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. 17, 2012
Filed:
Nov. 28, 2006
Qian Chang, Nürnberg, DE;
Qian Chang, Nürnberg, DE;
Baumuller Nurnberg GmbH, Nuremberg, DE;
Abstract
The invention relates to a circuit arrangement for recirculating the energy produced during the braking of electric motors into a supply system. The object of the invention is to implement the feeding of the energy that can be obtained when braking electric motors to the supply system without the use of an isolating transformer. Said object is solved by a forward branch (), comprising a rectifier () connected to the supply system (). The rectifier is guided via a first intermediate circuit () to a first inverter () that is connected to the motor (), and a backward branch (), comprising a second intermediate circuit () connected to the output of the first intermediate circuit (), wherein a second inverter () is connected to the second intermediate circuit, and the second inverter in turn is connected to the supply system () via a mains circuit (). Each pole of the second intermediate circuit () is connected via a series connection of a current-compensated throttle () and a diode () to the output of the first intermediate circuit ().