Method and device in power transistor

Details Method and device in power transistor Method and device in power transistor

1996-10-30

1998-10-27

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361100, 361115, H02H 300

Patent

active

058285393

ABSTRACT:
A method and a device for control of a switching operation consisting of a turn-on or turn-off operation in a voltage-controlled power transistor (T1), wherein at least one current source (S1, S2) is arranged at the control electrode (G) of the power transistor for controlling the recharging of at least one of the capacitances which occurs between the control electrode (G) of the power transistor and the main electrodes (C, E) of the power transistor and thus to determine the time rate of change of at least one of the quantities voltage and current.

REFERENCES:
patent: 4540893 (1985-09-01), Bloomer
patent: 4947063 (1990-08-01), O'Shaughnessy et al.
patent: 5077651 (1991-12-01), Kobayshi et al.
patent: 5204562 (1993-04-01), Pace

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