Temperature Controller (the 6th)

Published:2011/7/5 10:24:00 Author:Felicity | Keyword: Temperature Controller (the 6th) | From:SeekIC

Work of the circuit The circuit consists of power supply circuit, temperature measurement and control circuit, LED temperature indicator circuit and heater control circuit. (It is showed in picture 8-110.) Power supply circuit consists of power transformer T, rectifier diode VDl-VD4, three-terminal voltage regulator integrated circuit IC5 and filtering capacitors Cl. Temperature measurement and control circuit consists of temperature sensor IC lCl, temperature control selector switch S, three-terminal regulator IC lC2 and resistors Rl-R6. LED temperature indicator circuit consists of voltage reference integrated circuit IC3, LED display driver IC lC4, resistors R8-Rl3 and light-emitting diode VLl-VLlO. Heater control circuits consists of resistor Rl4, R15, capacitor C2, non-gate integrated circuit IC6 (D1-D4), solid state relays KN, KM and AC contactor heater EH.



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