Temperature PID Control Circuit of Operational Amplifier

Published:2011/6/22 6:41:00 Author:Michel | Keyword: Operational Amplifier, Temperature, PID Control Circuit | From:SeekIC

Error integral circuit can be added to the ordinary proportional control circuit if the temperature is controlled and it reaches specified value in the shortest time.But the error will increases as time goes on,the differentiating element is added to the circuit to reduce the error and increase speed and it make quick response to rapid changing temperature and the control is called PID contorl.This circuit form has high accuracy control and it is widely used. Circuit's Work PrincipleP represents proporation circuit and it's relevant to loop gain.The variable resistance VR1 can change between 0.5~∞ by using the opposite phase the amplifier gain A.



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

Print this Page | Comments | Reading(3)