Switched-mode power supply

Details Switched-mode power supply Switched-mode power supply

1998-05-04

1999-10-26

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 17, 363 19, 363 21, H02M 03335

Patent

active

059739380

ABSTRACT:
A switched-mode power supply comprises a transformer (2) having a primary winding (4) connected to a first pair of direct voltage terminals (8, 10) via a switching transistor (6) and having a secondary winding (22) which powers a load (24) via a diode (26). The switched-mode power supply further comprises a second switching transistor (34) which, together with the secondary winding (22), the load (24) the diode (26) and a second pair of direct voltage terminals (38, 40) is configured as a forward converter to power the load from a comparatively low direct voltage (12 V d.c.) supply.

REFERENCES:
patent: 4652984 (1987-03-01), Van Der Akker et al.
patent: 5610804 (1997-03-01), Shimizu

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