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. 27, 2010
Filed:
Jan. 22, 2007
Zhenning Z Liu, Mississauga, CA;
Ted J. Gayowsky, Mississauga, CA;
Randy J. Fuller, Hillsburgh, CA;
Wenjiang Yu, Mississauga, CA;
Yang YE, Mississauga, CA;
Daniel G Filimon, Richmondhill, CA;
Boris Plivcic, Oakville, CA;
That Nguyen, Mississauga, CA;
Zhenning Z Liu, Mississauga, CA;
Ted J. Gayowsky, Mississauga, CA;
Randy J. Fuller, Hillsburgh, CA;
Wenjiang Yu, Mississauga, CA;
Yang Ye, Mississauga, CA;
Daniel G Filimon, Richmondhill, CA;
Boris Plivcic, Oakville, CA;
That Nguyen, Mississauga, CA;
Honeywell International Inc., Morristown, NJ (US);
Abstract
Methods and apparatuses implement a thermal memory effect for a solid state power controller. A solid state power controller trip apparatus with thermal memory according to one embodiment comprises: a trip module including a first capacitor () and a counter (), wherein the first capacitor () charges multiple times, when an over current event occurs, and the counter () accumulates a count related to the charging of the first capacitor () for the multiple times, to detect a trip condition; and a discharging module connected to the trip module, the discharging module including a resistor () and a second capacitor (), wherein an electrical parameter associated with the count decays with time using the resistor () and the second capacitor ().