Two-stage amplifier

Details Two-stage amplifier Two-stage amplifier

2006-11-21

2006-11-21

Nguyen, Khanh Van (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including plural stages cascaded

C330S141000

Reexamination Certificate

active

07138874

ABSTRACT:
A two-stage amplifier includes a first stage and a second stage that are DC-connected through a coupling capacitor Cp. A charge pump generates a bias voltage Vp that is applied across the coupling capacitor Cp leads to maintain the time average of the voltage across said coupling capacitor constant.

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Pierre Favrat et al., “A High-Efficiency CMOS Voltage Doubler,”IEEE Journal of Solid-State Circuits, vol. 33, No. 3, Mar. 1998, pp. 410-416.
Gerrit W. den Besten et al., “Embedded 5 V-to-3.3 V Voltage Regulator for Supplying Digital IC's in 3.3 V CMOS Technology,”IEEE Journal of Solid-State Circuits, vol. 33, No. 7, Jul. 1998, pp. 956-962.
European Search Report.

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