Refrigerator temperature controller 2

Published:2011/8/5 2:56:00 Author:Ecco | Keyword: Refrigerator temperature controller | From:SeekIC

The refrigerator temperature controller circuit is composed of the power supply circuit and temperature detection control circuit, and it is shown in Figure 3-75. Temperature detection control circuit is composed of the thermistor RT, potentiometer RP, integrated electronic switch IC, resistors R1, R2, diode VDl, potentiometer K and working indicating LED VL. Power supply circuit is composed of the power transformer T, rectifier diode VL. Rl and R2 select 1/4W or 1/8W carbon film resistors. RP chooses the linear (X-type) potentiometer. C selects the aluminum electrolytic capacitor with the voltage in 16V. RT uses MF5l negative temperature coefficient thermistor. VDl-VD5 choose 1N4007 silicon rectifier diodes.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Control_Circuit/Temperature_Control/Refrigerator_temperature_controller_2.html

Print this Page | Comments | Reading(3)