High efficiency auxiliary switching power supplies

Details High efficiency auxiliary switching power supplies High efficiency auxiliary switching power supplies

1994-08-16

1996-01-16

Wong, Peter S.

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

363 98, 363132, 323224, H02M 3335

Patent

active

054850762

ABSTRACT:
Method and apparatus for producing an auxiliary voltage in a switching power supply. One or more auxiliary windings are coupled to the main inductor of the switching power supply. A synchronous switch is used in conjunction with the auxiliary winding to provide rectification and additionally provides waveform averaging which improves efficiency and voltage regulation over varying load conditions.

REFERENCES:
patent: 3129381 (1960-02-01), Manteuffel
patent: 4745538 (1988-05-01), Cross et al.
patent: 5331533 (1994-07-01), Smith

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