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:
May. 23, 2017
Filed:
Mar. 24, 2014
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Kohtaroh Kataoka, Osaka, JP;
Masaru Nomura, Osaka, JP;
Takeshi Shiomi, Osaka, JP;
Shuji Wakaiki, Osaka, JP;
Akihide Shibata, Osaka, JP;
Hiroshi Iwata, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Abstract
A control circuit is driven by a driving voltage (V) generated by a generator circuit, and outputs a control signal. A drive circuit is driven by a driving voltage (V) generated by another generator circuit, and turns a switching element inside a switching circuit on or off by supplying, to the switching circuit, a drive signal based on the control signal. During activation of a switching device, a voltage generation controller detects a voltage value of the output voltage (V) of the generator circuit, and allows activation of the other generator circuit after verifying that the detected voltage value is at or above a designated threshold.