Electrical digital fade in and fade out circuit

Details Electrical digital fade in and fade out circuit Electrical digital fade in and fade out circuit

H - Electricity

03

G

330/104

H03G 3/20 (2006.01) H03G 3/00 (2006.01)

Patent

CA 1036678

ELECTRICAL DIGITAL FADE IN AND FADE OUT CIRCUIT ABSTRACT OF THE DISCLOSURE An analog signal amplifier is connected in series in a control signal path of a control system. The feedback resistance which controls the gain of the amplifier is regulated in a digital manner and in response thereto the output of the amplifier is varied in a plurality of discrete steps in order to fade in or fade out the control signal. The control for the feedback resistance utilizes a quad analog switch which responds to the output from a digital counter. The circuit is applicable to aircraft control systems to provide smooth transitions during the switching of signal gain paths. -1-

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