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:
Feb. 19, 2013
Filed:
Apr. 11, 2008
Petar Grbovic, Vernon, FR;
Petar Grbovic, Vernon, FR;
Schneider Toshiba Inverter Europe SAS, Pacy sur Eure, FR;
Abstract
A method for managing the temperature implemented in a speed controller that includes several modules, each including a case containing a power semiconductor that provides a pulsed voltage to an electrical load, each module being characterized by a junction temperature, a heat sink, and a temperature sensor mounted on the heat sink. The method for a module includes estimating a case temperature based on a predetermined thermal model of the sink, a temperature measured by the sensor and average power losses that the module undergoes, the predetermined thermal model of the sink integrating the thermal transfer impedances representing the thermal influence of one module on another and vice versa; determining a junction-case temperature based on the case temperature of the module and a limiting value of the junction temperature; and limiting the junction-case temperature obtained to a predetermined limiting value of the junction-case temperature.