the circuit of the temperature and humidity automatic controller (2)

Published:2011/6/21 6:21:00 Author:Ariel Wang | Keyword: temperature, humidity , automatic controller | From:SeekIC

The 200V AC voltage is reduced by T,commutated by VD1～VD4,filtered by C1.Then it generates 45V DC voltage.One part of the voltage is regulated by IC1.Then it becomes +40V.It is branched by R3～R6,filtered by C5～C8.It generates +28V voltage and +16V voltage.The +28V voltage is for IC3 and IC5.The +16V voltage is for IC7.The other part of the voltage is brached by R1 and R2,regulated by C9,filtered by C10.It generates 12V DC voltage.It is the working voltage for IC4,IC6,VI～V4 and K.The +25.8V voltage is the reference voltage .It is the upper limit temperature of the temperature deviation alarm circuit.The +20V voltage is the reference voltage.It is the lower limit temperature of the temperature deviation alarm circuit.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Automotive_Circuit/the_circuit_of_the_temperature_and_humidity_automatic_controller_2.html

Print this Page | Comments | Reading(3)