University of Minnesota
University of Minnesota
http://www.umn.edu/
612-625-5000

Ned Mohan

Personal

Research

Education

 

Patents

Number

Patent #

Title

Co-Inventors

Issue date

1

8,446,743

Soft switching power electronic transformer

Ranjan Kumar Gupta, Krushna Keshab Mohapatra,
Ned Mohan, Gysler Castelino, Kaushik Basu, Nathan Weise

May 21, 2013

2

8,169,179

Open-ended control circuit for electrical apparatus

Ned Mohan, Krushna Mohapatra

May 1, 2012

3

7,869,236

Carrier-based pulse-width modulation (PWM) control for matrix converters

Ned Mohan, Krushna K. Mohapatra, Satish Thuta, Gaurav K. Aggarwal, St. Philip Jose, Moshi

Jan 11, 2011

4

6,611,444

Zero voltage switching DC-DC converter

Rajapandian Ayyanar, Ned Mohan

Aug 26, 2003

5

6,310,785

Zero voltage switching DC-DC converter

Rajapandian Ayyanar, Ned Mohan

Oct 30, 2001

6

5,892,352

Synchronization of the switching action of hysteresis current controlled parallel connected power electronics systems

Johann W. Kolar, Wien, Austria; Ned Mohan, St. Paul; Girish R. Kamath

Apr 6, 1999

7

5,818,126

Power transfer controller

Ned Mohan

Oct 6, 1998

8

5,656,924

System and method for providing harmonic currents to a harmonic generating load connected to a power system

Ned Mohan, Girish Kamath, Vernon D. Albertson

Aug 12, 1997

9

5,548,165

Hybrid filter for reducing distortion in a power system

 

Ned Mohan, Mukul Rastogi

Aug. 20,1996

10

5,499,178

System for reducing harmonics by harmonic current injection

Ned Mohan

Mar 12, 1996

11

5,345,375

System and method for reducing harmonic currents by current injection

Ned Mohan

Sep 6, 1994

12

5,343,079

Standby power supply with load-current harmonics neutralize

Ned Mohan, Maximilian R. Peterson, Conor A. Quinn

Aug 30, 1994

13

5,344,877

Standby power supply with load-current harmonics neutralize

Ned Mohan, Maximilian R. Peterson

Aug 2, 1994

14

5,172,009

Standby power supply with load-current harmonics neutralize

Ned Mohan

Dec 15, 1992

15

4,855,888

Constant frequency resonant power converter with zero voltage switching

Christopher P. Henze, Ned Mohan, John G. Hayes

Aug 8, 1989

16

4,242,628

Wind energy conversion system

Narendra Mohan, Mahmoud Riaz

Dec 30, 1980

17

4,224,660

Composite filter for suppressing harmonic frequencies on electric power

Narendra Mohan

Sep 23, 1980

18

4,079,305

Power supply for high power loads

Harold Peterson, Narendra Mohan

Mar 14, 1978

19

4,053,820

Active Filter

Harold Peterson, Narendra Mohan

Oct 11, 1977

 

Pending:

  1. Siddharth Raju; Ned Mohan, "Multi-Level Matrix Converters" Provisional Patent Application, Filed in Nov 2014
  2. Sahoo, A. K.; Mohan, N.; "Modular Converter with Multilevel sub-modules" Utility Patent Application, US, Serial No. 14/536,321, Filed on Nov 7, 2014.

Notes:

  1. Patents 4,053,820, 4,224,660, 5,548,165 and 5,656,924 are on the topic of active filtering. This research led to active filters by Square D and ABB.
  2. Patents 5,499,178 and 5,548,165 were the basis of the “Minnesota Rectifier” on which the chargers for GM’s EV1-fleet and S-10 pickups were based.