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
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.
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.
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