Power supply with reduced power comsumption in standby mode

Details Power supply with reduced power comsumption in standby mode Power supply with reduced power comsumption in standby mode

1998-11-13

2000-11-21

Riley, Shawn

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 70, H02M 3335

Patent

active

061512249

ABSTRACT:
A switched mode power supply comprises a circuit which, during a stand by mode, reduces the voltage output of the power supply to a minimum necessary to supply a microprocessor of an electronic appliance in which the supply is included. The circuit is included in a feedback loop from a power supply output to control a switching transistor. The effect of circuit is to reduce the ON time of said transistor, leading to a reduction of the output energy of the power supply.

REFERENCES:
patent: 4672516 (1987-06-01), Ney et al.
patent: 5126930 (1992-06-01), Ahn
R. Newman, "Servicing the Philips G110 Chassis", Television, Dec. 1995, pp. 106-110.

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