System for enabling a full-bridge switch-mode amplifier to recov

Details System for enabling a full-bridge switch-mode amplifier to recov System for enabling a full-bridge switch-mode amplifier to recov

1998-07-10

2000-06-06

Lee, Benny

Amplifiers

Modulator-demodulator-type amplifier

330251, H03F 338

Patent

active

060723629

ABSTRACT:
A full-bridge amplifier that is able to provide power to all types of loads. The fill-bridge amplifier according to the present invention recovers reactive energy produced by capacitive loads instead of having the reactive energy be dissipated in the switches of the amplifier, thereby causing device failure. In one embodiment, two inductors and four diodes are added to the conventional full-bridge topology. Furthermore, a full-bridge amplifier according to an embodiment of the present invention is able to operate over a broad-band of radio frequencies.

REFERENCES:
patent: 4056786 (1977-11-01), Morrison et al.
patent: 4743858 (1988-05-01), Everard
patent: 4860152 (1989-08-01), Osborn
patent: 4894621 (1990-01-01), Koenig et al.
patent: 4949050 (1990-08-01), Swanson
patent: 5187580 (1993-02-01), Porter, Jr et al.
patent: 5191302 (1993-03-01), Rossnick
patent: 5420537 (1995-05-01), Weedon et al.
patent: 5515002 (1996-05-01), Ideler
Jeff Sherman, Dave Hamo, "Phase-Shifted, Zero-Voltage Switching Made Easy", Electronic Design, vol. 44, No. 6, p 105, Mar. 18, 1996.

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