Assignee
SUPERTEX INC
62 granted patents·3 pending applications·2,200 citations·filing 1977–2014
Top patents by PatentIndex Score
65 records- 0198US6958920B2Switching power converter and method of controlling output voltage thereof using predictive sensing of magnetic fluxSUPERTEX INC·Filed 2004·Granted Oct 25, 2005·258 cites·31 claims
- 0298US4345265AMOS Power transistor with improved high-voltage capabilitySUPERTEX INC·Filed 1980·Granted Aug 17, 1982·183 cites·15 claims
- 0398US4145703AHigh power MOS device and fabrication method thereforSUPERTEX INC·Filed 1977·Granted Mar 20, 1979·135 cites·14 claims
- 0496US7561452B2Transformer-isolated flyback converters and methods for regulating output current thereofSUPERTEX INC·Filed 2006·Granted Jul 14, 2009·68 cites·20 claims
- 0596US6940733B2Optimal control of wide conversion ratio switching convertersSUPERTEX INC·Filed 2003·Granted Sep 6, 2005·173 cites·41 claims
- 0696US6781351B2AC/DC cascaded power converters having high DC conversion ratio and improved AC line harmonicsSUPERTEX INC·Filed 2002·Granted Aug 24, 2004·137 cites·20 claims
- 0795US7723926B2Shunting type PWM dimming circuit for individually controlling brightness of series connected LEDS operated at constant current and method thereforSUPERTEX INC·Filed 2007·Granted May 25, 2010·49 cites·8 claims
- 0895US4344081ACombined DMOS and a vertical bipolar transistor device and fabrication method thereforSUPERTEX INC·Filed 1980·Granted Aug 10, 1982·159 cites·4 claims
- 0993US6169391B1Device for converting high voltage alternating current to low voltage direct currentSUPERTEX INC·Filed 1999·Granted Jan 2, 2001·137 cites·20 claims
- 1092US7564263B2High-speed logic signal level shifterSUPERTEX INC·Filed 2006·Granted Jul 21, 2009·26 cites·10 claims
- 1190US8013640B1Programmable ultrasound transmit beamformer integrated circuit and methodSUPERTEX INC·Filed 2009·Granted Sep 6, 2011·25 cites·20 claims
- 1290US7956653B1Complementary high voltage switched current source integrated circuitSUPERTEX INC·Filed 2009·Granted Jun 7, 2011·16 cites·5 claims
- 1390US7498754B2Architecture for driving multiple loads at constant currentSUPERTEX INC·Filed 2007·Granted Mar 3, 2009·35 cites·13 claims
- 1490US6525515B1Feedback apparatus and method for adaptively controlling power supplied to a hot-pluggable subsystemSUPERTEX INC·Filed 2001·Granted Feb 25, 2003·60 cites·49 claims
- 1590US6304461B1DC power converter having bipolar output and bi-directional reactive current transferSUPERTEX INC·Filed 2000·Granted Oct 16, 2001·85 cites·16 claims
- 1689US4393391APower MOS transistor with a plurality of longitudinal grooves to increase channel conducting areaSUPERTEX INC·Filed 1980·Granted Jul 12, 1983·47 cites·5 claims
- 1788US8358090B1Dimmer circuit for transformer—isolated LED driver and method thereforSUPERTEX INC·Filed 2010·Granted Jan 22, 2013·10 cites·22 claims
- 1888US4402003AComposite MOS/bipolar power deviceSUPERTEX INC·Filed 1981·Granted Aug 30, 1983·43 cites·15 claims
- 1987US7863836B2Control circuit and method for regulating average inductor current in a switching converterSUPERTEX INC·Filed 2008·Granted Jan 4, 2011·15 cites·18 claims
- 2086US9000674B2Multiple stage sequential current regulatorSUPERTEX INC·Filed 2014·Granted Apr 7, 2015·6 cites·23 claims
- 2184US7977820B2Ultrasound transmit pulse generatorSUPERTEX INC·Filed 2009·Granted Jul 12, 2011·14 cites·30 claims
- 2284US4398339AFabrication method for high power MOS deviceSUPERTEX INC·Filed 1981·Granted Aug 16, 1983·37 cites·10 claims
- 2382US7986178B2Pulse width modulation driver for electroactive lensSUPERTEX INC·Filed 2008·Granted Jul 26, 2011·11 cites·19 claims
- 2479US7813048B2Inductorless electroactive lens driver and systemSUPERTEX INC·Filed 2008·Granted Oct 12, 2010·15 cites·29 claims
- 2579US7513873B2Low-noise ultrasound method and beamformer system for doppler processingSUPERTEX INC·Filed 2005·Granted Apr 7, 2009·22 cites·17 claims
