The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2018
Filed:
Dec. 29, 2014
Milpros Co., Ltd., Hwaseong, Gyeonggi-do, KR;
Chang-Ho Kim, Seoul, KR;
MILPROS CO., LTD., Hwaseong, Gyeonggi-do, KR;
Abstract
The present invention is a standby-power cutoff device for an electronic product using a power adaptor. The power adaptor comprises: a power supply unit for receiving external commercial AC power and generating DC power required for the operation of the electronic product; a first switching unit and a first switching driving unit installed in the path for providing the external commercial AC power to the power supply unit so as to cut off or supply the external commercial AC power from/to the power supply unit; a second switching unit and a second switching driving unit having a first contact for cutting off or supplying DC power from/to the electronic product and a second contact additionally connected to a DC power-supply line; a current-sensing unit for sensing the state of the current being provided to the electronic product; and an adaptor control unit for receiving the sensed signal from the current sensing unit in order to detect whether the electronic product is in an off state, if the electronic product is in the off state, controlling the first switching unit and the second switching unit such that the first and second switching units cut off power, and controlling the second contact to be in an on state, receiving the state of the signal of the DC power supply line through the second contact in order to detect if the electronic product is turned on, and, if the electronic product is in the on state, controlling the first switching unit and the second switching unit such that the first and second switching units operate to supply power, and controlling the second contact to be in an off state.