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Power Electronics Corporate Genealogy
ada cheng Page 1 6/13/11
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A-SystemsABBAcbel PolytechAcopian TechnicalActive PowerActive SemiconductorAdvanced Analogic TechAllgemeine Elektricitat Gesellschaft (AEG)AEG Power SolutionsAlcatel-LucentAllegro MicrosystemsAmelco SemiconductorAmerican MicrosystemsAmerican Power ConversionAnalog DevicesApex MicrotechnologyAPtronicApplied Plasma PhysicsArgus TechnologyComputer ProductsAsea Allmanna Svenska Elektrika AktiebolagetASEA Power SystemsAstec PowerAstrodyneAultAura SystemsAutomatic ElectricBalmarBasler Electric CompanyBear Power SuppliesBeckman InstrumentsBelFuse/BelPowerBell LabsBellnixBenchmarq MicroelectronicsBendixBest Power TechnologyBeta DyneBias Power TechnologyBikorBoschert Inc.Bothhand EnterpriseBournsBrown Boveri & CieBurle TechnologiesBurr BrownBussmannC&D TechnologiesCalex ManufacturingCatalyst SemiconductorCherokee InternationalCherry SemiconductorChicony Electronics
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Power Electronics Corporate Genealogy
ada cheng Page 2 6/13/11
Original Name 1876
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Patil SystemsClevite Transistor ProductsClaude LyonsCogniPowerGTI Power SystemsCombined TechnologiesCommunication Instruments Inc (CII Technologies)Communications & Power IndustriesCompagnie des Freins et SignauxCondor DC Power SuppliesControlled PowerC&E CooperCooper-HewittELCOCPI InternationalCreeCutter Electric & ManufacturingCyberPower SystemsDallas SemiconductorDelcoDelta ElectronicsDensei-Lambdadi/dtDigitronicsDiodesETA Electronics IndustryETM ElectromaticTobersen Gear and AxleEdal IndustriesEdison General Electric Merged with Thomson-Houston to form GEEdison Light Company Merged with other Edison companies to form Edison General ElectricElantec SemiconductorElectromanufactuas, S.A. de C.V. (EMSA)Electronic Transistors (ETCo)Electronic SpecialistsElectrowattEltek EnergyEltek SemiconductorEltek ValereEmerson Network PowerEMRISEEnerproEricsson EUPECExarExide Electronics GroupExide TechnologiesFairchild SemiconductorFalcon ElectricFayetteville TransformerFerranti LtdFerranti Hammond Electric LightFerranti, Thompson and Ince
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Power Electronics Corporate Genealogy
ada cheng Page 3 6/13/11
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Freescale SemiconductorFriemann & Wolf Duisburg (FRIWO)Friemann & Wolf Gertebau (FRIWO)FSP GroupFurman SoundGaia ConverterGalaxy PowerGEC Plessey SemiconductorsGeneral Atomics Energy ProductsGeneral ElectricGeneral InstrumentsGeneral MicroelectronicsGeneral SemiconductorGeneral Telephone and ElectronicsGeneral TransistorGeneral TransistorGermanium ProductsGould Storage BatteryHackbridge and Hewittic Electric Co., Ltd.Harris (Semiconductor)Electric Heating ApparatusHind Rectifiers LtdHipro ElectronicsHitachiHoneywellHuntkey Enterprise GroupHytek MicrosystemsComputing-Tabulating-Recording (C-T-R)InfineonInterdesignInternational RectifierIntersilInvensysITE ImperialIXYSiWattJenkins Electric CompanyJJ ElectronicKearneyKemetKepcoKyle CorporationLambda ElectronicsLeader ElectronicsLiebertLine MaterialLineage PowerLinear TechnologyLite-On TechnologyLittlefuseLitton Engineering LaboratoriesMagnetekMarvell Technology
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Power Electronics Corporate Genealogy
ada cheng Page 4 6/13/11
