Assignee
UNITRODE CORP
US·73 granted patents·3,539 citations·filing 1974–1999
Top patents by PatentIndex Score
73 records- 0198US5767664ABandgap voltage reference based temperature compensation circuitUNITRODE CORP·Filed 1996·Granted Jun 16, 1998·130 cites·17 claims
- 0297US5627460ADC/DC converter having a bootstrapped high side driverUNITRODE CORP·Filed 1994·Granted May 6, 1997·350 cites·14 claims
- 0396US5157269ALoad current sharing circuitUNITRODE CORP·Filed 1991·Granted Oct 20, 1992·133 cites·5 claims
- 0495US5929577ABrushless DC motor controllerUNITRODE CORP·Filed 1997·Granted Jul 27, 1999·122 cites·24 claims
- 0594US5652501AVoltage sensor for detecting cell voltagesUNITRODE CORP·Filed 1994·Granted Jul 29, 1997·277 cites·9 claims
- 0693US4716514ASynchronous power rectifierUNITRODE CORP·Filed 1986·Granted Dec 29, 1987·98 cites·6 claims
- 0792US5422562ASwitching regulator with improved Dynamic responseUNITRODE CORP·Filed 1994·Granted Jun 6, 1995·114 cites·29 claims
- 0890US5581170ABattery protectorUNITRODE CORP·Filed 1995·Granted Dec 3, 1996·169 cites·20 claims
- 0989US6114835AMulti-cell battery pack charge balancing circuitUNITRODE CORP·Filed 1999·Granted Sep 5, 2000·142 cites·25 claims
- 1089US5361041APush-pull amplifierUNITRODE CORP·Filed 1993·Granted Nov 1, 1994·58 cites·18 claims
- 1189US5359276AAutomatic gain selection for high power factorUNITRODE CORP·Filed 1993·Granted Oct 25, 1994·90 cites·10 claims
- 1289US5206540ATransformer isolated drive circuitUNITRODE CORP·Filed 1991·Granted Apr 27, 1993·102 cites·13 claims
- 1387US6144245AAdaptive leading edge blanking circuit to eliminate spike on power switching transistor current sense signalUNITRODE CORP·Filed 1998·Granted Nov 7, 2000·59 cites·4 claims
- 1487US5663878AApparatus and method for generating a low frequency AC signalUNITRODE CORP·Filed 1996·Granted Sep 2, 1997·108 cites·12 claims
- 1586US6344959B1Method for sensing the output voltage of a charge pump circuit without applying a load to the output stageUNITRODE CORP·Filed 1999·Granted Feb 5, 2002·96 cites·14 claims
- 1684US5751139AMultiplexing power converterUNITRODE CORP·Filed 1997·Granted May 12, 1998·100 cites·45 claims
- 1784US5554986ADigital to analog coverter having multiple resistor ladder stagesUNITRODE CORP·Filed 1994·Granted Sep 10, 1996·44 cites·17 claims
- 1882US5793596AFloating positive circuit breakerUNITRODE CORP·Filed 1996·Granted Aug 11, 1998·56 cites·10 claims
- 1981US5648780ADigital to analog converterUNITRODE CORP·Filed 1995·Granted Jul 15, 1997·42 cites·14 claims
- 2080US5969498AInduction motor controllerUNITRODE CORP·Filed 1997·Granted Oct 19, 1999·46 cites·23 claims
- 2180US5004705AInverted epitaxial processUNITRODE CORP·Filed 1989·Granted Apr 2, 1991·54 cites·69 claims
- 2279US5847942AController for isolated boost converter with improved detection of RMS input voltage for distortion reduction and having load-dependent overlap conduction delay of shunt MOSFETUNITRODE CORP·Filed 1997·Granted Dec 8, 1998·64 cites·21 claims
- 2379US5710697APower supply controller having frequency foldback and volt-second duty cycle clamp featuresUNITRODE CORP·Filed 1996·Granted Jan 20, 1998·65 cites·21 claims
- 2479US4795961ALow-noise voltage referenceUNITRODE CORP·Filed 1987·Granted Jan 3, 1989·41 cites·8 claims
- 2578US5581433AElectronic circuit breakerUNITRODE CORP·Filed 1994·Granted Dec 3, 1996·37 cites·19 claims
