AC ADAPTOR AND POWER SUPPLY DETERMINATION METHOD FOR AC ADAPTOR

Japanese Patent JP2014155249

A

PROBLEM TO BE SOLVED: To solve a problem that since when an incompatible AC adaptor is used, abnormal load currents do not necessarily flow, there is possibility that an AC adaptor side overcurrent protection circuit or an electronic equipment side fuse or the like do not operate, and that there is a risk that the AC adaptor is put in an overload state or a risk that the electronic equipment does not normally operate in this case.SOLUTION: An AC adaptor which supplies a power to electronic equipment includes: a transformer; current detection means arranged at the secondary side of the transformer; time measurement means; and determination means for controlling the time measurement means on the basis of currents detected by the current detection means, and for determining the propriety of power supply to the electronic equipment on the basis of the time measured by the time measurement means.

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SUZUKI ATSUSHI

JP2013020521A

August 25, 2014

February 05, 2013

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NEC ACCESS TECHNICA LTD

H02M7/12; H02H11/00

JP2005245064A	2005-09-08
JP2007110853A	2007-04-26
JPH11234892A	1999-08-27
JPH1065945A	1998-03-06

Desk Masahiko
Naoki Shimosaka

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