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:
Apr. 24, 2001
Filed:
Dec. 28, 1999
Shouzou Ohshima, Shizuoka, JP;
Mitsugu Watanabe, Shizuoka, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
When the power supply from a power source,to a load,is controlled in a switching manner by a semiconductor switch QA, reference voltage generating means (QB, Rr) generates a reference voltage (VDSB) having a voltage characteristic substantially equivalent to that of a voltage between the terminals of the semiconductor switch QA being connected to a predetermined load. Detecting means CMP,detects a difference between the voltage (VDSA) between the terminals of the semiconductor switch QA and the reference voltage (VDSB). Control means which consists of the gate driver,amd CMP,performs an on/off control of the semiconductor switch QA in accordance with the difference between the voltage (VDSA) between the terminals of the semiconductor switch and the reference voltage (VDSB).