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Maxim Integrated ProductsMaxwell LaboratoriesMcGraw ElectricMcGraw-EdisonMean Well EnterprisesMicrelMicro-RelMicrochip TechnologyMicro LinearMicroPlanet TechnologyMicrosemiconductorMitelMitsubishi ElectricMobiletron ElectronicsMolectro ScienceMonolithic Power SystemsMotorolaMS KennedyMurata ManufacturingNatel EngineeringNational SemiconductorNational Union RadioNEMIC (Nippon Electronic Memory Industry Company)NEMIC-LambdaNetPower TechnologiesNXP SemiconductorO2MicroOki Power TechOmniRelON SemiconductorOnLine PowerOptimum Power ConversionOpto 22Oryx TechnologyPacific SemiconductorsPartner TechnologiesPascall ElectronicsPECO IIPennsylvania Transformer TechnologyPhihongPhilcoPhilco Ford MicroelectronicsPhilips (Semiconductor)PhotonisPicor (Vicor)Pioneer MagneticsPlesseyPower-OnePower ParagonPower TrendsPowerBrightPowerDsinePowerex
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Power Electronics Corporate Genealogy
ada cheng Page 5 6/13/11
Original Name 1876
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Precision MonolithicsPrimarionProgrammable Power SupplyPULSPulse EngineeringQ.R.S. MusicQspeed SemiconductorQuantex CapitalRadiationRadio Corporation of America (RCA)Radio Electronics & Television Manufacturers Association (RETMA)Radio Receptor RaytheonRenesas TechnologyREORheem SemiconductorRO AssociatesRockwell MicroelectronicsRTES. Z. de Ferranti Went into receivershipSalcompSamlex AmericaSamsungToho Sanken ElectricSatCon Technology SB ElectronicsSchneider ElectricSchrackSeletron SetecSGS-FairchildSGS-MicroelecttronicaSGS-ThompsonShindengen Electric ManufacturingShockley TransistorSiebeSiemens Telegraphen-Bau-Anstalt von Siemens & HalskeSigneticsSilcon A/SSilicon General SemiconductorsSilicon LinkSiliconixSipexG-L ElectronicsSL Power ElectronicsSmartPower SystemsSocit Generale Semiconduttori (SGS)Sola ElectricSola/Hevi-DutySolomonSolomon TechnologiesTokyo Tsushin Kogyo (Tokyo Telecommunications Engineering Company)SPD Technologies
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Power Electronics Corporate Genealogy
ada cheng Page 6 6/13/11
Original Name 1876
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Sprague Electric Sprague Electric Railway and Motor CompanyStaco Energy ProductsSummit MicroelectronicsSylvaniaSynqorTamuraTDI PowerTDKTeccor ElectronicsTechnitrolTelcom SemiconductorTeledyneTelefunken ElectronicTEMIC SemiconductorsTeridian Semiconductor (TSC)TESLAcoTexas InstrumentsThalesThomson SemiconducteursThomson-HoustonToshibaTranformer and Electrical Company Ltd (TEC)Transistor ProductsTransitronTRW LSITsi Power TycoTyco ElectronicsUS DigitalUnison TechnologyUnitechUnitrodeValere PowerVarian AssociatesVeecoVicorVincotechVirginia TransformerVishayVolterra SemiconductorVPTWDC TechnologiesWestern Electric ManufacturingWestinghouse Electric & ManufacturingXandexXantrex TechnologyMitel SemiconductorsZeftronicsZetex SemiconductorsZilker Labs
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Power Electronics Corporate Genealogy
ada cheng Page 7 6/13/11
Original Name 1876
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A-SystemsABBAcbel PolytechAcopian TechnicalActive PowerActive SemiconductorAdvanced Analogic TechAllgemeine Elektricitat Gesellschaft (AEG)AEG Power SolutionsAlcatel-LucentAllegro MicrosystemsAmelco SemiconductorAmerican MicrosystemsAmerican Power ConversionAnalog DevicesApex MicrotechnologyAPtronicApplied Plasma PhysicsArgus TechnologyComputer ProductsAseaASEA Power SystemsAstec PowerAstrodyneAultAura SystemsAutomatic ElectricBalmarBasler Electric CompanyBear Power SuppliesBeckman InstrumentsBelFuse/BelPowerBell LabsBellnixBenchmarq MicroelectronicsBendixBest Power TechnologyBeta DyneBias Power TechnologyBikorBoschert Inc.Bothhand EnterpriseBournsBrown Boveri & CieBurle TechnologiesBurr BrownBussmannC&D TechnologiesCalex ManufacturingCatalyst SemiconductorCherokee InternationalCherry SemiconductorChicony Electronics
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Sprague Semiconductor
Merged into General Telephone
Acquired by Max McGraw (later McGraw-Edison)
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Power Electronics Corporate Genealogy
ada cheng Page 8 6/13/11
