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:
Dec. 23, 2003
Filed:
Jun. 19, 2002
Applicant:
Inventor:
Adrian I. Cogan, Redwood City, CA (US);
Assignee:
Tyco Electronics Corporation, Middletown, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 1/00 ;
U.S. Cl.
CPC ...
H05B 1/00 ;
Abstract
An electrical device includes a package having an array of connections, a thermally conductive, electrically insulative substrate in the package, a plurality of polymeric positive temperature coefficient (PPTC) resistors in the package in thermal contact with the substrate, and, at least one heating element such as a power field effect transistor in thermal contact with the substrate, for indirectly heating the PPTC resistors in response to a control current, thereby to trip the PPTC resistors from a low resistance state to a very high resistance state. A method for controlling a plurality of electrical loads is also disclosed.