Auxiliary turn-on mechanism for reducing conduction loss in...

Details Auxiliary turn-on mechanism for reducing conduction loss in... Auxiliary turn-on mechanism for reducing conduction loss in...

2006-09-12

2008-10-28

Riley, Shawn (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

C323S272000

Reexamination Certificate

active

07443146

ABSTRACT:
Conduction loss in the body-diode of a low side MOSFET of a power switching stage of one phase of a coupled-inductor, multi-phase DC-DC converter circuit, associated with current flow in the output inductor of that one phase that is induced by current flow in a mutually coupled output inductor of another phase, during normal switching of that other stage, is effectively prevented by applying auxiliary MOSFET turn-on signals, that coincide with the duration of the induced current, to that low side MOSFET, so that the induced current will flow through the turned-on low side MOSFET itself, thereby by-passing its body-diode.

REFERENCES:
patent: 7138789 (2006-11-01), Moussaoui et al.

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