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Patil SystemsClevite Transistor ProductsClaude LyonsCogniPowerGTI Power SystemsCombined TechnologiesCommunication Instruments Inc (CII Technologies)Communications & Power IndustriesCompagnie des Freins et SignauxCondor DC Power SuppliesControlled PowerC&E CooperCooper-HewittELCOCPI InternationalCreeCutter Electric & ManufacturingCyberPower SystemsDallas SemiconductorDelcoDelta ElectronicsDensei-Lambdadi/dtDigitronicsDiodesETA Electronics IndustryETM ElectromaticTobersen Gear and AxleEdal IndustriesEdison General ElectricEdison Light CompanyElantec SemiconductorElectromanufactuas, S.A. de C.V. (EMSA)Electronic Transistors (ETCo)Electronic SpecialistsElectrowattEltek EnergyEltek SemiconductorEltek ValereEmerson Network PowerEMRISEEnerproEricsson EUPECExarExide Electronics GroupExide TechnologiesFairchild SemiconductorFalcon ElectricFayetteville TransformerFerranti LtdFerranti Hammond Electric LightFerranti, Thompson and Ince
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Cleveland Graphic Bronze; later Clevite Corp.
Acquired by GE
Communication & Power Industries
Changed name to I-T-E Circuit Breaker
Acquired by United Motors
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Power Electronics Corporate Genealogy
ada cheng Page 9 6/13/11
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Freescale SemiconductorFriemann & Wolf Duisburg (FRIWO)Friemann & Wolf Gertebau (FRIWO)FSP GroupFurman SoundGaia ConverterGalaxy PowerGEC Plessey SemiconductorsGeneral Atomics Energy ProductsGeneral ElectricGeneral InstrumentsGeneral MicroelectronicsGeneral SemiconductorGeneral Telephone and ElectronicsGeneral TransistorGeneral TransistorGermanium ProductsGould Storage BatteryHackbridge and Hewittic Electric Co., Ltd.Harris (Semiconductor)Electric Heating ApparatusHind Rectifiers LtdHipro ElectronicsHitachiHoneywellHuntkey Enterprise GroupHytek MicrosystemsComputing-Tabulating-Recording (C-T-R)InfineonInterdesignInternational RectifierIntersilInvensysITE ImperialIXYSiWattJenkins Electric CompanyJJ ElectronicKearneyKemetKepcoKyle CorporationLambda ElectronicsLeader ElectronicsLiebertLine MaterialLineage PowerLinear TechnologyLite-On TechnologyLittlefuseLitton Engineering LaboratoriesMagnetekMarvell Technology
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Merged with Automatic Electric
Kemet Laboratories
Acquired by Line Material
Acquired by McGraw Electric
Litton Industries
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Power Electronics Corporate Genealogy
ada cheng Page 10 6/13/11
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Maxim Integrated ProductsMaxwell LaboratoriesMcGraw ElectricMcGraw-EdisonMean Well EnterprisesMicrelMicro-RelMicrochip TechnologyMicro LinearMicroPlanet TechnologyMicrosemiconductorMitelMitsubishi ElectricMobiletron ElectronicsMolectro ScienceMonolithic Power SystemsMotorolaMS KennedyMurata ManufacturingNatel EngineeringNational SemiconductorNational Union RadioNEMIC (Nippon Electronic Memory Industry Company)NEMIC-LambdaNetPower TechnologiesNXP SemiconductorO2MicroOki Power TechOmniRelON SemiconductorOnLine PowerOptimum Power ConversionOpto 22Oryx TechnologyPacific SemiconductorsPartner TechnologiesPascall ElectronicsPECO IIPennsylvania Transformer TechnologyPhihongPhilcoPhilco Ford MicroelectronicsPhilips (Semiconductor)PhotonisPicor (Vicor)Pioneer MagneticsPlesseyPower-OnePower ParagonPower TrendsPowerBrightPowerDsinePowerex
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Merged with Pennsylvania Transformer
Microsemiconductor
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Hughes Semiconductor Division
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Power Electronics Corporate Genealogy
ada cheng Page 11 6/13/11
