Inventor

Thomas J. Ribarich

Inventor

Laguna Beach, CA, US

Overview

1995–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 91 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H05Bprimary

H05BElectric heating30%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications20%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems14%

H03KPulse technique9%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

G05FSystems for regulating electric or magnetic variables4%

H01LSemiconductor devices2%

H03FAmplifiers2%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h102%

H01JElectric discharge tubes or discharge lamps1%

PatentTitleYear

10,931,200Current detection FET and resonant converter using the FET2021 10,833,589Power transistor control signal gating2020 10,778,219Level shifting in a GaN half bridge circuit2020 10,666,147Resonant converter control based on zero current detection2020 10,536,140Half bridge and oscillator power integrated circuit2020 10,404,256Capacitively coupled level shifter2019 10,224,817Power transistor control signal gating2019 10,205,380Power converter with tank circuit and over-voltage protection2019 10,205,447Pulse driven power FET2019 10,193,554Capacitively coupled level shifter2019 10,044,350Power FET driver2018 9,929,652'GaN FET with integrated driver and slew rate control'2018 9,837,904Voltage converter with VCC-less RDSon current sensing circuit2017 9,831,867Half bridge driver circuits2017 9,712,050'Power converter utilizing a resonant half-bridge and charge pump circuit'2017 9,578,692'Power converter with tank circuit and over-voltage protection'2017 9,453,859'Voltage converter with VCC-Less RDSon current sensing circuit'2016 9,424,741'Combined sense signal generation and detection'2016 9,295,124'System using shunt circuits to selectively bypass open loads'2016 9,244,476'Electronic ballast with power factor correction'2016 8,963,442'Driver circuit with an increased power factor'2015 8,866,458'Integrated high-voltage power supply start-up circuit'2014 8,488,353'Control integrated circuit with combined output and input'2013 8,344,658'Cold-cathode fluorescent lamp multiple lamp current matching circuit'2013 8,243,476'HEMT/GaN half-bridge circuit'2012 8,174,855'Power factor correction integrated circuit with critical conduction mode'2012 8,164,272'8-pin PFC and ballast control IC'2012 8,063,588'Single-input control circuit for programming electronic ballast parameters'2011 7,982,408'Cold-cathode fluorescent lamp (CCFL) current control circuit'2011 7,977,893'PFC and ballast control IC'2011 7,976,182'LED lamp assembly with temperature control and method of making the same'2011 7,961,482'Bi-directional HEMT/GaN half-bridge circuit'2011 7,753,558'Compact fluorescent lamp package'2010 7,723,928'Ballast control IC with minimal internal and external components'2010 7,656,096'Hybrid ballast control circuit in a simplified package'2010 7,633,230'Dimmable fluorescent lamp package'2009 RE040843'Electronic dimmable ballast for high intensity discharge lamp'2009 7,557,515'Simplified ballast control circuit'2009 7,554,271'Single stage PFC and power converter circuit'2009 7,525,256'HID buck and full-bridge ballast control IC'2009 7,521,874'Dimmable ballast control integrated circuit'2009 7,463,071'Level-shift circuit utilizing a single level-shift switch'2008 7,436,127'Ballast control circuit'2008 7,420,338'Ballast control IC with minimal internal and external components'2008 7,414,372'Dimming ballast control circuit'2008 7,408,307'Ballast dimming control IC'2008 7,394,208'Simplified electronic ballast circuit and method of operation'2008 7,372,215'Lamp ballast for circuit driving multiple parallel lamps'2008 7,368,879'Pendulum resonant converter and method'2008 7,352,139'Multiple lamp ballast control circuit'2008 RE040016'Power factor correction control circuit'2008 7,298,099'PFC and ballast control IC'2007 7,288,898'Automotive high intensity discharge lamp ballast circuit'2007 7,224,125'Dimmable fluorescent lamp package'2007 7,190,151'High intensity discharge lamp ballast circuit'2007 7,190,208'Self-oscillating full bridge driver IC'2007 7,187,244'Digital light ballast oscillator'2007 7,154,232'Ballast control IC with multi-function feedback sense'2006 7,126,288'Digital electronic ballast control apparatus and method'2006 7,053,724'Dual slope dual range oscillator'2006 7,019,471'Ballast control IC with minimal internal and external components'2006 6,956,336'Single chip ballast control with power factor correction'2005 6,949,888'Dimming ballast control IC with flash suppression circuit'2005 6,934,168'Single stage PFC and power converter unit'2005 6,903,949'Resonant converter with phase delay control'2005 6,900,599'Electronic dimming ballast for cold cathode fluorescent lamp'2005 6,891,339'Adaptive CFL control circuit'2005 6,879,115'Adaptive ballast control IC'2005 6,867,554'Ballast control card'2005 6,807,070'Resonant converter with phase delay control'2004 6,803,730'Single stage PFC ballast control circuit/general purpose power converter'2004 6,771,029'Digital dimming fluorescent ballast'2004 6,734,640'System and method for electronic ballast design'2004 6,639,369'Electronic dimmable ballast for high intensity discharge lamp'2003 6,617,805'Ballast control IC with power factor correction'2003 6,603,274'Dimming ballast for compact fluorescent lamps'2003 6,525,492'Ballast control IC with minimal internal and external components'2003 6,331,755'Circuit for detecting near or below resonance operation of a fluorescent lamp driven by half-bridge circuit'2001 6,316,887'Multiple ignition high intensity discharge ballast control circuit'2001 6,300,777'Lamp ignition detection circuit'2001 6,259,614'Power factor correction control circuit'2001 6,215,253'Inductorless ballast'2001 6,211,623'Fully integrated ballast IC'2001 6,150,773'Model and method for high-frequency electronic ballast design'2000 6,031,342'Universal input warm-start linear ballast'2000 6,008,592'End of lamp life or false lamp detection circuit for an electronic ballast'1999 6,008,593'Closed-loop/dimming ballast controller integrated circuits'1999 6,002,214'Phase detection control circuit for an electronic ballast'1999 5,973,943'Non zero-voltage switching protection circuit'1999 5,563,477'Method for operating a ballast for discharge lamps'1996 5,451,845'Device for protecting a ballast circuit from excess voltage'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–1996Patents assigned to KNOBEL LICHTTECH (2)· patent assignee history

1995–1996Based in Glarus, CH· patent location history

1999–2016Patents assigned to INT RECTIFIER CORP (70)· patent assignee history

1999–2021Based in Laguna Beach, CA, US· patent location history

2011–2016Patents assigned to RIBARICH THOMAS J (7)· patent assignee history

2016–2019Patents assigned to INFINEON TECHNOLOGIES AMERICAS CORP (8)· patent assignee history

2017–2021Patents assigned to NAVITAS SEMICONDUCTOR INC (12)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
INT RECTIFIER CORP	70	1999–2016
NAVITAS SEMICONDUCTOR INC	12	2017–2021
INFINEON TECHNOLOGIES AMERICAS CORP	8	2016–2019
RIBARICH THOMAS Jself	7	2011–2016
KNOBEL LICHTTECH	2	1995–1996

Locations

Location	Patents	Span
Laguna Beach, California, US	89	1999–2021
Glarus, CH	2	1995–1996