d.c. to d.c. converter power supply with dual regulated outputs

Details d.c. to d.c. converter power supply with dual regulated outputs d.c. to d.c. converter power supply with dual regulated outputs

1986-06-13

1987-05-26

Salce, Patrick R.

Electric power conversion systems

Current conversion

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

363 41, 363 97, 323266, 323267, G05F 156, H02M 3335

Patent

active

046690360

ABSTRACT:
A d.c. to d.c. converter power supply having two substantially independent regulated outputs. A pulse width modulator (PWM) converts input d.c. to a.c. having a variable frequency and a variable duty cycle. The a.c. is applied to a transformer having two secondary windings for separate d.c. outputs. One of the secondary windings feeds a rectifier having a capacitor input type filter and means for regulating the output voltage by controlling the duty cycle of the PWM. The other secondary winding feeds a rectifier having a choke input type filter and means for regulating the output voltage by controlling the frequency of the PWM.

REFERENCES:
patent: 3671853 (1972-06-01), Weischedel et al.
patent: 4037271 (1977-07-01), Keller
patent: 4322817 (1982-03-01), Kuster
patent: 4327404 (1982-04-01), Horiguchi
patent: 4353113 (1982-10-01), Billings
patent: 4449173 (1984-05-01), Nishino et al.

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