Switching amplifier architecture

Details Switching amplifier architecture Switching amplifier architecture

2006-01-03

2006-01-03

Mottola, Steven J. (Department: 2817)

Amplifiers

Modulator-demodulator-type amplifier

C330S136000, C330S297000

Reexamination Certificate

active

06982593

ABSTRACT:
A supply voltage and/or bias of a switching amplifier is modified based on at least one characteristic of the input signal relative to a threshold level. A binary waveform converter converts the input signal into a binary waveform for inputting into the switching amplifier. The switching amplifier amplifies the input signal, while the supply voltage and/or bias is modified in response to changes of the at least one characteristic of the input signal.

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patent: 1 492 229 (2004-12-01), None
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European Search Report for EP 04 02 5039, completed Jul. 8, 2005 by Examiner T. Agerbaek in Munich.
Zhao, et al. Institute of Eletrical and Electronics Engineers: “Doherty Amplifier with DSP Control to Improve Performance in CDMA Operation”, 2003 IEEE MTT-S International Microwave Symposium Digest. (IMS 2003). Philadelphia, PA, Jun. 8-13, 2003, IEEE MTT-S International Microwave Symposium, New York, NY: IEEE, US, vol. 3 of 3, Jun. 8, 2003, pp. 687-690, XP010645001, ISBN 0-7803-7695-1 *figure 4*.

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