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:
Dec. 20, 2005
Filed:
Oct. 29, 2003
Hirotada Higashihama, Ikoma, JP;
Hisashi Usui, Hirakata, JP;
Koji Soshin, Toyonaka, JP;
Toshiaki Saito, Hirakata, JP;
Yoji Minami, Nagoya, JP;
Hirotada Higashihama, Ikoma, JP;
Hisashi Usui, Hirakata, JP;
Koji Soshin, Toyonaka, JP;
Toshiaki Saito, Hirakata, JP;
Yoji Minami, Nagoya, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
An electrical leak detecting apparatus for detecting electrical leak of a power supply device includes two voltage division elements which have an identical impedance value and are connected to each other in series between input terminals or output terminals of a DC/AC conversion circuit of the power supply device, a detection element which has one end connected to a junction of the voltage division elements, a capacitor which is inserted between the other end of the detection element and ground and a decision member which receives a voltage drop across the detection element as a detection signal and processes the detection signal so as to judge occurrence of the electrical leak.