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:
Nov. 15, 2011
Filed:
Jun. 07, 2007
James D. Sullivan, Galena, OH (US);
James D. Sullivan, Galena, OH (US);
InPower LLC, Galena, OH (US);
Abstract
An improvement for a smart, highside, high current, power switch module formed in an integrated circuit having at least one composite MOS/FET transistor switch connected to controlling and protection circuits. The power switch module has a load terminal (L), a battery input terminal (B), a control input terminal (C) and a diagnostic feedback terminal (M). The improvement provides overcurrent protection from a substantially instantaneous short circuit across an electrical load connected to the load terminal of the power switch module. The improvement is a capacitive circuit element connected between the battery input terminal (B) and the diagnostic feedback terminal (M). The capacitance of the capacitive circuit element should be at least large enough that the capacitive circuit element applies a power supply voltage to the controlling and protection circuits for a time interval that maintains the protection circuits operative and able to turn OFF the MOS/FET transistor switch in the event of the short circuit.