Power multiplexer and switch with adjustable well bias for...

Details Power multiplexer and switch with adjustable well bias for... Power multiplexer and switch with adjustable well bias for...

2006-02-28

2006-02-28

Tra, Quan (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Converging with plural inputs and single output

C327S427000, C327S434000

Reexamination Certificate

active

07005911

ABSTRACT:
Described is a power multiplexer that alternately transmits zero, supply voltage, and a relatively high voltage to a common output node. The power multiplexer includes low-impedance voltage switches, at least one of which includes a well-voltage select circuit. The well-voltage select circuit adjusts the well bias on a power-switching transistor, and consequently protects the power-switching transistor from damage caused by gate breakdown and forwarding biasing of the well.

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Jongshin Shin et al., “A New Charge Pump Without Degradation in Threshold Voltage Due to Body Effect,” IEEE Journal of Solid-State Circuits, Aug. 2000, pp. 1227-1230, vol., 35, No. 8, available from IEEE; http://www.ieee.org/ieeexplore.

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