Power supply

Details Power supply Power supply

1993-04-28

1995-07-04

Pellinen, A. D.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 20, 363 41, 363 45, H02M 7217

Patent

active

054306400

ABSTRACT:
A power supply for use in electronic apparatuses is disclosed, and the power supply is provided with a switching control circuit for controlling the switching operations of a switching device of a rectifying portion, thereby making the switching device more efficiently operate. In the case where an over-voltage is supplied, the switching device is prevented from being damaged. There is added a tertiary coil in the transformer for inducement of a voltage, and a switching circuit is added to it, so that the switching control circuit should be switched in synchronization with a main MOS transistor which is connected to a primary coil of the main transformer. Thus, the switching operations of the switching device is made more efficient, and the switching device is protected, as well as making it possible to carry out a high density design. Therefore the power supply can be applied to all kinds of electronic apparatuses.

REFERENCES:
patent: 5066900 (1991-11-01), Bassett
patent: 5126651 (1992-06-01), Gauen
patent: 5144547 (1992-09-01), Masamoto

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