Switching power supply

Details Switching power supply Switching power supply

1990-03-26

1991-01-22

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 97, 315411, 358190, H02M 3335

Patent

active

049875256

ABSTRACT:
A switching power supply includes a switching transistor coupled to a winding of a first transformer for generating a collector current. The collector current is coupled in a current path that includes that winding and a primary winding of a power transformer. The collector current is coupled to the base of the switching transistor via the first transformer such that when the switching transistor is conductive, both the collector current and a base current of the transistor are upramping. When the transistor is nonconductive, a horizontal synchronizing signal is coupled via the first transformer to synchronize the base current.

REFERENCES:
patent: 4073003 (1978-02-01), Chambers
patent: 4245180 (1981-01-01), Rilly et al.
patent: 4316127 (1982-02-01), Lamoureux
patent: 4466051 (1984-08-01), Fitzgerald
patent: 4623960 (1986-11-01), Eng
patent: 4692852 (1987-09-01), Hoover
patent: 4710859 (1987-12-01), Rilly
patent: 4766528 (1988-08-01), Marinus
patent: 4864481 (1989-09-01), Osman

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