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:
Jan. 14, 2014
Filed:
Aug. 15, 2008
Douglas Pereira Da Silva, Joinville, BR;
Carlos Alberto Teixeira, Joinville, BR;
Douglas Pereira da Silva, Joinville, BR;
Carlos Alberto Teixeira, Joinville, BR;
Whirlpool S.A., Sao Paulo, BR;
Abstract
A system and a method for energizing an auxiliary winding of a capacitor-start single-phase induction motor for reducing the voltage level in the bidirectional switches during the blocking of said switches and for providing smooth switching of the electromechanical bidirectional switch. This is achieved by a system for energizing an auxiliary winding of an electric motor, the auxiliary winding being connectable in series with a voltage network, the system including a start capacitor and an electromechanical switch connected in series with the auxiliary winding, the system including an electronic switch connected in parallel with the series association of the electromechanical switch and the start capacitor, the electronic switch and the electromechanical switch being used to turn on the auxiliary winding, the system configured so that the electronic switch can be turned on simultaneously with the electromechanical switch and kept on simultaneously with the electromechanical switch for a stabilization time.