Transistor gate driving circuit with power saving of power...

Details Transistor gate driving circuit with power saving of power... Transistor gate driving circuit with power saving of power...

2011-04-19

2011-04-19

Tran, Anh Q (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Signal level or switching threshold stabilization

C326S030000, C326S034000, C326S087000

Reexamination Certificate

active

07928758

ABSTRACT:
A transistor gate driving circuit is developed for power saving. It includes a first high-side transistor, a second high-side transistor and a low-side transistor. A voltage clamp device is connected to the gate terminal of the first high-side transistor to limit the maximum output voltage. A detection circuit is coupled to detect a feedback signal of the power converter. The feedback signal is correlated to the output load of the power converter. The detection circuit will generate a disable signal in response to the level of the feedback signal. The disable signal is coupled to disable the second high-side transistor once the level of the feedback signal is lower than a threshold.

REFERENCES:
patent: 5731731 (1998-03-01), Wilcox et al.
patent: 7304464 (2007-12-01), Weng et al.
patent: 7479770 (2009-01-01), Kohout et al.

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