DC/DC conversion circuit

Details DC/DC conversion circuit DC/DC conversion circuit

1994-03-30

1996-07-09

Wong, Peter S.

Electric power conversion systems

Current conversion

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

H02M 3338

Patent

active

055351123

ABSTRACT:
A DC/DC conversion circuit of the type that implements the "forward PWM" topology includes a DC/AC converter, a self-driven synchronous rectifier which rectifies the alternating voltage signal coming from the DC/AC converter, and a filter that filters the rectified signal, thereby obtaining the DC output voltage from the DC/DC conversion circuit. This DC/DC conversion circuit is characterized in that the DC/AC converter includes means to generate an alternating signal with a square waveform that does not take zero instantaneous values such that no current flows through the body diode of either of the transistors of the self-driven synchronous rectifier.

REFERENCES:
patent: 4951186 (1990-08-01), Brakus et al.
patent: 5075837 (1991-12-01), Feldtkeller
patent: 5170040 (1992-12-01), Wirtz et al.

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