DC-DC converter

Details DC-DC converter DC-DC converter

2006-10-16

2008-03-04

Han, Jessica (Department: 2838)

Electric power conversion systems

Current conversion

Including automatic or integral protection means

C363S021160

Reexamination Certificate

active

07339804

ABSTRACT:
A DC-DC converter of the present invention includes: an activation circuit which activates a control circuit for controlling a turning on and off of a switching element; a second rectifying and smoothing circuit which supplies an output voltage, as a power supply, to the control circuit, the output voltage being obtained by rectifying and smoothing a voltage in a tertiary winding of a transformer; an overcurrent protection circuit which limits an output current to be supplied to a load when overloaded; an overcurrent detection circuit which detects that the load is in an overcurrent state, and which outputs a detection signal during a period when the overcurrent protection circuit is operated; and an activation current switching circuit which switches outputs from the activation circuit.

REFERENCES:
patent: 3805142 (1974-04-01), Rando
patent: 5995387 (1999-11-01), Takahashi et al.
patent: 6960906 (2005-11-01), Yamashita
patent: 2005/0264970 (2005-12-01), Shinobu
patent: 2001-145344 (2001-05-01), None

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