Synchronous demodulator circuit

Details Synchronous demodulator circuit Synchronous demodulator circuit

H - Electricity

03

D

329/3

H03D 3/18 (2006.01) H02J 3/08 (2006.01)

Patent

CA 1050125

ABSTRACT OF THE DISCLOSURE A synchronous demodulator is provided for receiving signals including one that is subject to variation in wave- form and a predetermined reference signal having a known waveform from which signals is produced a demodulated output representing the relationship between the first and second signals with respect to their phase and amplitude. The apparatus includes means such as a signal transformer with a center-tapped secondary to produce two phase displaced signals from the first signal which are then applied by means such as a gate controlled two-channel input amplifier to the input of an amplifier such as an operational amplifier from which the demodulated output is obtained. Application to reactive load division between parallel AC generators is advantageous.

222248

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