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Oscillators With Electromechanical Resonators
(AREA)
Abstract
The proposed device for determining the deviation of an electric circuit parameter from a set value contains a driving oscillator with sine constant-frequency output signal, a phase shifter, and a phase detector. The phase shifter contains a differential amplifier with negative feedback and an RC-circuit for setting phase shift. The noninverting input of the amplifier is connected to the midpoint of the RC-circuit, and the inverting input is connected to the midpoint of the feedback circuit.
UA20041008307U2004-10-132004-10-13Device for determining the deviation of an electric circuit parameter from a set value
UA6596U
(en)