James Ulrich

Person

Hartland, WI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Transformerless parallel AFE with ground current regulator
- Patent number 11,641,167
- Issue date May 2, 2023
- Rockwell Automation Technologies, Inc.
- James A. Ulrich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion system and filter therefor
- Patent number 10,476,381
- Issue date Nov 12, 2019
- Rockwell Automation Technologies, Inc.
- Christian S. Sartler
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Apparatus for reduced voltage stress on AC motors and cables
- Patent number 10,389,213
- Issue date Aug 20, 2019
- Rockwell Automation Technologies, Inc.
- Yuan Xiao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion system with conditioner capacitor discharge apparatus
- Patent number 10,008,952
- Issue date Jun 26, 2018
- Rockwell Automation Technologies, Inc.
- Jiangang Hu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Inverter control when feeding high impedance loads
- Patent number 8,693,227
- Issue date Apr 8, 2014
- DRS Power & Control Technologies, Inc.
- David J. Gritter
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Voltage drive system with hysteretic current control and method of...
- Patent number 7,894,224
- Issue date Feb 22, 2011
- DRS Power & Technologies, Inc.
- James A Ulrich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and system of harmonic regulation
- Patent number 6,681,190
- Issue date Jan 20, 2004
- DRS Power & Control Technologies, Inc.
- James A. Ulrich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and system of harmonic regulation
- Patent number 6,604,056
- Issue date Aug 5, 2003
- DRS Power & Control Technologies, Inc.
- James A. Ulrich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
POWER CONVERSION SYSTEM WITH CONDITIONER CAPACITOR DISCHARGE APPARATUS
- Publication number 20180183348
- Publication date Jun 28, 2018
- Rockwell Automation Technologies, Inc.
- Jiangang Hu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
APPARATUS FOR REDUCED VOLTAGE STRESS ON AC MOTORS AND CABLES
- Publication number 20180083514
- Publication date Mar 22, 2018
- Rockwell Automation Technologies, Inc.
- Yuan Xiao
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
METHOD AND APPARATUS FOR CURRENT AUTO BALANCING FOR PARALLEL CONVER...
- Publication number 20150145462
- Publication date May 28, 2015
- Rockwell Automation Technologies, Inc.
- James A. Ulrich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Inverter Control When Feeding High Impedance Loads
- Publication number 20130070505
- Publication date Mar 21, 2013
- DRS POWER & CONTROL TECHNOLOGIES, INC.
- David J. Gritter
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Voltage Drive System With Hysteretic Current Control And Method Of...
- Publication number 20100085789
- Publication date Apr 8, 2010
- DRS POWER & CONTROL TECHNOLOGIES, INC.
- James A. Ulrich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Method and system of harmonic regulation
- Publication number 20030212516
- Publication date Nov 13, 2003
- James A. Ulrich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Method and system of harmonic regulation
- Publication number 20020101749
- Publication date Aug 1, 2002
- James A. Ulrich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

James Ulrich

Person

Patents Grantslast 30 patents

Transformerless parallel AFE with ground current regulator

Power conversion system and filter therefor

Apparatus for reduced voltage stress on AC motors and cables

Power conversion system with conditioner capacitor discharge apparatus

Inverter control when feeding high impedance loads

Voltage drive system with hysteretic current control and method of...

Method and system of harmonic regulation

Method and system of harmonic regulation

Patents Applicationslast 30 patents

POWER CONVERSION SYSTEM WITH CONDITIONER CAPACITOR DISCHARGE APPARATUS

APPARATUS FOR REDUCED VOLTAGE STRESS ON AC MOTORS AND CABLES

METHOD AND APPARATUS FOR CURRENT AUTO BALANCING FOR PARALLEL CONVER...

Inverter Control When Feeding High Impedance Loads

Voltage Drive System With Hysteretic Current Control And Method Of...

Method and system of harmonic regulation

Method and system of harmonic regulation