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:
Jul. 08, 2014
Filed:
Dec. 30, 2010
Jens Loeffler, Villingen-Schwenningen, DE;
Henry Weissbach, Uehlingen-Birkendorf, DE;
Jens Loeffler, Villingen-Schwenningen, DE;
Henry Weissbach, Uehlingen-Birkendorf, DE;
EBM-Papst St. Georgen GmbH & Co. KG, St. Georgen, DE;
Abstract
An electronically commutated one-phase motor () has a stator having at least one winding strand () and a permanent-magnet rotor (). The rotor, as it rotates, induces a voltage (u) in the at least one winding strand (). The motor has an electronic calculation device (), preferably a microcontroller μC, which is configured to execute, during operation, the steps of a) sensing the value of the instantaneous operating voltage (Ub); (b) using the operating voltage value (Ub) and optionally further parameters, adjusting a time duration (T) of a switch-on current pulse (i) for the motor, in order to apply a consistent amount of electrical energy to the windings during start-up attempts, thereby maximizing the probability of successful start-up, regardless of possible fluctuations in motor operating voltage and related operating parameters. The switch-on current pulse duration (T) can be adjusted longer or shorter, as a function of operating experience.