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High-precision non-contact temperature control circuit 2

Source: InternetPublisher:偷熊计划 Keywords: No contact high precision temperature control circuit thermistor Updated: 2021/02/01

64.<strong>High precision</strong><strong>Contactless</strong><strong>Temperature control circuit</strong>Part 2.gif

It uses an operational amplifier A as a voltage comparator, a thermistor
Rt with a negative temperature coefficient as a temperature sensing element, and a series-connected transistor regulated power supply to provide DC power for the control circuit. The temperature control error of this circuit is about
±0.5°C and has high reliability.
Thermistor R. Choose RRCz-lokfl, or MF51 type.
 


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