Power adapter for providing output power limiting and...

Details Power adapter for providing output power limiting and... Power adapter for providing output power limiting and...

2007-07-03

2010-10-26

Sterrett, Jeffrey L (Department: 2838)

Electric power conversion systems

Current conversion

Including automatic or integral protection means

C363S021090, C363S080000, C320S140000

Reexamination Certificate

active

07821800

ABSTRACT:
Disclosed is a power adapter having a voltage limiting circuit for limiting an output voltage of the power adapter at a predetermined voltage level when an output current of the power adapter is smaller than a threshold current, and a power limiting circuit for limiting an output power of the power adapter at a predetermined power level when an output current of the power adapter reaches the threshold current, in which the voltage limiting circuit can be configured to receive a current control signal from a load and in response thereto issue a load current regulation signal to a switching control circuit of the power adapter, thereby regulating the output voltage of the power adapter based on the load current regulation signal.

REFERENCES:
patent: 5408401 (1995-04-01), Miyazaki
patent: 6137267 (2000-10-01), Kates et al.
patent: 6492845 (2002-12-01), Ge et al.
patent: 7012408 (2006-03-01), Chen
patent: 7046524 (2006-05-01), Hoffman et al.
patent: 2005/0041446 (2005-02-01), Harnett et al.

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