Power converter symmetry correction circuit

Details Power converter symmetry correction circuit Power converter symmetry correction circuit

1982-12-10

1985-11-12

Beha, Jr., William H.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 26, 363 97, H02P 1322

Patent

active

045531986

ABSTRACT:
A pulse width modulated power converter having a single time multiplexed symmetry correction circuit operative to vary the pulse width of output drive pulses applied to an output transformer. As a result, the average current and thus the volt second product seen by each half of the transformer primary winding will be equal under steady state conditions. The transformer drive remains balanced over the entire dynamic range to prevent unwanted saturation of the transformer core.

REFERENCES:
patent: 4005352 (1977-01-01), Kugler
patent: 4150426 (1979-04-01), Jansson
patent: 4233658 (1980-11-01), Lupatin et al.
patent: 4404623 (1983-09-01), Jourdan
patent: 4477867 (1984-10-01), Pellegrino
Jansson, "A Sample-and-Hold Balancing and Protection Circuit for Push-Pull Switched-Mode Power Supplies," Willard Technical Communications, No. 140, pp. 424-438, Oct. 1978.

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