Pulse width modulated inverter

Details Pulse width modulated inverter Pulse width modulated inverter

1979-05-24

1981-01-06

Beha, Jr., William H.

Electric power conversion systems

Cascaded or combined, diverse conversions in which the...

Current and frequency

363 41, 363 97, H02P 1320, H02M 7537

Patent

active

042440157

ABSTRACT:
Apparatus for chopping DC power at a high frequency, for example 20 kHz, such high frequency being pulse-width modulated by a lower power frequency source at the desired power frequency. The pulse width modulation is servo controlled through current and voltage feedback to cause the current delivered to a load impedance to be in phase with a reference to power frequency oscillator and to control the output frequency voltage amplitude.

REFERENCES:
patent: 3246231 (1966-04-01), Clarke
patent: 3409817 (1968-11-01), Gillett
patent: 3916284 (1975-10-01), Hilgendorf

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