Reference current circuit, reference voltage circuit, and...

Details Reference current circuit, reference voltage circuit, and... Reference current circuit, reference voltage circuit, and...

2007-09-04

2010-10-05

Nguyen, Hai L (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S538000, C327S539000

Reexamination Certificate

active

07808307

ABSTRACT:
A current mirror circuit10is formed to have a current ratio (a transistor size ratio) of 1:m. As well, respective pairs of nMOS transistors MN1, MN3and nMOS transistors MN2, MN4are formed to have a current ratio of1:m. Two currents output from the current mirror circuit10are each distributed to two. The distributed currents flowing in the nMOS transistors MN2, MN4are added and are then allowed to flow into one resistor R2. Hence, for the resistor R2, only one resistor in which current of double flows suffices when m=1, for example. This effortlessly reduces the necessary resistance to one fourth.

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