Gate driver circuit and hysteresis circuit therefor

Details Gate driver circuit and hysteresis circuit therefor Gate driver circuit and hysteresis circuit therefor

1995-09-27

1997-10-07

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Particular stable state circuit

327143, H03K 3037

Patent

active

056752768

ABSTRACT:
A hysteresis circuit including first and second voltage reference circuits responsive to an input control signal for providing first and second voltage levels connected in series to produce a higher voltage level; a first switching circuit, responsive to the voltage reference circuits to turn on and provide an output drive signal when the higher voltage is reached; a second switching circuit, responsive to the first switching circuit turning on, for removing one of the first and second voltage levels to produce a lower voltage level; the first switching circuit turning off in response to the input level control signal decreasing below the lower voltage level.

REFERENCES:
patent: 4162435 (1979-07-01), Wright
patent: 4250544 (1981-02-01), Alley
patent: 4636936 (1987-01-01), Boyd, Jr. et al.
patent: 4642536 (1987-02-01), Boyd, Jr. et al.
patent: 4654566 (1987-03-01), Erdman
patent: 4757241 (1988-07-01), Young
patent: 5272398 (1993-12-01), Schroder-Brumloop et al.
patent: 5498987 (1996-03-01), Nelson
patent: 5523709 (1996-06-01), Phillips et al.

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