US 2003/0211767 A1 · Universal adapter with interchangeable plugs

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.

Claims14

Dependent claims

A universal adapter for use with a rechargeable handheld communication device, the universal adapter including a power module comprising:

a rectifier circuit operable to convert an AC power signal into a rectified power signal;
a DC transformer circuit operable to receive the rectified power signal and output a DC transformed power signal;
a top switch feedback circuit coupled to the DC transformer circuit and operable to regulate the DC transformed power signal;
a DC to DC switching converter circuit coupled to the DC transformer circuit and operable to convert the DC transformed power signal to a converted DC power signal;
and
a feedback control circuit coupled to the DC to DC converter circuit and operable to regulate the converted DC signal.

3 more elements

Dependencies are inferred from the claim text.

Universal adapter with interchangeable plugs

Life of this patent

Universal adapter with interchangeable plugs

Life of this patent

Abstract

Claims14