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.
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
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.
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.
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