DC-DC converter using flyback voltage

Details DC-DC converter using flyback voltage DC-DC converter using flyback voltage

1995-03-09

1997-04-15

Hecker, Stuart N.

Electric power conversion systems

Current conversion

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

363 56, H02M 3335

Patent

active

056216238

ABSTRACT:
When a MOS transformer switch 14 shifts from an ON state to an OFF state, a fly-back spike voltage is induced from a secondary winding 122 to a primary winding 121. As a result electric charge accumulates in a capacitor 281, via a diode 283 and a voltage, i.e. is the voltage of a battery 10 on to which the voltage between terminals of the capacitor 281 is stacked, is supplied to the DC power-supply voltage input terminal Vcc of a control circuit 16 via a LC low pass filter 34A. Energy stored in the capacitor 281 may be effectively utilized, while the fly-back spike voltage to the control circuit 16 side is cut by a LC low pass filter 34A.

REFERENCES:
patent: 4438485 (1984-03-01), Voigt
patent: 4890210 (1989-12-01), Myers
patent: 5278748 (1994-01-01), Kitajima
patent: 5347164 (1994-09-01), Yeh
patent: 5430633 (1995-07-01), Smith
patent: 5442536 (1995-08-01), Zimmermann

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