Supplement to cross regulation in DC to DC converters

Details Supplement to cross regulation in DC to DC converters Supplement to cross regulation in DC to DC converters

1981-10-14

1984-05-08

Wong, Peter S.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 82, 363 93, 323266, H02M 3335

Patent

active

044478666

ABSTRACT:
A variable inductance is placed in series with the diode rectifiers of the auxiliary outputs of a dc-to-dc converter. Increasing or decreasing the value of this inductance affects only the permeance of leakage flux paths which link the transformer winding peculiar to that auxiliary output. Such changes in the permeance of the leakage flux involve only the self-inductance of the transformer winding associated with that auxiliary output. When the permeance of the variable inductor is increased, the voltage to which the auxiliary output can rise increases as well. Conversely the steady state value to which the output voltage can rise may be reduced by reducing the permeance of the variable inductor. An error amplifier across the terminals of the auxiliary output detects and deviation in the output voltage from a predetermined, selected level. The error detector causes the value of the variable inductance to change so as to compensate for deviations in the output voltage from the predetermined selected levels.

REFERENCES:
patent: 2903639 (1959-08-01), Meszaros
patent: 3087107 (1963-04-01), Hunter et al.
patent: 3200328 (1965-08-01), Green
patent: 3210637 (1965-10-01), Gams
patent: 3569818 (1971-03-01), Dahlinger
patent: 4004209 (1977-01-01), Lawson, Jr.
patent: 4058758 (1977-11-01), Peterson
patent: 4122514 (1978-10-01), Amin
patent: 4217632 (1980-08-01), Bardos et al.

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