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Precision MonolithicsPrimarionProgrammable Power SupplyPULSPulse EngineeringQ.R.S. MusicQspeed SemiconductorQuantex CapitalRadiationRadio Corporation of America (RCA)Radio Electronics & Television Manufacturers Association (RETMA)Radio Receptor RaytheonRenesas TechnologyREORheem SemiconductorRO AssociatesRockwell MicroelectronicsRTES. Z. de FerrantiSalcompSamlex AmericaSamsungToho Sanken ElectricSatCon Technology SB ElectronicsSchneider ElectricSchrackSeletron SetecSGS-FairchildSGS-MicroelecttronicaSGS-ThompsonShindengen Electric ManufacturingShockley TransistorSiebeSiemensSigneticsSilcon A/SSilicon General SemiconductorsSilicon LinkSiliconixSipexG-L ElectronicsSL Power ElectronicsSmartPower SystemsSocit Generale Semiconduttori (SGS)Sola ElectricSola/Hevi-DutySolomonSolomon TechnologiesTokyo Tsushin Kogyo (Tokyo Telecommunications Engineering Company)SPD Technologies
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Tokyo Tsushin Kogyo (Tokyo Telecommunications Engineering Company)
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Power Electronics Corporate Genealogy
ada cheng Page 12 6/13/11
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Sprague ElectricStaco Energy ProductsSummit MicroelectronicsSylvaniaSynqorTamuraTDI PowerTDKTeccor ElectronicsTechnitrolTelcom SemiconductorTeledyneTelefunken ElectronicTEMIC SemiconductorsTeridian Semiconductor (TSC)TESLAcoTexas InstrumentsThalesThomson SemiconducteursThomson-HoustonToshibaTranformer and Electrical Company Ltd (TEC)Transistor ProductsTransitronTRW LSITsi Power TycoTyco ElectronicsUS DigitalUnison TechnologyUnitechUnitrodeValere PowerVarian AssociatesVeecoVicorVincotechVirginia TransformerVishayVolterra SemiconductorVPTWDC TechnologiesWestern Electric ManufacturingWestinghouse Electric & ManufacturingXandexXantrex TechnologyMitel SemiconductorsZeftronicsZetex SemiconductorsZilker Labs
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Power Electronics Corporate Genealogy
ada cheng Page 13 6/13/11
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A-SystemsABBAcbel PolytechAcopian TechnicalActive PowerActive SemiconductorAdvanced Analogic TechAllgemeine Elektricitat Gesellschaft (AEG)AEG Power SolutionsAlcatel-LucentAllegro MicrosystemsAmelco SemiconductorAmerican MicrosystemsAmerican Power ConversionAnalog DevicesApex MicrotechnologyAPtronicApplied Plasma PhysicsArgus TechnologyComputer ProductsAseaASEA Power SystemsAstec PowerAstrodyneAultAura SystemsAutomatic ElectricBalmarBasler Electric CompanyBear Power SuppliesBeckman InstrumentsBelFuse/BelPowerBell LabsBellnixBenchmarq MicroelectronicsBendixBest Power TechnologyBeta DyneBias Power TechnologyBikorBoschert Inc.Bothhand EnterpriseBournsBrown Boveri & CieBurle TechnologiesBurr BrownBussmannC&D TechnologiesCalex ManufacturingCatalyst SemiconductorCherokee InternationalCherry SemiconductorChicony Electronics
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Acquired by Diamler Benz
Sprague Semiconductor Acquired by Sanken ElectricRenamed Teledyne Semiconductor Spun out of Teledyne as Telcom Semiconductor
American Microsystems
Computer Products Renamed Artesyn TechnologiesMerged with Brown Boveri & Cie to form ABB
Merged into General Telephone
BelPower foundedSpun out of AT&T as part of AT&T Technologies; later Lucent Technologies
Acquired by Allied Corp.Acquired by General Signal
? Acquired by Microsemi Acquired by Cherokee InternationalAcquired by Computer Products (Artesyn)
Merged with ASEA to form ABB
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Power Electronics Corporate Genealogy
ada cheng Page 14 6/13/11
