Circuit to inhibit false low voltage alarms

H - Electricity – 02 – P

Patent

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323/4

H02P 13/00 (2006.01)

Patent

CA 1228644

ABSTRACT A circuit for use in the voltage control loop of a power supply of the type which regulates its output voltage to a predetermined amplitude to allow at least two of the supplies to be connected by an associated series diode to the same external load so as to share that load on a substantially equal basis and avoid false indications of supply malfunction that may result from that connection at no load. In a first embodiment, the circuit controls the slope of the volt-ampere characteristic by linearly changing at the input to the voltage regulating means the signal representative of output voltage as a function of supply output current. In a second embodiment, the circuit controls the shape of the volt-ampere characteristic at no load by changing the predetermined amplitude to which the output voltage is regulated. The supply also includes a reload which is inserted in parallel with the external load.

518697

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