Driving circuit for a field effect transistor in a final semibri

Details Driving circuit for a field effect transistor in a final semibri Driving circuit for a field effect transistor in a final semibri

1994-01-11

1995-06-06

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Utilizing three or more electrode solid-state device

327389, H03K 17687

Patent

active

054225876

ABSTRACT:
A drive circuit for a field-effect transistor is disclosed, the field-effect transistor having a drain terminal connected to the positive pole of a voltage supply and a source terminal connected to a load. The drive circuit comprises a first transistor connected between the gate terminal of the field-effect transistor and the negative pole of the voltage supply for turning off the field-effect transistor. The first transistor is driven by an operational amplifier which has inverting and non-inverting teminals connected to the gate and source terminals of the field-effect transistor, respectively. Switches alternatively intercouple the field-effect transistor to either another voltage supply or the first transistor.

REFERENCES:
patent: 4603269 (1986-07-01), Hochstein
patent: 4672246 (1987-06-01), Donovan
patent: 5083051 (1992-01-01), Whatley et al.

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