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Patil SystemsClevite Transistor ProductsClaude LyonsCogniPowerGTI Power SystemsCombined TechnologiesCommunication Instruments Inc (CII Technologies)Communications & Power IndustriesCompagnie des Freins et SignauxCondor DC Power SuppliesControlled PowerC&E CooperCooper-HewittELCOCPI InternationalCreeCutter Electric & ManufacturingCyberPower SystemsDallas SemiconductorDelcoDelta ElectronicsDensei-Lambdadi/dtDigitronicsDiodesETA Electronics IndustryETM ElectromaticTobersen Gear and AxleEdal IndustriesEdison General ElectricEdison Light CompanyElantec SemiconductorElectromanufactuas, S.A. de C.V. (EMSA)Electronic Transistors (ETCo)Electronic SpecialistsElectrowattEltek EnergyEltek SemiconductorEltek ValereEmerson Network PowerEMRISEEnerproEricsson EUPECExarExide Electronics GroupExide TechnologiesFairchild SemiconductorFalcon ElectricFayetteville TransformerFerranti LtdFerranti Hammond Electric LightFerranti, Thompson and Ince
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Acquired by ITT
Acquired by RTE
Spun out of Varian AssociatesAcquired by Socit de Mcanique et de Chaudronnerie de Pons (SMCP)
Acquired by SL Industries
Merged with Imperial-Eastman to become ITE Imperial
Acquired by Siemens
Merger of Siemens & AEG divisions
Acquired by BTR
Acquired by National SemiconductorSpun out of National Semiconductor
Microelectronics sold to plesseyBankrupt
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Power Electronics Corporate Genealogy
ada cheng Page 15 6/13/11
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Freescale SemiconductorFriemann & Wolf Duisburg (FRIWO)Friemann & Wolf Gertebau (FRIWO)FSP GroupFurman SoundGaia ConverterGalaxy PowerGEC Plessey SemiconductorsGeneral Atomics Energy ProductsGeneral ElectricGeneral InstrumentsGeneral MicroelectronicsGeneral SemiconductorGeneral Telephone and ElectronicsGeneral TransistorGeneral TransistorGermanium ProductsGould Storage BatteryHackbridge and Hewittic Electric Co., Ltd.Harris (Semiconductor)Electric Heating ApparatusHind Rectifiers LtdHipro ElectronicsHitachiHoneywellHuntkey Enterprise GroupHytek MicrosystemsComputing-Tabulating-Recording (C-T-R)InfineonInterdesignInternational RectifierIntersilInvensysITE ImperialIXYSiWattJenkins Electric CompanyJJ ElectronicKearneyKemetKepcoKyle CorporationLambda ElectronicsLeader ElectronicsLiebertLine MaterialLineage PowerLinear TechnologyLite-On TechnologyLittlefuseLitton Engineering LaboratoriesMagnetekMarvell Technology
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Acquired by CEAGChanged name to FRIWO
GE Solid State sold to HarrisSpun out microelectronics group as Microchip Technology
Acquired by Philco-Ford Microelectronics
Merged with Automatic ElectricAcquired by General Instruments
Acquired by Japan Energy
Merged with Sola Electric to form Sola Hevi-DutyAlso known as Hirec
?? Not sure when founded
Monochip brand Acquired by Ferranti
Acquired by GE
Acquired by Gould
Acquired by Cooper Power Systems
Acquired by Veeco
Acquired by Emerson
Litton Industries
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Power Electronics Corporate Genealogy
ada cheng Page 16 6/13/11
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Maxim Integrated ProductsMaxwell LaboratoriesMcGraw ElectricMcGraw-EdisonMean Well EnterprisesMicrelMicro-RelMicrochip TechnologyMicro LinearMicroPlanet TechnologyMicrosemiconductorMitelMitsubishi ElectricMobiletron ElectronicsMolectro ScienceMonolithic Power SystemsMotorolaMS KennedyMurata ManufacturingNatel EngineeringNational SemiconductorNational Union RadioNEMIC (Nippon Electronic Memory Industry Company)NEMIC-LambdaNetPower TechnologiesNXP SemiconductorO2MicroOki Power TechOmniRelON SemiconductorOnLine PowerOptimum Power ConversionOpto 22Oryx TechnologyPacific SemiconductorsPartner TechnologiesPascall ElectronicsPECO IIPennsylvania Transformer TechnologyPhihongPhilcoPhilco Ford MicroelectronicsPhilips (Semiconductor)PhotonisPicor (Vicor)Pioneer MagneticsPlesseyPower-OnePower ParagonPower TrendsPowerBrightPowerDsinePowerex
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Merged with Pennsylvania Transformer
