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:
Sep. 11, 2012
Filed:
Dec. 24, 2009
Kazuhiro Shimizu, Chiyoda-ku, JP;
Kazuhiro Shimizu, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A semiconductor device includes a low-side circuit, high-side circuit, a virtual ground potential pad, a common ground potential pad and a diode, formed on a semiconductor substrate. The low-side circuit drives a low-side power transistor. The high-side circuit is provided at a high potential region, and drives a high-side power transistor. The virtual ground potential pad is arranged at the high potential region, and coupled to a connection node of both power transistors to supply a virtual ground potential to the high-side circuit. The common ground potential pad supplies a common ground potential to the low-side circuit and high-side circuit. The diode has its cathode connected to the virtual ground potential pad and its anode connected to the common ground potential pad.