TWH9205 by the integrated circuit consisting of a temperature control circuit automatically
The temperature control circuit operates by utilizing a negative temperature coefficient thermistor (NTC), which decreases its resistance as the temperature rises. This characteristic allows the circuit to sense temperature changes effectively. The thermistor is integrated into the feedback loop of a control system, enabling precise monitoring of the temperature in the heating or cooling device.
The adjustment potentiometer (RP) is a variable resistor that allows the user to set a desired temperature threshold. By rotating the potentiometer, the resistance changes, which in turn alters the voltage across the thermistor. This voltage is compared to a reference voltage within the circuit, and when the sensed temperature deviates from the set point, the control circuit activates or deactivates the heating or cooling elements accordingly.
In applications such as water heaters or microwave ovens, this circuit ensures that the temperature remains within a safe and efficient range, preventing overheating and ensuring optimal performance. For air conditioners and refrigerators, the circuit helps maintain the desired temperature for food preservation or comfort cooling. In the case of fans, it can regulate the operation based on ambient temperature, while in automatic fire extinguishing devices, it can trigger activation when a certain temperature threshold indicative of a fire is reached.
Overall, this temperature control circuit is essential for enhancing the functionality and safety of various electronic appliances by providing reliable temperature regulation. As water heaters, microwave ovens and other heating equipment temperature control circuit; Figure 16- 53 (b) as air conditioners, refrigerators, fans and automatic fire extingu ishing devices circuits. Temperature sensing elements are two circuits Rt negative temperature coefficient thermistor of. Adjustment potentiometer RP, can change the set temperature.
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