Self-timed switching regulator pre-driver

Details Self-timed switching regulator pre-driver Self-timed switching regulator pre-driver

2006-07-11

2006-07-11

Vu, Bao Q. (Department: 2838)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S109000, C327S112000

Reexamination Certificate

active

07075343

ABSTRACT:
A switching voltage regulator includes a switching transistor connected to conduct a current (i) between a supply voltage and a first node in response to a control signal which cycles the transistor on and off, and a “pre-driver” circuit which provides the control signal. The control signal is pulled up and down with a current Idrv. The pre-driver circuit adaptively varies Idrvsuch that it is at a relatively low level when the rate of change of current i (di/dt) in the switching transistor is relatively high, and is at a relatively high level when di/dt is relatively low.

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