Circuit configuration for triggering a field effect transistor w

Details Circuit configuration for triggering a field effect transistor w Circuit configuration for triggering a field effect transistor w

1997-03-10

1998-04-28

Elms, Richard T.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307112, 327111, 327374, H03K 17687

Patent

active

057448787

ABSTRACT:
A circuit configuration for triggering a field effect transistor with a source-side load has a capacitor which is connected on one hand through a load path of the field effect transistor to a supply voltage and on the other hand both to a first charging device and to a first controllable switching device. The first switching device is connected between the capacitor and a gate terminal of the field effect transistor. A second charging device acts through a second controllable switching device to charge a gate-to-source capacitor of the field effect transistor. A comparator monitors a voltage at the gate terminal of the field effect transistor and makes the first switching device conducting when a predetermined value is reached.

REFERENCES:
patent: 4736121 (1988-04-01), Cini et al.
patent: 5371418 (1994-12-01), Leipold et al.

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