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. 03, 1991
Filed:
Jun. 08, 1990
Byron R Mehl, Belvidere, IL (US);
Sundstrand Corporation, Rockford, IL (US);
Abstract
A power switch responsive to drive signals developed by a signal source includes driver and driven transistors connected in a Darlington configuration and a further transistor having a control electrode and first and second main current path electrodes wherein the first main current path electrode of the further transistor is coupled to first main current path electrodes of the driver and driven transistors, the second main current path electrode ofo the further transistor is coupled to a control electrode of one of the driver and driven transistors and the control electrode of the further transistor receives the drive signals. The power switch is maintained in a saturated state over a wide range of load current magnitudes.