High frequency switched mode converter

Details High frequency switched mode converter High frequency switched mode converter

1991-09-09

1992-11-03

Stephan, Steven L.

Electric power conversion systems

Current conversion

With conductive support mounting

363147, 174 524, 336205, 361392, 361394, 361421, H02M 100

Patent

active

051610981

ABSTRACT:
A small, lightweight, efficient, very low cost AC adaptor for consumer electronics applications is realized by combining a switching regulator integrated circuit along with a leadframe adapted to mount the switching regulator integrated circuit off-center, a single-sided printed circuit board and high frequency ferrite cores. These components are assembled onto a substrate, such as a printed circuit board, by means of well-known, low-cost automatic insertion assembly machines. The novel structural aspects result in formation of a transformer from the leadframe and traces on the printed circuit board. The power supply resulting from this assembly method may be small enough to be molded into the plug portion of a standard AC power cord.

REFERENCES:
patent: 3237079 (1966-02-01), Mas
patent: 4253231 (1981-03-01), Novet
patent: 4954940 (1990-09-01), Chandler et al.
patent: 4975671 (1990-12-01), Dirks

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