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RON HULFACHOR
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NASHUA, NH, US
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Patents Grants
last 30 patents
Information
Patent Grant
Isolated switched-mode power converter having secondary-side rectif...
Patent number
11,632,053
Issue date
Apr 18, 2023
Infineon Technologies Austria AG
Sujata Sen
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Circuits and methods for secondary-side rectified voltage sensing i...
Patent number
10,770,983
Issue date
Sep 8, 2020
Infineon Technologies Austria AG
Sujata Sen
G01 - MEASURING TESTING
Information
Patent Grant
5 volt tolerant voltage regulator
Patent number
8,593,119
Issue date
Nov 26, 2013
Silicon Laboratories, Inc.
Ron Hulfachor
G05 - CONTROLLING REGULATING
Information
Patent Grant
Master/slave power supply switch driver circuitry
Patent number
8,558,524
Issue date
Oct 15, 2013
International Rectifier Corporation
Robert T. Carroll
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Switching power supply gate driver
Patent number
8,476,939
Issue date
Jul 2, 2013
International Rectifier Corporation
Anthony B. Candage
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Multi-mode pin usage in a power supply control integrated circuit
Patent number
8,412,923
Issue date
Apr 2, 2013
International Rectifier Corporation
Robert T. Carroll
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
5 volt tolerant voltage regulator
Patent number
8,049,475
Issue date
Nov 1, 2011
Silicon Laboratories Inc.
Ron Hulfachor
G05 - CONTROLLING REGULATING
Information
Patent Grant
Programmable phase-locked loop responsive to a selected bandwidth a...
Patent number
7,443,250
Issue date
Oct 28, 2008
Silicon Laboratories Inc.
Srisai R. Seethamraju
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Technique for switching between input clocks in a phase-locked loop
Patent number
7,405,628
Issue date
Jul 29, 2008
Silicon Laboratories Inc.
Ronald B. Hulfachor
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Tunable high-speed frequency divider
Patent number
7,348,818
Issue date
Mar 25, 2008
Silicon Laboratories Inc.
Ronald B. Hulfachor
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Active power/ground ESD trigger
Patent number
7,079,369
Issue date
Jul 18, 2006
Fairchild Semiconductor Corporation
Ronald B. Hulfachor
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Circuit to linearize gain of a voltage controlled oscillator over w...
Patent number
7,030,669
Issue date
Apr 18, 2006
Fairchild Semiconductor Corporation
Ronald B. Hulfachor
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Circuitry to reduce PLL lock acquisition time
Patent number
6,940,356
Issue date
Sep 6, 2005
Fairchild Semiconductor Corporation
James J. McDonald, II
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Method and structure for BiCMOS isolated NMOS transistor
Patent number
6,927,460
Issue date
Aug 9, 2005
Fairchild Semiconductor Corporation
Steven M. Leibiger
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Capacitively coupled current boost circuitry for integrated voltage...
Patent number
6,894,553
Issue date
May 17, 2005
Fairchild Semiconductor Corporation
Ronald B. Hulfachor
G05 - CONTROLLING REGULATING
Information
Patent Grant
Triggering of an ESD NMOS through the use of an N-type buried layer
Patent number
6,855,964
Issue date
Feb 15, 2005
Farichild Semiconductor Corporation
Ronald B. Hulfachor
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
PLL for clock recovery with initialization sequence
Patent number
6,794,945
Issue date
Sep 21, 2004
Fairchild Semiconductor Corporation
James J. McDonald
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of fabricating Schottky diode and related structure
Patent number
6,261,932
Issue date
Jul 17, 2001
Fairchild Semiconductor Corp.
Ronald Hulfachor
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for after gate implant of threshold adjust with low impact o...
Patent number
6,117,717
Issue date
Sep 12, 2000
Fairchild Semiconductor Corporation
Thomas A. Carbone
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
LDD structure for ESD protection and method of fabrication
Patent number
6,100,125
Issue date
Aug 8, 2000
Fairchild Semiconductor Corp.
Ronald Brett Hulfachor
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
ISOLATED SWITCHED-MODE POWER CONVERTER HAVING SECONDARY-SIDE RECTIF...
Publication number
20200395864
Publication date
Dec 17, 2020
Infineon Technologies Austria AG
Sujata Sen
G01 - MEASURING TESTING
Information
Patent Application
Circuits and Methods for Secondary-Side Rectified Voltage Sensing i...
Publication number
20200186047
Publication date
Jun 11, 2020
Sujata Sen
G01 - MEASURING TESTING
Information
Patent Application
MASTER/SLAVE POWER SUPPLY SWITCH DRIVER CIRCUITRY
Publication number
20120091977
Publication date
Apr 19, 2012
Robert T. Carroll
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
5 Volt Tolerant Voltage Regulator
Publication number
20120019221
Publication date
Jan 26, 2012
Ron Hulfachor
G05 - CONTROLLING REGULATING
Information
Patent Application
ELECTRICAL CIRCUITRY FOR USE IN VOLTAGE CONTROLLERS
Publication number
20110004748
Publication date
Jan 6, 2011
Robert T. Carroll
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
5 VOLT TOLERANT VOLTAGE REGULATOR
Publication number
20090243570
Publication date
Oct 1, 2009
Silicon Laboratories Inc.
RON HULFACHOR
G05 - CONTROLLING REGULATING
Information
Patent Application
PROGRAMMABLE PHASE-LOCKED LOOP RESPONSIVE TO A SELECTED BANDWIDTH A...
Publication number
20080079510
Publication date
Apr 3, 2008
Srisai R. Seethamraju
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
TECHNIQUE FOR SWITCHING BETWEEN INPUT CLOCKS IN A PHASE-LOCKED LOOP
Publication number
20080079501
Publication date
Apr 3, 2008
Ronald B. Hulfachor
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Tunable high-speed frequency divider
Publication number
20070001719
Publication date
Jan 4, 2007
Silicon Laboratories Inc.
Ron Hulfachor
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Circuit to linearize gain of a voltage controlled oscillator over w...
Publication number
20040164815
Publication date
Aug 26, 2004
Ronald B. Hulfachor
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Circuitry to reduce PLL lock acquisition time
Publication number
20040160281
Publication date
Aug 19, 2004
James J. McDonald
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Capacitively coupled current boost circuitry for integrated voltage...
Publication number
20040021503
Publication date
Feb 5, 2004
Ronald B. Hulfachor
G05 - CONTROLLING REGULATING
Information
Patent Application
PLL for clock recovery with initialization sequence
Publication number
20030193374
Publication date
Oct 16, 2003
James J. McDonald
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Triggering of an ESD NMOS through the use of an N-type buried layer
Publication number
20030085429
Publication date
May 8, 2003
Ronald B. Hulfachor
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Active power/ground ESD trigger
Publication number
20030026054
Publication date
Feb 6, 2003
Ronald B. Hulfachor
H01 - BASIC ELECTRIC ELEMENTS