Method and apparatus to reduce dynamic Rdson in a power...

Details Method and apparatus to reduce dynamic Rdson in a power... Method and apparatus to reduce dynamic Rdson in a power...

2011-05-24

2011-05-24

Riley, Shawn (Department: 2838)

Electricity: power supply or regulation systems

In shunt with source or load

Using a three or more terminal semiconductive device

C323S289000

Reexamination Certificate

active

07948220

ABSTRACT:
A method of preventing the Rdson of a III-V Nitride power switching circuit from varying over time. The method includes biasing the switch to a pre-bias voltage level just below turn ON when the switch is OFF, wherein traps are discharged when the switch is biased to the pre-bias voltage level just below turn ON and the varying of the Rdson over time due to traps is reduced. The method can be employed in DC-DC converter circuits having III-V Nitride control and synchronous switches connected at a switching node.

REFERENCES:
patent: 7012468 (2006-03-01), Brederlow et al.
patent: 7298123 (2007-11-01), Watanabe et al.
patent: 7504690 (2009-03-01), Kelly et al.
patent: 2006/0113971 (2006-06-01), Watanabe et al.
patent: 2008/0013690 (2008-01-01), Lurz et al.

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