Patents

  • #63

High Efficiency AC-DC Converter

  • Patent 11,996,785
  • Status Granted
  • Inventor Jitaru, Ionel; Savu, Andrei; Budica, Lucian
  • Application 18/513,318
  • Assignee Rompower Technology Holdings LLC
  • Filling Date 17 Nov 2023
  • Date of Patent 28 May 2024
  • #62

Energy Extraction from the Parasitic Elements in Power Converters

  • Patent 11,929,665
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 18/373,590
  • Assignee Rompower Technology Holdings, LLC.
  • Filling Date 27 Sep 2023
  • Date of Patent 12 Mar 2024
  • #61

Low Noise Multilayer Transformer (Continuation)

  • Patent 11,929,198
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 17/948,966
  • Assignee Rompower Technology Holdings, LLC.
  • Filling Date 22 Sep 2022
  • Date of Patent 12 Mar 2024
  • #60

Harvesting Energy From Parasitic Elements of A Power Converter (Continuation)

  • Patent 11,848,617
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 17/849,775
  • Assignee Rompower Technology Holdings, LLC.
  • Filling Date 27 Jun 2022
  • Date of Patent 19 Dec 2023
  • #59

High Density Magnetic Structure

  • Patent 11,842,835
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 18/077,979
  • Assignee Rompwer Technology Holdings LLC.
  • Filling Date 08 Dec 2022
  • Date of Patent 12 Dec 2023
  • #58

Magnetic Structures For Low Leakage Inductance And Very High Efficiency (2nd Continuation)

  • Patent 11763984
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 17/845,609
  • Assignee Rompower Technology Holdings LLC
  • Filling Date 21 Jun 2022
  • Date of Patent 19 Sep 2023
  • #57

Very High Efficiency Soft Switching Converter Aka The Adjud Converter (2nd Continuation)

  • Patent 11742768
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 17/228,462
  • Filling Date 12 Apr 2021
  • Date of Patent 29 Aug 2023
  • #56

Phase-Shifted Full-Bridge Topology With Current Injection (Continuation-in-Part)

  • Patent 11736029
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 17/496,861
  • Filling Date 08 Oct 2021
  • Date of Patent 22 Aug 2023
  • #55

Energy Injection In A Resonant Circuit With Initial Conditions (Divisional)

  • Patent 11728723
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 17/495,245
  • Assignee Rompower Technology Holdings LLC
  • Filling Date 06 Oct 2021
  • Date of Patent 15 Aug 2023
  • #54

Self-Adjusting Current Injection Technology (2nd Continuation)

  • Patent 11671027
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 17/495,170
  • Assignee Rompower Technology Holdings
  • Filling Date 06 Oct 2021
  • Date of Patent 06 Jun 2023
  • #53

Low Noise Multilayer Transformer

  • Patent 11450470
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 17/524,495
  • Assignee Rompower Technology Holdings LLC
  • Filling Date 11 Nov 2021
  • Date of Patent 20 Sep 2022
  • #52

Harvesting Energy From Parasitic Elements Of A Power Converter

  • Patent 11374500
  • Status Granted
  • Inventor Jitaru, Ionel Dan; Jitariu, Mihai Bogdan; Savu, Andrei Stefan
  • Application 17/428,943
  • Assignee Rompower Technology Holdings LLC
  • Filling Date 05 Aug 2021
  • Date of Patent 28 Jun 2022
  • #51

Power Transformer For Minimum Noise Injection In Between Primary And Secondary Winding “Rompower Active Shield”

  • Patent 11374499
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 16/732,240
  • Assignee Rompower Technology Holdings LLC
  • Filling Date 31 Dec 2019
  • Date of Patent 28 Jun 2022
  • #50

Energy Recovery From The Leakage Inductance Of The Transformer (2nd Continuation)

  • Patent 11368097
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 17/694,610
  • Assignee Rompower Technology Holdings LLC
  • Filling Date 14 Mar 2022
  • Date of Patent 21 Jun 2022
  • #49

Magnetic Structures For Low Leakage Inductance And Very High Efficiency (Continuation in Part)

  • Patent 11367565
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 17/189,096
  • Assignee Rompower Technology Holdings LLC
  • Filling Date 01 Mar 2021
  • Date of Patent 21 Jun 2022
  • #48

Energy Recovery From The Leakage Inductance Of The Transformer (Continuation)

  • Patent 11277073
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 16/866,516
  • Assignee Rompower Technology Holdings LLC
  • Filling Date 04 May 2020
  • Date of Patent 15 Mar 2022
  • #47

High Efficiency Passive Clamp (Divisional)

  • Patent 11218078
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 17/222,512
  • Assignee Rompower Technology Holdings LLC
  • Filling Date 05 Apr 2021
  • Date of Patent 04 Jan 2022
  • #46

