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:
Jan. 23, 2018
Filed:
Apr. 11, 2014
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-Fu, JP;
Keiichi Ichikawa, Nagaokakyo, JP;
Shinji Goma, Nagaokakyo, JP;
Tsuyoshi Suesada, Nagaokakyo, JP;
Henri Bondar, Kyoto, JP;
MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyoto-Fu, JP;
Abstract
A capacitance (Cp) is a capacitance formed between a transmitting-device-side passive electrode and a receiving-device-side passive electrode. A capacitance (Ca) is a capacitance formed between a transmitting-device-side active electrode and a receiving-device-side active electrode. A bridge circuit formed by Zto Zis connected to a secondary side of a step-up transformer, where Zrepresents an impedance of a first element, Zrepresents an impedance of a second element, Zrepresents an impedance of a series circuit formed by the capacitance (Ca) and a load, and Zrepresents an impedance of the capacitance (Cp). By determining the impedances Zto Zsuch that this bridge circuit is balanced, a potential at a receiving-device-side reference potential point is made equal to a ground potential. This reduces variation in receiving-device-side reference potential, reduces noise, and stabilizes the operation of a load circuit on the receiving device side.