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:
Mar. 01, 2005
Filed:
Aug. 11, 2003
Tomohisa Yamamoto, Aichi-ken, JP;
Tomohisa Yamamoto, Aichi-ken, JP;
Denso Corporation, Kariya, JP;
Abstract
A driving circuit having a p-n-p transistor and an n-p-n transistor which are connected in series between a high-voltage side source terminal (V) and a ground terminal, and a plurality of inverters provided on a path through which an input signal is transmitted to both the transistors. One of both the transistors is turned on, and the other is turned off, by means of the inverters to bring an output terminal connected between both the transistors, to any of a high voltage level and a low voltage level. The inverters are each constituted of a bipolar transistor which is element-isolated by silicon oxide layers in an n-silicon layer, and, in addition to inverters each having in the n-silicon layer a psubstrate region for drawing out electric charges, inverters which do not have the psubstrate region are provided in combination with the former.