Self-Adjusting Current Injection Technology (Continuation)

  • Patent 11165360
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 16/751,747
  • Assignee Rompower Technology Holdings LLC
  • Filling Date 04 Jan 2020
  • Date of Patent 02 Nov 2021
  • #45

Energy Injection in a Resonant Circuit with Initial Conditions

  • Patent 11,152,847
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 15/825647
  • Assignee ROMPOWER TECHNOLOGY HOLDINGS, LLC (Milford, DE)
  • Filling Date 29 Nov 2017
  • Date of Patent 19 Oct 2021
  • #44

Phase-Shifted Full-Bridge Topology with Current Injection (Continuation)

  • Patent 11,146,177
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 16/407905
  • Filling Date 09 May 2019
  • Date of Patent 12 Oct 2021
  • #43

Very High Efficiency Soft Switching Converter AKA the Adjud Converter (Continuation)

  • Patent 10,978,958
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 16/989812
  • Assignee ROMPOWER TECHNOLOGY HOLDINGS, LLC (Milford, DE)
  • Filling Date 10 Aug 2020
  • Date of Patent 13 Apr 2021
  • #42

High Efficiency Passive Clamp

  • Patent 10,972,014
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 16/775967
  • Assignee ROMPOWER TECHNOLOGY HOLDINGS, LLC (Milford, DE)
  • Filling Date 29 Jan 2020
  • Date of Patent 06 Apr 2021
  • #41

Magnetic Structures for Low Leakage Inductance and Very High Efficiency (Continuation)

  • Patent 10,937,590
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 16/368186
  • Assignee ROMPOWER TECHNOLOGY HOLDINGS, LLC (Milford, DE)
  • Filling Date 28 Mar 2019
  • Date of Patent 02 Mar 2021
  • #40

Very High Efficiency Soft Switching Converter AKA the Adjud Converter

  • Patent 10,742,129
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 15/627832
  • Assignee ROMPOWER ENERGY SYSTEMS, INC., Tucson, AZ
  • Filling Date 20 Jun 2017
  • Date of Patent 11 Aug 2020
  • #39

Energy Recovery from the Leakage Inductance of the Transformer

  • Patent 10,651,748
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 16/158202
  • Assignee ROMPOWER TECHNOLOGY HOLDINGS, LLC (Milford, DE)
  • Filling Date 11 Oct 2018
  • Date of Patent 12 May 2020
  • #38

Self-Adjusting Current Technology

  • Patent 10,574,148
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 16/503,432
  • Assignee Rompower Technology Holdings, LLC
  • Filling Date 03 Jul 2019
  • Date of Patent 25 Feb 2020
  • #37

Multiple Cells Magnetic Structure for Wireless Power

  • Patent 10,553,351
  • Status Granted
  • Inventor Jitaru, Ionel / Radulescu, Andrei Ion / Davila, Marco Antonio / Savu, Andrei
  • Application 13/887350
  • Assignee DELTA ELECTRONICS (THAILAND) PUBLIC CO., LTD.
  • Filling Date 05 May 2013
  • Date of Patent 04 Feb 2020
  • #36

Magnetic Structures For Low Leakage Inductance and Very High Efficiency (Taiwan)

  • Patent TWI663611
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application TW107116936
  • Filling Date 19 Mar 2015
  • Date of Patent 21 Jun 2019
  • #35

Phase-Shifted Full-Bridge Topology with Current Injection

  • Patent 10,291,140
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 15/987499
  • Assignee ROMPOWER ENERGY SYSTEMS, INC., Tucson, AZ
  • Filling Date 23 May 2018
  • Date of Patent 14 May 2019
  • #34

Very High Efficiency One Stage Isolated Power Factor Correction Circuit

  • Patent 10,205,398
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 15/463856
  • Assignee ROMPOWER TECHNOLOGY HOLDINGS, LLC (Milford, DE)
  • Filling Date 20 Mar 2017
  • Date of Patent 12 Feb 2019
  • #33

Soft Switching on All Switching Elements Converter Through Current Shaping “Bucharest Converter”

  • Patent 10,205,397
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 14/796204
  • Assignee ROMPOWER TECHNOLOGY HOLDINGS, LLC (Milford, DE)
  • Filling Date 10 Jul 2015
  • Date of Patent 12 Feb 2019
  • #32

Ideal Switch Bridgeless PFC

  • Patent 10,186,955
  • Status Granted
  • Inventor Jitaru, Ionel / Davila, Marco Antonio / Tamas, Cosmin Andrei
  • Application 15/284207
  • Assignee ROMPOWER TECHNOLOGY HOLDINGS, LLC (Milford, DE)
  • Filling Date 03 Oct 2016
  • Date of Patent 22 Jan 2019
  • #31

