Patent Number: 8,816,625

Title: Integrated regenerative AC drive with solid state precharging

Abstract: Integrated AC regenerative motor drives and operating methods are presented in which a precharging circuit is provided with an IGBT, a diode and a parallel current limiting component in an intermediate DC circuit between a switching rectifier and an output inverter, and the drive is operated in one of three modes for motoring, regenerating and precharging.

Inventors: Kopiness; Jeremiah (Saukville, WI), Sladky; Raymond G. (Grafton, WI), Mohamed sayed ahmed; Ahmed (Mequon, WI)

Assignee: Rockwell Automation Technologies, Inc.

International Classification: H02P 1/16 (20060101); H02M 1/36 (20070101); H02P 3/14 (20060101)

Expiration Date: 8/26/12018