Electric power conversion systems – Current conversion – Encased in plug housing
Patent
1998-02-06
1998-11-17
Berhane, Adolph
Electric power conversion systems
Current conversion
Encased in plug housing
307 28, 307 38, H02M 100, H02J 100
Patent
active
058385592
ABSTRACT:
Electrical equipment such as a personal computer includes a plurality of internal components which require different voltages including low voltages of about five volts for operation. The different voltages are supplied by an internal power supply, with a voltage regulator, which is itself connected to an appropriately transformed high voltage supply typically from an in-the-wall source. Peripherals such as a FAX/modem, CD ROM, or tape recorder are powered by cables plugged into mating sockets in the face of the computer housing. The sockets, in turn, are connected to the appropriate outputs of the internal power supply to obtain appropriate voltage power directly from the host computer in the absence of a transformed connection to a house supply. A switch is provided at each of the sockets to vary the voltage there.
REFERENCES:
patent: 5506790 (1996-04-01), Nguyen
patent: 5563782 (1996-10-01), Chen et al.
patent: 5616968 (1997-04-01), Fujii et al.
patent: 5753979 (1998-05-01), Lam
AM Group Corp
Berhane Adolph
Shapiro Herbert M.
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