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. 18, 2000
Filed:
Jan. 14, 1998
Shirou Wakahara, Osaka, JP;
Kazuya Masuda, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A driving circuit includes: a first semiconductor switch with its source connected to a high-voltage power source; amultiple number of diodes with their anodes commonly connected to the drain of the first semiconductor switch; a multiple number of second semiconductor switches, each being connected at the drain to the cathode of the corresponding diode and the sources being commonly connected to a low-voltage power source. In this configuration, the first semiconductor switch is turned on so that all the outputs once have the high voltage supplied and then the plural second semiconductor switches are selectively turned on so as to output the low voltage from their output terminals.