Pulse area modulation and high-efficiency linear power...

Details Pulse area modulation and high-efficiency linear power... Pulse area modulation and high-efficiency linear power...

2011-02-08

2011-02-08

Nguyen, Patricia (Department: 2817)

Amplifiers

Modulator-demodulator-type amplifier

C330S12400D, C330S295000

Reexamination Certificate

active

07884667

ABSTRACT:
A linear power amplifier system using pulse area modulation includes: an envelop/phase decomposer for decomposing an input signal into an envelop signal and a phase signal; a pulse area modulator for modulating the envelop signal such that an area of the modulated envelop signal is proportional to an amplitude of the envelop signal; a control signal generator for converting the modulated envelop signal into a control signal; an automatic gain adjuster for equalizing pulse height of the modulated envelop signal; a mixer for mixing the phase signal with the output of the automatic gain adjustor to produce a RF pulse train; a power amplifier for amplifying the RF pulse train, to generate an amplified RF pulse train; and a band pass filter for restoring the original input signal from the amplified RF pulse train. The output level of the power amplifier is controlled by the control signal.

REFERENCES:
patent: 4714884 (1987-12-01), Glover
patent: 6724249 (2004-04-01), Nilsson
patent: 6759899 (2004-07-01), Lennartson et al.
patent: 6771121 (2004-08-01), Nilsson et al.
patent: 7321262 (2008-01-01), Nielsen et al.
patent: 7518442 (2009-04-01), Dijkstra et al.
patent: 10-2005-61013 (2005-06-01), None
Hirachi, et al. “A Novel Control Strategey on Single-Phase PWM Current Source Inverter Incorporating Pulse Area Modulation” Power Conversion Conference, Nagaoka, Japan Aug. 6, 1997, ISBN 0-7803-3823-5, vol. 1 pp. 289-294.

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