DAC based switching power amplifier

Details DAC based switching power amplifier DAC based switching power amplifier

2009-02-27

2010-11-09

Le, Thanh C (Department: 2618)

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

Reexamination Certificate

active

07831227

ABSTRACT:
A power amplifier for use in a transmitter includes a first transistor having an input, a first node and a second node, a second transistor having an input, a first node and a second node and a digital to analog conversion module. The input of the first transistor is coupled to receive a first input, while the input of the second transistor is coupled to receive a second input. The second nodes of the first and second transistors provide an output of the power amplifier. The digital to analog conversion module is coupled to control current through the first and second transistors.

REFERENCES:
patent: 2005/0190854 (2005-09-01), Shakeshaft et al.
patent: 2006/0160499 (2006-07-01), Puma
patent: 2007/0026823 (2007-02-01), Eisenhut et al.
patent: 2007/0247222 (2007-10-01), Sorrells et al.

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