High speed control circuit for power field effect transistors

Details High speed control circuit for power field effect transistors High speed control circuit for power field effect transistors

1986-12-03

1988-08-30

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307270, 307297, H03K 17687, H03K 301

Patent

active

047679522

ABSTRACT:
A circuit for high speed control a field effect power transistors. This circuit has a transformer with a primary winding and a secondary winding. The secondary winding transmits control signals to gates of the field effect power transistors. An energy storage structure is coupled to the transformer, and stores energy required for controlling the gates of the field effect power transistors. This energy is stored during an inactive phase of the control signal. A transmission structure is coupled to the transformer, and is fed with energy stored in the energy storage structure. In this way, the transmission structure uses energy stored in the energy storage structure to supply the control signals to the gates of the field effect power transistors. Therefore, the secondary of the transformer is not loaded during this time. At other times, the transmission structure isolates the output of the transformer from the rest of the circuit.

REFERENCES:
patent: 4438356 (1984-03-01), Fleischer
patent: 4461966 (1984-07-01), Hebenstreit
patent: 4565931 (1986-01-01), Fumey
patent: 4672327 (1987-06-01), Wittlinger
EP-A-0 053 709, (Siemens) *p. 3, ligne 28-p. 5, ligne 31; p. 7, lignes 6-36; FIGS. 2 et 4*.
DE-A-3 243 660, (Zumtobel AG), *p. 5, ligne 13-p. 9, ligne 17; FIG. 1*.

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