Semi-soft switching and precedent switching in synchronous power

Details Semi-soft switching and precedent switching in synchronous power Semi-soft switching and precedent switching in synchronous power

1996-10-31

1998-05-26

Nguyen, Matthew V.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

G05F 156

Patent

active

057571732

ABSTRACT:
A control circuit for synchronous switching power supplies employing semi-soft switching during turn off and precedent switching during turn on. During turn off, an output voltage is compared to a reference voltage to turn on a synchronous switch after a primary switch is turned off. During turn on, a timing voltage ramp triggers the turn off of the synchronous switch prior to the turn on of the primary switch.

REFERENCES:
patent: 4158224 (1979-06-01), Kreyer et al.
patent: 4754385 (1988-06-01), McDade et al.
patent: 4922404 (1990-05-01), Ludwig
patent: 5535112 (1996-07-01), Vazquez Lopez et al.
patent: 5552695 (1996-09-01), Schwartz
patent: 5565761 (1996-10-01), Hwang

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