Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Patent
1983-12-23
1985-10-08
Wong, Peter S.
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
363 56, 363 98, 363132, 363137, 318811, H02M 7537
Patent
active
045464227
ABSTRACT:
In a PWM control system for a voltage-type inverter which comprises a bridge connection of electric valves each comprising a reverse parallel connection of a semiconductor switching element and a diode, the direction of the current through each valve is detected, and variation in the output voltage is compensated in accordance with the result of the detection.
REFERENCES:
patent: 3967173 (1976-06-01), Stich
patent: 4400656 (1983-08-01), Duis
patent: 4445167 (1984-04-01), Okado
Tokyo Shibaura Denki Kabushiki Kaisha
Wong Peter S.
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