Power supply unit for electronic device

Details Power supply unit for electronic device Power supply unit for electronic device

1996-09-26

1998-09-08

Berhane, Adolf

Electric power conversion systems

Current conversion

Encased in plug housing

H02M 100

Patent

active

058054405

ABSTRACT:
A power supply unit for an electronic device includes a power plug and an interconnection between the poser plug and the device. A power plug for an AC-DC adapter fits into a battery compartment of an electronic device instead of into a separate jack. The power supply unit includes an elastic cover that ensures a positive connection between the device and the power plug to prevent accidental disengagement of the power plug from the device. The power plug and battery compartment are configured so that an incorrect power plug cannot be connected by mistake. The configuration preferably includes a switch to signal the device that an AC-DC adapter is installed.

REFERENCES:
patent: 4025933 (1977-05-01), Berg
patent: 4959021 (1990-09-01), Byre
patent: 5540596 (1996-07-01), Bothe et al.

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