Predriver circuit

Details Predriver circuit Predriver circuit

2007-07-03

2007-07-03

Barnie, Rexford (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

C327S333000

Reexamination Certificate

active

11122908

ABSTRACT:
A predriver circuit that is capable of reducing the size of a drive transistor while preventing a drive transistor's gate from being destroyed, thereby reducing power consumption. The predriver circuit includes a current mirror circuit, which has a pair of transistors that are connected to a predriver power supply voltage; a level shifter circuit, which is connected to a first transistor via a self-bias circuit; and a discharge transistor, which is connected to a second transistor. A terminal connecting the second transistor to the discharge transistor is connected to a top gate of a high-side MOS transistor for a half-bridge connected drive circuit.

REFERENCES:
patent: 4818901 (1989-04-01), Young et al.
patent: 5546029 (1996-08-01), Koke
patent: 6037842 (2000-03-01), Bryan et al.
patent: 6130549 (2000-10-01), Buck
patent: 6919870 (2005-07-01), Fukuda
patent: 7034627 (2006-04-01), Kudari
patent: 2000082946 (2000-03-01), None

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