High efficiency MOSFET sine wave generator

Details High efficiency MOSFET sine wave generator High efficiency MOSFET sine wave generator

1985-07-31

1987-03-10

Salce, Patrick R.

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

330251, 330207A, H02M 112

Patent

active

046494677

ABSTRACT:
A high efficiency MOSFET sine wave generator is provided using the class D pulse width modulation principle. A triangle wave at f.sub.0 is compared to a variable amplitude sinusoid at about 1/10 f.sub.0 to provide a pulse width modulated signal for driving a pair of power MOSFETS connected for switching a B+ and a B- power supply. The power switch output is LC filtered and fedback for regulating the amplitude of the modulating sinusoid.

REFERENCES:
patent: 3970916 (1976-07-01), Kienscherf
patent: 4067057 (1978-01-01), Taddeo et al.
patent: 4244015 (1981-01-01), Beebe
patent: 4463318 (1984-07-01), Kaplan
patent: 4520437 (1985-05-01), Boettcher, Jr. et al.
Hexfet Databook (1985), International Rectifier, p. A-19.

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