Pulse-controlled gate circuit with protection against short-circ

Details Pulse-controlled gate circuit with protection against short-circ Pulse-controlled gate circuit with protection against short-circ

1991-04-24

1992-08-11

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Voltage regulator protective circuits

361 56, 361 93, 307270, 307246, 307576, 323289, 323290, H02H 902

Patent

active

051385155

ABSTRACT:
A pulse-controlled circuit for an insulate gate power transistor (Tp) comprises an auxiliary MOS transistor (T1) connected between the gate and a reference terminal of the power transformer in parallel with a pulse transformer secondary (W2). This circuit comprises two controlled unidirectionally conductive paths in parallel (D1, M1; D2, M2) between one terminal of the transformer secondary and the auxiliary transistor gate, these paths being alternatively rendered conductive when a positive or negative pulse is applied to the secondary of the transformer.

REFERENCES:
patent: 4500802 (1985-02-01), Janutka
patent: 4691129 (1987-09-01), Einzinger et al.
patent: 4928053 (1990-05-01), Sicard et al.
Patent Abstracts of Japan, vol. 11, Number 92 (E-491) [2539], Mar. 24, 1987 (61-242416).

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