Method and Apparatus for Load Identification

  • Patent 10,146,281
  • Status Granted
  • Inventor Jitaru, Ionel / Bucheru, Bogdan Tudor / Davila, Marco
  • Application 13/199477
  • Assignee DELTA ELECTRONICS THAILAND PUBLIC COMPANY LIMITED
  • Filling Date 31 Aug 2011
  • Date of Patent 04 Dec 2018
  • #30

Soft Switching Converter by Steering the Magnetizing Current

  • Patent 10,103,639
  • Status Granted
  • Inventor Jitaru, Ionel / Davila, Marco Antonio
  • Application 14/274701
  • Assignee ROMPOWER ENERGY SYSTEMS, INC., Tucson, AZ
  • Filling Date 10 May 2014
  • Date of Patent 16 Oct 2018
  • #29

True Soft Switching by Timed Steering of a Current Source

  • Patent 10,050,545
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 15/899243
  • Assignee ROMPOWER ENERGY SYSTEMS, INC., Tucson, AZ
  • Filling Date 19 Feb 2018
  • Date of Patent 14 Aug 2018
  • #28

Method and Apparatus for Obtaining Soft Switching in all the Switching Elements Through Current Shaping and Intelligent Control

  • Patent 9,985,546
  • Status Granted
  • Inventor Jitaru, Ionel Dan
  • Application 15/068,598
  • Assignee ROMPOWER TECHNOLOGY HOLDINGS, LLC (Milford, DE)
  • Filling Date 13 Mar 2016
  • Date of Patent 29 May 2018
  • #27

Soft Transition on All Switching Elements Two Transistors Forward Converter

  • Patent US 9,899,929
  • Status Granted
  • Inventor Jitaru, Ionel / Davila, Marco Antonio
  • Application 14/890088
  • Assignee Rompower Energy Systems, Inc., Tucson, AZ (US)
  • Filling Date 12 May 2014
  • Date of Patent 20 Feb 2018
  • #26

Magnetic Configuration for High Efficiency Power Processing

  • Patent 9,196,417
  • Status Granted
  • Inventor Jitaru, Ionel Dan / Davila, Marco Antonio / Savu, Andrei / Radulescu, Andrei Ion
  • Application 13/887346
  • Assignee DET International Holding Limited (Grand Cayman, KY)
  • Filling Date 05 May 2013
  • Date of Patent 24 Nov 2015
  • #25

High Efficiency Flyback Converter

  • Patent 7,764,518
  • Status Granted
  • Inventor Jitaru, Ionel D.
  • Application 10/511232
  • Assignee DET International Holding Limited Grand Cayman (KY)
  • Filling Date 11 Apr 2003
  • Date of Patent 27 Jul 2010
  • #24

DC-DC Switching Converter Device

  • Patent 7,719,137
  • Status Granted
  • Inventor Jitaru, Ionel D. / Bucheru; Bogdan T. / Bucheru; Bogdan T. / Davila, Jr.; Marco A.
  • Application 10/548393
  • Assignee DET International Holding Limited Grand Cayman (KY)
  • Filling Date 10 Mar 2004
  • Date of Patent 18 May 2010
  • #23

Method and Apparatus for Controlling Synchronous Rectifier

  • Patent 7,558,082
  • Status Granted
  • Inventor Jitaru, Ionel D.
  • Application 10/509983
  • Assignee DET International Holding Limited Grand Cayman (KY)
  • Filling Date 28 Mar 2003
  • Date of Patent 07 Jul 2009
  • #22

Soft Switching High Efficiency Flyback Converter

  • Patent 7,450,402
  • Status Granted
  • Inventor Jitaru, Ionel D.
  • Application 10/511117
  • Assignee DET International Holding Limited Grand Cayman (KY)
  • Filling Date 11 Apr 2003
  • Date of Patent 11 Nov 2008
  • #21

Active Snubber

  • Patent 7,408,793
  • Status Granted
  • Inventor Jitaru, Ionel D. / Casaru, George
  • Application 10/545567
  • Assignee DET International Holding Limited Grand Cayman (KY)
  • Filling Date 11 Feb 2003
  • Date of Patent 05 Aug 2008
  • #20

Low Profile Magnetic Element

  • Patent 7,295,094
  • Status Granted
  • Inventor Jitaru, Ionel D. / Davila, Marco A.
  • Application 10/512128
  • Assignee DET International Holding Limited Grand Cayman (KY)
  • Filling Date 11 Apr 2003
  • Date of Patent 13 Nov 2007
  • #19

Forward Converter with Controlled Reset

  • Patent 7,012,820
  • Status Granted
  • Inventor Jitaru, Ionel D.
  • Application 10/499850
  • Assignee DET International Holding Limited (KY)
  • Filling Date 20 Dec 2002
  • Date of Patent 14 Mar 2006
  • #18