Spun out of General Instruments
Microsemiconductor Changed name to MicrosemiAcquired Siltex for semis start
Spun out Fairchild SemiconductorChanged name to National Union ElectricMerged with Eureka-Williams Acquired by Electrolux
Hughes Semiconductor Division
Acquired by Intelek
Acquired by Ford Motor Company (now Visteon)
Semis began Acquired by GEC & Siemens AG consortium
Acquired by SPD Technologies
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Power Electronics Corporate Genealogy
ada cheng Page 17 6/13/11
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Precision MonolithicsPrimarionProgrammable Power SupplyPULSPulse EngineeringQ.R.S. MusicQspeed SemiconductorQuantex CapitalRadiationRadio Corporation of America (RCA)Radio Electronics & Television Manufacturers Association (RETMA)Radio Receptor RaytheonRenesas TechnologyREORheem SemiconductorRO AssociatesRockwell MicroelectronicsRTES. Z. de FerrantiSalcompSamlex AmericaSamsungToho Sanken ElectricSatCon Technology SB ElectronicsSchneider ElectricSchrackSeletron SetecSGS-FairchildSGS-MicroelecttronicaSGS-ThompsonShindengen Electric ManufacturingShockley TransistorSiebeSiemensSigneticsSilcon A/SSilicon General SemiconductorsSilicon LinkSiliconixSipexG-L ElectronicsSL Power ElectronicsSmartPower SystemsSocit Generale Semiconduttori (SGS)Sola ElectricSola/Hevi-DutySolomonSolomon TechnologiesTokyo Tsushin Kogyo (Tokyo Telecommunications Engineering Company)SPD Technologies
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Acquired by Analog Devices
Acquired by Bel Fuse
Beddis InternationalAcquired by Harris
Acquired by GE
Acquired by General Instruments
Acquired by Raytheon
Acquired by Cooper
Acquired by Nokia
Acquired by Siemens (Electromechanical Components)
Changed name to STMicroelectronics
Acquired by Philips
Acquired by SymmetriCon
Acquired by Vishay
Went public as G-L IndustriesChanged name to SGL Industries Renamed SL Industries
Acquired by Basic Products
Tokyo Tsushin Kogyo (Tokyo Telecommunications Engineering Company)
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Power Electronics Corporate Genealogy
ada cheng Page 18 6/13/11
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Sprague ElectricStaco Energy ProductsSummit MicroelectronicsSylvaniaSynqorTamuraTDI PowerTDKTeccor ElectronicsTechnitrolTelcom SemiconductorTeledyneTelefunken ElectronicTEMIC SemiconductorsTeridian Semiconductor (TSC)TESLAcoTexas InstrumentsThalesThomson SemiconducteursThomson-HoustonToshibaTranformer and Electrical Company Ltd (TEC)Transistor ProductsTransitronTRW LSITsi Power TycoTyco ElectronicsUS DigitalUnison TechnologyUnitechUnitrodeValere PowerVarian AssociatesVeecoVicorVincotechVirginia TransformerVishayVolterra SemiconductorVPTWDC TechnologiesWestern Electric ManufacturingWestinghouse Electric & ManufacturingXandexXantrex TechnologyMitel SemiconductorsZeftronicsZetex SemiconductorsZilker Labs
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Acquired by Vishay
Merged with General Telephone
Merged with SGS Microelectronica to form SGS-Thompson
Acquired by Raytheon Semiconductors
???? Acquired by Siebe
Acquired by Unitech
Lucent Technologies
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Power Electronics Corporate Genealogy
ada cheng Page 19 6/13/11
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A-SystemsABBAcbel PolytechAcopian TechnicalActive PowerActive SemiconductorAdvanced Analogic TechAllgemeine Elektricitat Gesellschaft (AEG)AEG Power SolutionsAlcatel-LucentAllegro MicrosystemsAmelco SemiconductorAmerican MicrosystemsAmerican Power ConversionAnalog DevicesApex MicrotechnologyAPtronicApplied Plasma PhysicsArgus TechnologyComputer ProductsAseaASEA Power SystemsAstec PowerAstrodyneAultAura SystemsAutomatic ElectricBalmarBasler Electric CompanyBear Power SuppliesBeckman InstrumentsBelFuse/BelPowerBell LabsBellnixBenchmarq MicroelectronicsBendixBest Power TechnologyBeta DyneBias Power TechnologyBikorBoschert Inc.Bothhand EnterpriseBournsBrown Boveri & CieBurle TechnologiesBurr BrownBussmannC&D TechnologiesCalex ManufacturingCatalyst SemiconductorCherokee InternationalCherry SemiconductorChicony Electronics
