Electronic power switch

Details Electronic power switch Electronic power switch

1991-02-19

1992-07-14

Wong, Peter S.

Electric power conversion systems

Current conversion

With cooling means

363144, 361383, 361388, H02M 100

Patent

active

051309181

ABSTRACT:
This invention relates to an electronic power switch in the form of a half bridge circuit for switchable outputs greater than 1 kW, having a series circuit of two power semiconductor groups between two direct current connections. At least one power semiconductor group comprises a parallel circuit of a plurality of the same kind of individual power semiconductors of smaller current load ability. All power semiconductors of both groups are fastened on a common printed circuit board and the power semiconductors are used in the switching operation. By means of a special structure of the printed circuit board, cooling bars and power semiconductors, a power switch with a clearly reduced leakage inductance is obtained, which can be designed in a space saving manner as a fully, as well as, semi-controlled half bridge circuit for very high currents.

REFERENCES:
patent: 4639834 (1987-01-01), Mayer
patent: 4853828 (1989-08-01), Penn

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