Soft Switching Converter Using Current Shaping

  • Patent 7,009,850
  • Status Granted
  • Inventor Jitaru, Ionel D.
  • Application 10/511114
  • Assignee DET International Holding Limited Grand Cayman (CY)
  • Filling Date 11 Apr 2003
  • Date of Patent 07 Mar 2006
  • #17

Low Noise Full Integrated Multilayers Magnetic For Power Converters

  • Patent 6,980,074
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 09/434985
  • Assignee Delta Energy Systems (Switzerland) AG (Bern-Bumplitz, CH)
  • Filling Date 05 Nov 1999
  • Date of Patent 27 Dec 2005
  • #16

Planar Inductive Element

  • Patent 6,967,553
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 10/381161
  • Assignee Delta Energy Systems (Switzerland) AG (CH)
  • Filling Date 11 Aug 2003
  • Date of Patent 22 Nov 2005
  • #15

Soft Transition Converter

  • Patent 6,862,195
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 09/260478
  • Assignee Delta Energy Systems (Switzerland) AG (CH)
  • Filling Date 01 Mar 1999
  • Date of Patent 01 Mar 2005
  • #14

Modularized Power Supply

  • Patent 6,731,523
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 09/737500
  • Assignee Ascom Energy Systems, AG (Berne, CH)
  • Filling Date 13 Dec 2000
  • Date of Patent 04 May 2004
  • #13

Method And Apparatus For Forming A Magnetic Component On A Printed Circuit Board

  • Patent 6,489,876
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 09/668620
  • Assignee Ascom Energy Systems, AG (Berne, CH)
  • Filling Date 22 Sep 2000
  • Date of Patent 03 Dec 2002
  • #12

Flux Equalized Transformer Circuit

  • Patent 6,469,486
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 09/542068
  • Assignee Ascom Energy Systems, AG (Berne, CH)
  • Filling Date 03 Apr 2000
  • Date of Patent 22 Oct 2002
  • #11

Component Transformer

  • Patent 6,466,454
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 09/313939
  • Assignee Ascom Energy Systems, AG (Berne, CH)
  • Filling Date 18 May 1999
  • Date of Patent 15 Oct 2002
  • #10

Method And Apparatus For Transmitting A Signal Through A Power Magnetic Structure

  • Patent 6,414,578
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 09/740314
  • Assignee Ascom Energy Systems, AG (Berne, CH)
  • Filling Date 18 Dec 2000
  • Date of Patent 02 Jul 2002
  • #9

Transformer Providing Low Output Voltage

  • Patent 6,400,249
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 09/740315
  • Assignee Ascom Energy Systems, AG (Berne, CH)
  • Filling Date 18 Dec 2000
  • Date of Patent 04 Jun 2002
  • #8

Current Sensor

  • Patent 6,380,727
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 09/113794
  • Assignee Ascom Energy Systems AG (Berne, CH)
  • Filling Date 03 Jul 1998
  • Date of Patent 30 Apr 2002
  • #7

High Power Planar Transformer

  • Patent 6,211,767
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 09/316924
  • Assignee Rompower ( Tucson , AZ )
  • Filling Date 21 May 1999
  • Date of Patent 03 Apr 2001
  • #6

Flux Equalized Transformer Circuit

  • Patent 6,046,918
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 09/310626
  • Assignee Rompower ( Tucson , AZ )
  • Filling Date 12 May 1999
  • Date of Patent 04 Apr 2000
  • #5

Low Noise Full Integrated Multilayers Magnetic For Power Converters

  • Patent 5,990,776
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 08/351943
  • Filling Date 08 Dec 1994
  • Date of Patent 23 Nov 1999
  • #4

Packaging Power Converters

  • Patent 5,973,923
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 09/086365
  • Filling Date 28 May 1998
  • Date of Patent 26 Oct 1999
  • #3

Fixed Frequency Converter Switching At Zero Voltage

  • Patent 5,434,768
  • Status Granted
  • Inventor Jitaru, Ionel / Beldianu, Vasile
  • Application 08/016885
  • Assignee Rompower ( Tucson , AZ )
  • Filling Date 12 Feb 1993
  • Date of Patent 18 Jul 1995
  • #2

Square Wave Converter Having An Improved Zero Voltage Switching Operation

  • Patent 5,231,931
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 07/868924
  • Assignee ITT Corp. ( Secaucus , NJ )
  • Filling Date 15 Apr 1992
  • Date of Patent 27 Jul 1993
  • #1

Fixed Frequency Single Ended Forward Converter Switching At Zero Voltage

  • Patent 5,126,931
  • Status Granted
  • Inventor Jitaru, Ionel
  • Application 07/579,470
  • Assignee ITT Corp. (New York, NY)
  • Filling Date 07 Sep 1990
  • Date of Patent 30 Jun 1992

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