0 (pin 3) is always ‘high’. The clock signal to CD4017 is provided by IC1 (NE555) which acts as an astable multivibrator when transistor T1 is in cut- off state.

Read More

Electronic Design: Car Parking Guard Circuit using Infrared Sensor and 555 IC

Alarm Circuit. - This is one of the application of infra red sensor and 555 IC to build very useful circuit that called with car parking guard. Beside two component mentioned above, there are also any other component like LM567 and photo darlington transistor.

So, the electronic design circuit of car parking guard look like shown in Figure 1 below. From this Figure that it is show you the car parking circuit using pasive component like resistor and capacitor that easy to buy in this market.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: Car Parking Guard Circuit using Infrared Sensor and 555 IC (Source: Electronics-hub.com)

Component Parts

• Infra red sensor
• NE555 IC
• LM567 IC
• Photo darlington transistor
• Resistors
• Capacitors

Description

The electronic circuit design like in Figure 1 above show you car parking guard using infra red sensor and 555 IC. In here we can use low voltage DC 12V source to charge this IC and all system. With this electronic design circuit you can produce car parking guard that useful now.

According Electronics-hub blog mentioned that The reverse indicator light supply is given to the 7805 regulator to give 5v to the rest of the circuit. The diode D6 is used to eliminate the reverse current and wrong supply polarity.

When the car is driving in reverse the car battery will provide DC supply the reverse light indicator at the back of the car when this supply came to the reverse light indicator the circuit will have the power supply.7805 will regulate the DC voltage to 5V and give to the IR Sensors through the transistor with 20 KHz modulating frequency of the LM567 (TONE DETECTOR) available at Pin5. The resistor R1 will resists the IR senor current. At this point the pin8 of LM567 is high which will enable the LM555 timer operating in astable multivibrator mode. The output of the timer is enabled which can be assured by the LED (blinking) and also buzzer will beeps at determined rate given by the resistors R6, R7 and capacitor C7. The timer output also is given to the lamp through a transistor. The lamp will blink as a warning signal because of the PWM signal generated by the timer, transistor will work as a switch and resistor R10 will limit the current. This condition is maintained until the 20 KHz signal is received by the pin3 of the LM567.

The above condition is when there is no obstacle in the path of the car while taking reverse. If there is a obstacle the IR beam will radiate back to the IR sensor and the 20KHz modulated signal is given to the pin3 of LM567 through photo Darlington transistor, at this point the pin8 of the LM567 is turned to low and also gets locked to detect the 20Khz signal. By this the LM555 is turned low and disabled by this the led will remain lighting and buzzer makes the continuous sound to alert the driver.

Read More

Electronic Design: High Temperature fire Alarm using Transistors and UM3561 IC

Alarm Circuit. - There are many electronic design project to build alarm system using special advantages and simple component. But you also can build it by your self with special electronic component like transistor and IC UM3561.

One electronic design circuit to build alarm system for high temperatur detection is look like in Figure 1 below. From this Figure that it is show you the solar charger circuit using Transistors and UM3561 IC that popular found in the market this time.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: High Temperature fire Alarm using Transistors and UM3561 IC (Source: Eleccircuits)

Component Parts

• R1_____________66 ohms
• R2_____________720K
• R3_____________10K
• R4_____________500 ohms
• D1____Diode 1N4001
• ZD1___Zener diode 3V 0.5W
• LED1____LED red color
• IC1______UM3561 Three Siren Sound Generator
• Q1_______BC109___transistors
• Q1_______BC109___transistors
• Q2_______AC188___transistors
• Q3_______BC147___transistors
• Q4_______BC187___transistors
• RY1____Relay 6V, 100 ohms
• Speaker 8 ohms, 1W

Description

The electronic circuit design like in Figure 1 above show you alarm system for high temperatur detection circuit using the major component called with Transistors and UM3561 IC. In here we can use low voltage DC 6V source to charge this IC and all system. With this electronic design circuit you can produce alarm system for high temperature that useful now.

According Eleccircuits blog mentioned that when the temperature rise exceeds the limit, it will sound the siren rang out. It is easy to use with transistor circuit to detects heat. Then, a loud noise of the sirens with IC packages.

He use the combination between Q1 (BC109), which is silicon NPN transistor and Q2 (AC188) which is PNP germanium transistor To detect heat in case of fire. Then, the siren will sound warning beeps. The collector lead of Q1 is connected with Base lead of Q2, while the collector lead of Q2 is connected with the relay-RY1.

The second section circuit include with IC1-UM3561. Which is siren generator IC or a machine gun at pin 5 and pin 6 of IC is connected to 3 volts power supply. When relay is running, pin 2 to ground. The resistor-R2 across pin 7 and pin 8 to limit the frequency of oscillator. The output will send to right of both transistors Q3 and Q4 which is connection as darlington compound to boost up signal from IC1 resistor R4, which is connected in series with Zener Diode to limit voltage to apply to IC1. The LED1 connected with resistor R1 in series and parallel with R4 . Which will light up when the sound generator working.

Read More