Fast, low-power, low-drop driver circuit

Details Fast, low-power, low-drop driver circuit Fast, low-power, low-drop driver circuit

1985-06-27

1988-02-23

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

307106, 307315, 307300, H03K 1700

Patent

active

047272643

ABSTRACT:
A power driver circuit which provides a low voltage drop thereacross when turned on, without being driven into hard saturation. Hard saturation of the circuit according to the present invention is prevented by additional circuit elements which allow the transistor output circuit to be turned on while diverting excess drive current away from the input transistor. As a result, the driver circuit can provide the low saturation voltage and avoid unnecessary saturation of the output transistor while maintaining high-speed switching operation. The circuit may be implemented by discrete components, by a single integrated circuit or part of a larger integrated circuit.

REFERENCES:
patent: 3105158 (1963-09-01), Nichols
patent: 3534281 (1970-10-01), Hillhouse
patent: 3569742 (1971-03-01), Schroeder
patent: 3641369 (1972-02-01), Wallingford
patent: 3845405 (1974-10-01), Leidich
patent: 4028561 (1977-06-01), Black et al.
patent: 4031416 (1977-06-01), Peil
patent: 4164747 (1979-08-01), Gerstner
patent: 4426590 (1984-01-01), Rischmuller
patent: 4461960 (1984-07-01), Yasunaga
patent: 4542399 (1985-09-01), Monticelli

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