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:
Nov. 08, 2016
Filed:
Aug. 24, 2015
Hyundai Dymos Incorporated, Chungcheongnam-do, KR;
Sang Kyung Koh, Gyeonggi-do, KR;
Jong In Shin, Gyeonggi-do, KR;
Sang June Lee, Gyeonggi-do, KR;
Seong Youn Jo, Seoul, KR;
HYUNDAI DYMOS INCORPORATED, Chungcheongnam-Do, KR;
Abstract
A piezoelectric drive circuit includes a first circuit which applies a voltage to the piezoelectric element and includes a plurality of transistors. A second circuit removes the residual current of the piezoelectric element and includes a plurality of transistors, and among the transistors included in the first circuit and the second circuit, transistors operated by an input signal are simultaneously turned ON/OFF by receiving the same input signal. Thus, when using a piezoelectric element as the air valve, it is possible to reduce leakage of air.