Charge recycling power gate

Details Charge recycling power gate Charge recycling power gate

2006-09-08

2009-02-03

Chang, Daniel D (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Signal level or switching threshold stabilization

C326S083000, C327S544000, C365S227000

Reexamination Certificate

active

07486108

ABSTRACT:
A charge recycling power gate and corresponding method are provided for using a charge sharing effect between a capacitive load of a functional unit and a parasitic capacitance of a charge recycling means to turn on a switching means between a virtual ground and a ground, the charge recycling power gate including a first transistor, a virtual ground in signal communication with a first terminal of the first transistor, a ground in signal communication with a second terminal of the first transistor, a capacitor having a first terminal in signal communication with a third terminal of the first transistor and a second terminal in signal communication with the ground, and a second transistor having a first terminal in signal communication with the virtual ground and a second terminal in signal communication with the third terminal of the first transistor.

REFERENCES:
patent: 6310487 (2001-10-01), Yokomizo
patent: 2002/0075038 (2002-06-01), Mathew et al.

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