Bias circuitry

Details Bias circuitry Bias circuitry

2004-07-21

2008-08-12

Richards, N. Drew (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C323S312000

Reexamination Certificate

active

07411441

ABSTRACT:
A biasing circuit comprising a first switching device having a control terminal, and first and second switching terminals. The first switching terminal being connected to a supply voltage, the second switching terminal being connected through a first resistive element to ground, and the control terminal being supplied by a reference voltage which is determined depending on the mode of operation of the circuit. The circuit further comprising a first branch connected between the control terminal and ground comprising a second resistive element in series with a second switching device. The second switching device forming part of a first current mirror having a second branch for effecting a generated bias value. During a normal mode of operation the reference voltage is dependant on the generated bias value, whereas during a standby mode of operation the reference voltage is connected to a low potential.

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