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AEG
Spun out of Teledyne as Telcom SemiconductorRenamed AMI Semiconductor Acquired by On SemiconductorAMI Semiconductor
Acquired by Schneider Electric
Acquired by Cirrus Logic
Renamed Artesyn Technologies Acquired by EmersonArtsyn TechnologiesMerged with Brown Boveri & Cie to form ABB
Acquired by Emerson
Acquired by SL Industries
Spun out of AT&T as part of AT&T Technologies; later Lucent Technologies Lucent Technologies
Acquired by Unitrode
Acquired by General Signal
Acquired by Cherokee International
Acquired by PhotonisAcquired by Texas Instruments
McGraw-Edison
Acquired by On SemiconductorAcquired by Lineage Power
Acquired by On Semiconductor
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Power Electronics Corporate Genealogy
ada cheng Page 20 6/13/11
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Patil SystemsClevite Transistor ProductsClaude LyonsCogniPowerGTI Power SystemsCombined TechnologiesCommunication Instruments Inc (CII Technologies)Communications & Power IndustriesCompagnie des Freins et SignauxCondor DC Power SuppliesControlled PowerC&E CooperCooper-HewittELCOCPI InternationalCreeCutter Electric & ManufacturingCyberPower SystemsDallas SemiconductorDelcoDelta ElectronicsDensei-Lambdadi/dtDigitronicsDiodesETA Electronics IndustryETM ElectromaticTobersen Gear and AxleEdal IndustriesEdison General ElectricEdison Light CompanyElantec SemiconductorElectromanufactuas, S.A. de C.V. (EMSA)Electronic Transistors (ETCo)Electronic SpecialistsElectrowattEltek EnergyEltek SemiconductorEltek ValereEmerson Network PowerEMRISEEnerproEricsson EUPECExarExide Electronics GroupExide TechnologiesFairchild SemiconductorFalcon ElectricFayetteville TransformerFerranti LtdFerranti Hammond Electric LightFerranti, Thompson and Ince
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2009Most Recent NameCirrus Logic
Acquired by FlextronicsColdwatt
Acquired by TycoSpun out of Varian Associates
Acquired by SL Industries
Cooper Industries
Cosel
Acquired by Maxim Integrated Products
Acquired by TDKAcquired by Power-One
Eaton
Acquired by IntersilAcquired by Cooper Power Systems
Acquired by SiemensMerged with Valere Power
Acquired by Infineon
Acquired by BTR
Spun out of National Semiconductor
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Power Electronics Corporate Genealogy
ada cheng Page 21 6/13/11
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Freescale SemiconductorFriemann & Wolf Duisburg (FRIWO)Friemann & Wolf Gertebau (FRIWO)FSP GroupFurman SoundGaia ConverterGalaxy PowerGEC Plessey SemiconductorsGeneral Atomics Energy ProductsGeneral ElectricGeneral InstrumentsGeneral MicroelectronicsGeneral SemiconductorGeneral Telephone and ElectronicsGeneral TransistorGeneral TransistorGermanium ProductsGould Storage BatteryHackbridge and Hewittic Electric Co., Ltd.Harris (Semiconductor)Electric Heating ApparatusHind Rectifiers LtdHipro ElectronicsHitachiHoneywellHuntkey Enterprise GroupHytek MicrosystemsComputing-Tabulating-Recording (C-T-R)InfineonInterdesignInternational RectifierIntersilInvensysITE ImperialIXYSiWattJenkins Electric CompanyJJ ElectronicKearneyKemetKepcoKyle CorporationLambda ElectronicsLeader ElectronicsLiebertLine MaterialLineage PowerLinear TechnologyLite-On TechnologyLittlefuseLitton Engineering LaboratoriesMagnetekMarvell Technology
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2009Most Recent Name
Changed name to FRIWO FRIWO
Acquired by Panamax
Acquired by BelPowerAcquired by Mitel (eventually Zarlink Semiconductors)
