Power supply device and method having a spark prevention...

Details Power supply device and method having a spark prevention... Power supply device and method having a spark prevention...

2007-10-23

2007-10-23

Sherry, Michael (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

Reexamination Certificate

active

10654931

ABSTRACT:
Disclosed is power supply device and method having a spark prevention function. The power supply device having a spark prevention function includes output connectors to which an external device is coupled to be supplied with electric power; and an output controller for controlling a level of a voltage outputted to the output connectors depending upon whether the external device is coupled to the output connectors. Accordingly, damages to parts and malfunctions due to spark occurrences can be prevented, so an external device can be coupled to a power supply device in operation without any damage.

REFERENCES:
patent: 3729673 (1973-04-01), Schneider
patent: 5214369 (1993-05-01), McCrea
patent: 5278748 (1994-01-01), Kitajima
patent: 6161027 (2000-12-01), Poirel
patent: 6320766 (2001-11-01), Park
patent: 6678131 (2004-01-01), Chapman et al.
patent: 6902412 (2005-06-01), Higgins
patent: 6903945 (2005-06-01), Kitano
patent: 09-172734 (1997-06-01), None
patent: 2002-0011017 (2002-02-01), None

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