Step-up/step down chopper

Details Step-up/step down chopper Step-up/step down chopper

1981-09-02

1982-10-12

Shoop, William M.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

318811, 363 41, 363 65, H02M 700

Patent

active

043542239

ABSTRACT:
A step-up/step-down pulse width modulated chopper circuit using power transistors is provided which allows the output voltage to be both decreased from its input value and increased from its input value and thereby made to follow a commanded prescribed reference waveform. A plurality of step-up/step-down choppers can be interconnected to provide single phase and multiphase ac outputs.

REFERENCES:
patent: 3579081 (1971-05-01), Bates
patent: 3775663 (1973-11-01), Turnbull
patent: 3986097 (1976-10-01), Woods
patent: 4127895 (1978-11-01), Krueger
patent: 4161023 (1979-07-01), Goffeau
patent: 4186437 (1980-01-01), Cuk
patent: 4270165 (1981-05-01), Carpenter et al.

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