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:
Jul. 22, 2003
Filed:
Dec. 18, 2001
Jason M. Chilcote, Frisco, TX (US);
Peter G. Hancock, Plano, TX (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A voltage driver having a pass transistor using a sensing diode and disabling transistor to sense and disable the driver during a short circuit condition. No current sense resistors or other devices in series with the pass transistor are used. During a short circuit condition, the collector-emitter (or drain-source) voltage of the pass transistor prevents the sensing diode from conducting which causes the disabling transistor to remove the control signal to the pass transistor. This latches the driver output off, protecting the driver from the short circuit condition. Recycling the control signal unlatches the protection, allowing another attempt to turn on the driver.