Switch-mode power supply with control of output supply voltage a

Details Switch-mode power supply with control of output supply voltage a Switch-mode power supply with control of output supply voltage a

1995-07-21

1997-05-27

Wong, Peter

Electric power conversion systems

Current conversion

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

363 41, 363 50, 363 80, H02M 3335

Patent

active

056337876

ABSTRACT:
A switch-mode power supply which can simplify its circuit construction and reduce its size and manufacturing cost by achieving output supply voltage control and prevention of overcurrent using a single circuit. The switch-mode power supply includes first and second supply voltage conversion sections for converting an input AC supply voltage in a switching mode, and a control section which senses a converted output supply voltage and an output supply current according to the converted output supply voltage provided from the second supply voltage conversion section to provide a control signal corresponding to the sensed voltage and current. The control section is coupled to the first supply voltage conversion section and controls the operation of the first supply voltage conversion section according to the control signal.

REFERENCES:
patent: 3777253 (1973-12-01), Callan
patent: 5297014 (1994-03-01), Saito et al.
patent: 5412555 (1995-05-01), Uramoto

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