Resonant DC-DC converter capable of controlling by pulse width m

Details Resonant DC-DC converter capable of controlling by pulse width m Resonant DC-DC converter capable of controlling by pulse width m

1996-04-25

1998-09-08

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 20, 363 24, 363 39, 363 97, H02M 3335

Patent

active

058054324

ABSTRACT:
In a resonant DC-DC converter for converting a d.c. input voltage into a d.c. output voltage, a main switching element (3) switches the d.c. input voltage under control of switching pulses to supply an a.c. voltage to a primary side of a transformer (4). A resonant circuit (5) is provided at a secondary side of the transformer. A clamp circuit is connected to the main switching element and comprises a first capacitor (2-1) and an auxiliary switching element (2-2) serially connected to the first capacitor. The main and the auxiliary switching elements are alternately put into an on state under control of the switching pulses.

REFERENCES:
patent: 4253136 (1981-02-01), Nanko
patent: 5066900 (1991-11-01), Bassett
patent: 5159541 (1992-10-01), Jain
patent: 5343079 (1994-08-01), Mohan et al.
patent: 5430633 (1995-07-01), Smith
patent: 5490052 (1996-02-01), Yoshida et al.
S. Asou, et al., "Current-Resonant Type (SMZ) Converter", Sanken Technical Report, vol. 26, No. 1, 1994, pp. 11-22.

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