Precision rectifier circuit

Details Precision rectifier circuit Precision rectifier circuit

H - Electricity

01

L

328/174

H01L 29/66 (2006.01) G01R 19/22 (2006.01) H02M 7/217 (2006.01)

Patent

CA 1116704

ABSTRACT OF THE DISCLOSURE A precision rectifier circuit using an operational amplifier connected in a differential amplifier mode. At least one of the rectifying feedback connections is provided by the emitter-base path of a transistor and a half-wave rectified version of the input signal is obtained from the collector of the transistor. A biassing circuit is disclosed for use when both rectifying feedback connections are transistors to reduce the output voltage swing between one transistor turning off and the other turning on.

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