Spun out microelectronics group as Microchip TechnologyAcquired by Motorola
Acquired by VishayGTE
Spun out as IntersilMerged with Sola Electric to form Sola Hevi-Duty Hevi-Duty Electric
Acquired by Chicony ElectronicsMerged into Renesas
Acquired by Natel EngineeringIBM
Acquired by Cooper Power Systems
Acquired/sold by Vishay
Acquired by Northrup GrummanLitton Industries
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Power Electronics Corporate Genealogy
ada cheng Page 22 6/13/11
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Maxim Integrated ProductsMaxwell LaboratoriesMcGraw ElectricMcGraw-EdisonMean Well EnterprisesMicrelMicro-RelMicrochip TechnologyMicro LinearMicroPlanet TechnologyMicrosemiconductorMitelMitsubishi ElectricMobiletron ElectronicsMolectro ScienceMonolithic Power SystemsMotorolaMS KennedyMurata ManufacturingNatel EngineeringNational SemiconductorNational Union RadioNEMIC (Nippon Electronic Memory Industry Company)NEMIC-LambdaNetPower TechnologiesNXP SemiconductorO2MicroOki Power TechOmniRelON SemiconductorOnLine PowerOptimum Power ConversionOpto 22Oryx TechnologyPacific SemiconductorsPartner TechnologiesPascall ElectronicsPECO IIPennsylvania Transformer TechnologyPhihongPhilcoPhilco Ford MicroelectronicsPhilips (Semiconductor)PhotonisPicor (Vicor)Pioneer MagneticsPlesseyPower-OnePower ParagonPower TrendsPowerBrightPowerDsinePowerex
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2009Most Recent Name
Acquired Dallas SemiconductorMaxwell Technologies
Acqired by Sirenza Microdevices
Microsemi
Acquired by Anaren
Spun out Fairchild SemiconductorNational Union Electric
Merged with Nippon Electric to form Densei
Acquired by International Rectifier
Acquired by Intelek
Acquired by GEC & Siemens AG consortium
Acquired by SPD TechnologiesAcquired by Texas Instruments
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Power Electronics Corporate Genealogy
ada cheng Page 23 6/13/11
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Precision MonolithicsPrimarionProgrammable Power SupplyPULSPulse EngineeringQ.R.S. MusicQspeed SemiconductorQuantex CapitalRadiationRadio Corporation of America (RCA)Radio Electronics & Television Manufacturers Association (RETMA)Radio Receptor RaytheonRenesas TechnologyREORheem SemiconductorRO AssociatesRockwell MicroelectronicsRTES. Z. de FerrantiSalcompSamlex AmericaSamsungToho Sanken ElectricSatCon Technology SB ElectronicsSchneider ElectricSchrackSeletron SetecSGS-FairchildSGS-MicroelecttronicaSGS-ThompsonShindengen Electric ManufacturingShockley TransistorSiebeSiemensSigneticsSilcon A/SSilicon General SemiconductorsSilicon LinkSiliconixSipexG-L ElectronicsSL Power ElectronicsSmartPower SystemsSocit Generale Semiconduttori (SGS)Sola ElectricSola/Hevi-DutySolomonSolomon TechnologiesTokyo Tsushin Kogyo (Tokyo Telecommunications Engineering Company)SPD Technologies
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2009Most Recent Name
Acquired by Infineon
Acquired by Bel Fuse Pulse
Beddis International
Electronics Industries Alliance (EIA)
Acquired by EMRISESpun out as Conexant Conexant
Sanken Electric
Acquired by Siemens (Electromechanical Components)
Changed name to STMicroelectronics STMicroelectronics
Merged with BTR to form Invensys
Acquired by SymmetriCon
SL Industries
Sony
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Power Electronics Corporate Genealogy
ada cheng Page 24 6/13/11
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Sprague ElectricStaco Energy ProductsSummit MicroelectronicsSylvaniaSynqorTamuraTDI PowerTDKTeccor ElectronicsTechnitrolTelcom SemiconductorTeledyneTelefunken ElectronicTEMIC SemiconductorsTeridian Semiconductor (TSC)TESLAcoTexas InstrumentsThalesThomson SemiconducteursThomson-HoustonToshibaTranformer and Electrical Company Ltd (TEC)Transistor ProductsTransitronTRW LSITsi Power TycoTyco ElectronicsUS DigitalUnison Techno