Voltage inverter device

Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components

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Details

363 98, 363132, H02M 7217

Patent

active

045133620

ABSTRACT:
A voltage inverter device has a ROM which stores digital values in advance. The digital value is proportional to a voltage-time integration value of an AC output voltage waveform which corresponds to each of a plurality of basic electrical angle intervals. The digital values stored in the ROM are sequentially read out to be compared with time data supplied by a time counter. Comparison results correspond to specific electrical angles of the AC output voltage waveform. The results are combined by a logical circuit so as to obtain a control signal for generating an AC output voltage of desired waveform.

REFERENCES:
patent: 3538420 (1970-11-01), Klein
patent: 4173722 (1979-11-01), Detering
patent: 4290108 (1981-09-01), Woehrle et al.
patent: 4325112 (1982-04-01), Otusku
patent: 4370702 (1983-01-01), Shuey et al.

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