- 2679US6917504B2Apparatus and method for adaptively controlling power supplied to a hot-pluggable subsystemSUPERTEX INC·Filed 2001·Granted Jul 12, 2005·34 cites·25 claims
- 2779US5815383AHigh voltage start-up circuit and method thereforSUPERTEX INC·Filed 1996·Granted Sep 29, 1998·52 cites·15 claims
- 2878US5729418AHigh voltage current limiting protection circuit and method thereforSUPERTEX INC·Filed 1996·Granted Mar 17, 1998·48 cites·22 claims
- 2976US6667583B2Method and apparatus for efficiently driving a low-voltage device from a wide-range input supplySUPERTEX INC·Filed 2002·Granted Dec 23, 2003·41 cites·33 claims
- 3074US5171705ASelf-aligned structure and process for DMOS transistorSUPERTEX INC·Filed 1991·Granted Dec 15, 1992·37 cites·5 claims
- 3173US7480191B2High speed logic level shifterSUPERTEX INC·Filed 2006·Granted Jan 20, 2009·7 cites·19 claims
- 3273US6710773B2Inductorless method and apparatus for driving electroluminescent panelsSUPERTEX INC·Filed 2001·Granted Mar 23, 2004·18 cites·13 claims
- 3372US7948315B2Low noise binary-coded gain amplifier and method for time-gain compensation in medical ultrasound imagingSUPERTEX INC·Filed 2009·Granted May 24, 2011·6 cites·8 claims
- 3471US7554378B2Fast DC coupled level translatorSUPERTEX INC·Filed 2007·Granted Jun 30, 2009·7 cites·19 claims
- 3571US7538581B2Fast AC coupled level translatorSUPERTEX INC·Filed 2007·Granted May 26, 2009·7 cites·20 claims
- 3668US6841950B1Dimmable electrolumanescent lamp drivers and method thereforSUPERTEX INC·Filed 2003·Granted Jan 11, 2005·13 cites·23 claims
- 3767US6992509B2Switched-capacitor sample/hold having reduced amplifier slew-rate and settling time requirementsSUPERTEX INC·Filed 2003·Granted Jan 31, 2006·20 cites·15 claims
- 3866US7362253B2Introduction to R2RC D/A converterSUPERTEX INC·Filed 2006·Granted Apr 22, 2008·8 cites·14 claims
- 3965US9584009B2Line current reference generatorSUPERTEX INC·Filed 2013·Granted Feb 28, 2017·2 cites·19 claims
- 4065US9448575B2Bipolar transistor adjustable shunt regulator circuitSUPERTEX INC·Filed 2013·Granted Sep 20, 2016·2 cites·5 claims
- 4164US9621021B2Auxiliary power supplies in parallel with a switch of a switching regulatorSUPERTEX INC·Filed 2013·Granted Apr 11, 2017·2 cites·28 claims
- 4264US9246378B2Method and apparatus for extending the power output range of a power converter used for a lighting systemSUPERTEX INC·Filed 2013·Granted Jan 26, 2016·1 cites·23 claims
- 4363US7336122B2Low power high side current monitor which operates at high voltages and method thereforSUPERTEX INC·Filed 2005·Granted Feb 26, 2008·8 cites·8 claims
- 4462US7893714B2High voltage analog multiplex switch integrated circuit architectureSUPERTEX INC·Filed 2009·Granted Feb 22, 2011·4 cites·8 claims
- 4560US7330364B2Device for converting high voltage alternating current (AC) to low voltage direct current (DC) and method thereforSUPERTEX INC·Filed 2004·Granted Feb 12, 2008·14 cites·17 claims
- 4658US4937477AIntegrated mos high-voltage level-translation circuit, structure and methodSUPERTEX INC·Filed 1988·Granted Jun 26, 1990·17 cites·8 claims
- 4757US7659756B2MOSFET transistor amplifier with controlled output currentSUPERTEX INC·Filed 2006·Granted Feb 9, 2010·4 cites·15 claims
- 4855US6087863AMethod for improving the efficiency of discharging capacitive loads in H-bridge switching networksSUPERTEX INC·Filed 1998·Granted Jul 11, 2000·23 cites·17 claims
- 4954US4344002ADetection circuit and structure thereforSUPERTEX INC·Filed 1979·Granted Aug 10, 1982·12 cites·3 claims
- 5053US9837889B2Power converter with inductance invarianceSUPERTEX INC·Filed 2013·Granted Dec 5, 2017·0 cites·3 claims
Showing the top 50 of 65 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when SUPERTEX INC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →