N Phase digital inverter

Details N Phase digital inverter N Phase digital inverter

1979-12-31

1981-09-15

Shoop, William M.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

363 21, H02M 322

Patent

active

042901014

ABSTRACT:
An N phase digital inverter for converting an input DC voltage level to an output DC voltage level interposes between the input and output terminals thereof a plurality of N parallel switching circuits, each switching circuit thereof comprising in series a power switch and a transformer. The output of each transformer is coupled through a diode to a common point for filtering to generate the output DC voltage. The output DC voltage is sensed and fed to a logic generator for generating a ring sequence of pulses which activate sequentially each power switch in the plurality thereof. The logic generator controls the ratio of pulse time ON divided by pulse time ON plus pulse time OFF to maintain a desired level of output DC voltage.

REFERENCES:
patent: 3978393 (1976-08-01), Wisner et al.
patent: 3984799 (1976-10-01), Fletcher et al.
patent: 4020408 (1977-04-01), Grant
patent: 4031453 (1977-06-01), Teuling
patent: 4062057 (1977-12-01), Perkins et al.
patent: 4063307 (1977-12-01), Stephens
patent: 4195333 (1980-03-01), Hedel

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