Stabilized power supply with reduced ripple factor

Details Stabilized power supply with reduced ripple factor Stabilized power supply with reduced ripple factor

1989-06-13

1990-10-30

Beha, Jr., William H.

Electric power conversion systems

Current conversion

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

363 17, 363 37, 363 61, 363 72, 378104, 378112, H02M 3335, H02M 5458

Patent

active

049673335

ABSTRACT:
The ripple factor in an electrical power supply of a dc-dc voltage raising type is reduced by using two double alternation dc/ac converters driven in phase quadrature with respect to each other. The signals delivered by the dc/ac converters are then combined by two transformers, the secondary coils of which are series connected. It is shown that the ripple factor is reduced and, similarly, that the reactive energy due to the commutation of th dc/ac converters is reduced even if it so happens that the power transmitted is doubled.

REFERENCES:
patent: 3697717 (1972-10-01), Kornrumpf et al.
patent: 4216382 (1980-08-01), Franke
patent: 4317039 (1982-02-01), Romandi
patent: 4504985 (1985-03-01), Steigerwald
patent: 4652985 (1987-03-01), Bougle
Patent Abstracts of Japan vol. 7, No. 247 (E-208 1392, Nov. 2, 1983, & JP-A-58 133170 (Matsushita Denko K.K.) 08-08-83.

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