- 2676US5504416ABattery charger circuit including battery temperature controlUNITRODE CORP·Filed 1993·Granted Apr 2, 1996·65 cites·25 claims
- 2776US5416354AInverted epitaxial process semiconductor devicesUNITRODE CORP·Filed 1994·Granted May 16, 1995·61 cites·7 claims
- 2872US5691889AController having feed-forward and synchronization featuresUNITRODE CORP·Filed 1995·Granted Nov 25, 1997·46 cites·4 claims
- 2970US5532626AOff-line controller having a line voltage detector and a switched current bootstrap circuitUNITRODE CORP·Filed 1995·Granted Jul 2, 1996·32 cites·12 claims
- 3070US5291384APhase shifted switching controllerUNITRODE CORP·Filed 1992·Granted Mar 1, 1994·43 cites·11 claims
- 3170US5148054AHigh accuracy MOSFET-switched sampling circuitUNITRODE CORP·Filed 1991·Granted Sep 15, 1992·24 cites·20 claims
- 3270US5098861AMethod of processing a semiconductor substrate including silicide bondingUNITRODE CORP·Filed 1991·Granted Mar 24, 1992·49 cites·8 claims
- 3368US4626478AElectronic circuit device components having integral spacers providing uniform thickness bonding filmUNITRODE CORP·Filed 1984·Granted Dec 2, 1986·30 cites·11 claims
- 3467US5451860ALow current bandgap reference voltage circuitUNITRODE CORP·Filed 1993·Granted Sep 19, 1995·24 cites·17 claims
- 3567US4901120AStructure for fast-recovery bipolar devicesUNITRODE CORP·Filed 1987·Granted Feb 13, 1990·28 cites·9 claims
- 3665US5414342AVoltage mode pulse width modulation controllerUNITRODE CORP·Filed 1993·Granted May 9, 1995·33 cites·13 claims
- 3763US5585741AImpedance emulatorUNITRODE CORP·Filed 1995·Granted Dec 17, 1996·60 cites·33 claims
- 3863US5262685AHigh-speed, low power auto-zeroed sampling circuitUNITRODE CORP·Filed 1991·Granted Nov 16, 1993·19 cites·14 claims
- 3962US5493235AProgrammable and stable threshold CMOS inverterUNITRODE CORP·Filed 1994·Granted Feb 20, 1996·16 cites·20 claims
- 4061US5338979AControllable bus terminatorUNITRODE CORP·Filed 1993·Granted Aug 16, 1994·34 cites·20 claims
- 4160US4590391AMulti-input zero offset comparatorUNITRODE CORP·Filed 1983·Granted May 20, 1986·16 cites·7 claims
- 4260US4551353AMethod for reducing leakage currents in semiconductor devicesUNITRODE CORP·Filed 1984·Granted Nov 5, 1985·21 cites·15 claims
- 4358US4538168AHigh power semiconductor packageUNITRODE CORP·Filed 1984·Granted Aug 27, 1985·22 cites·13 claims
- 4458US4514587AHigh power semiconductor packageUNITRODE CORP·Filed 1981·Granted Apr 30, 1985·22 cites·14 claims
- 4558US3935345AElectroless plating of peroxide forming metalsUNITRODE CORP·Filed 1974·Granted Jan 27, 1976·8 cites·45 claims
- 4657US5214322AHigh voltage cmos power driverUNITRODE CORP·Filed 1991·Granted May 25, 1993·13 cites·11 claims
- 4756US5336948AActive negation emulatorUNITRODE CORP·Filed 1992·Granted Aug 9, 1994·14 cites·37 claims
- 4854US5886487ADC motor driver having output FETS that conduct to rectify output overvoltage and undervoltage transientsUNITRODE CORP·Filed 1998·Granted Mar 23, 1999·14 cites·13 claims
- 4954US4849656APower-on detection circuitUNITRODE CORP·Filed 1987·Granted Jul 18, 1989·9 cites·9 claims
- 5053US4882533ALinear integrated circuit voltage drop generator having a base-10-emitter voltage independent current source thereinUNITRODE CORP·Filed 1989·Granted Nov 21, 1989·13 cites·13 claims
Showing the top 50 of 73 patent records by PatentIndex Score.
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