PID control circuit

Published:2011/5/25 21:35:00 Author:Christina | Keyword: PID, control circuit | From:SeekIC

The PID control circuit is as shown, it is the proportion (P), integral (I) and the differential (D) control circuit. The proportion circuit which is composed of A1 is related with the loop gain, by adjusting RP1, you can change the inverter gain in the range of 0.5 to ∞; it is also the integral circuit, the integral time constant can be changed in the range of 22 to 426S; A3 is the differential circuit, the time constant is decided by the Cl(Rl+R(RP3)); A4 outputs the proportion, integral and differential circuits to the phase inversion to compose the U.



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