Universal adapter with interchangeable plugs

Details Universal adapter with interchangeable plugs Universal adapter with interchangeable plugs

2005-01-18

2005-01-18

Vu, Bao Q. (Department: 2838)

Electric power conversion systems

Current conversion

Using semiconductor-type converter

C363S017000, C363S095000

Reexamination Certificate

active

06845023

ABSTRACT:
A universal adapter for use with a rechargeable handheld communication device includes a power module. An AC rectifier is operable to convert an AC power signal into a rectified AC power signal. A DC transformer is operable to receive the AC rectified power signal and output a DC transformed power signal. A top switch feedback circuit is coupled to the DC transformer and is operable to regulate the DC transformed power signal. A DC to DC switching converter is coupled to the DC transformer and is operable to convert the DC transformed power signal to a converted DC power signal. A feedback control circuit is coupled to the DC to DC converter and operable to regulate the converted DC signal.

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patent: 6328581 (2001-12-01), Lee et al.
patent: 6664762 (2003-12-01), Kutkut

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