Modular DC power step down adapter

Details Modular DC power step down adapter Modular DC power step down adapter

2007-08-21

2007-08-21

Patel, Rajnikant B. (Department: 2838)

Electrical connectors

With flaccid conductor and with additional connector spaced...

C439S623000, C307S080000, C307S119000, C363S142000

Reexamination Certificate

active

10938217

ABSTRACT:
An apparatus for providing DC power to a portable computer operating at a source voltage and a peripheral device operating at step down voltage having a lower magnitude has an input cord for connection to an AC/DC converter that supplies the source voltage, a first output cord for connection to the peripheral device, and a second output cord for connection to the portable computer. An adapter circuit lights an indicating LED when the DC source voltage is connected to the input cord, generates the DC step down voltage to the first output cord and lights another indicating LED and generates the DC source voltage to the second output cord. The adapter circuit includes a switch for selecting between a first magnitude step down voltage lower than a magnitude of the source voltage and second magnitude lower than a magnitude of the source voltage and higher than the first magnitude.

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