Four quadrant power conversion topology

Details Four quadrant power conversion topology Four quadrant power conversion topology

1999-05-05

2000-11-21

Wong, Peter S.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 25, 363133, H02M 3335, H02M 7538

Patent

active

061512265

ABSTRACT:
A four quadrant power conversion topology comprising a multi-winding inductor, four switches, and four diodes is disclosed. The four quadrant power conversion is utilized in a number of power conversion devices such as a power efficient non-linear power amplifier that comprises the 4Q power conversion topology of the present invention and a switch-control-signal generator coupled to the 4Q power conversion topology. The switch-control-signal generator generates switch activation signals for driving the four switches of the 4Q power conversion topology. In one embodiment the switch-control-signal generator comprises a polarity detector for detecting the polarity of an input signal, a full wave rectifier for rectifying the input signal, a pulse width modulator which produces a pulse width modulated signal representative of the full wave rectified input signal, and steering logic that generates switch activation signals for driving the power conversion topology to produce an output representative of the input signal. The amplifier may optionally include switch drivers to condition the switch activation signals to drive the switches in the 4Q power conversion topology.

REFERENCES:
patent: 3896395 (1975-07-01), Cox
patent: 5109185 (1992-04-01), Ball
patent: 5946202 (1999-08-01), Balogh

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