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Patents


With over 400 patents and pending patent applications filed around the world, Enphase Energy is a global leader in patent filings covering renewable energy technology. We are committed to developing and protecting the most innovative technologies that deliver on a vision of energy independence for all.

As of February 4, 2021, Enphase has over 230 US patents and over 75 non-US patents, and many additional patents pending around the world. Listed below are our active and historical patents and patent application publications.

US Patents

  • D644609 FEMALE CONNECTOR
  • D644610 MALE CONNECTOR
  • D666974 Y-JUNCTION INTERCONNECT MODULE
  • D673114 INVERTER MODULE
  • D707632 TRUNK CONNECTOR
  • D708143 DROP CABLE CONNECTOR
  • D734653 AC MODULE MOUNTING BRACKET
  • 5886890 POWER-SUPPLY SYSTEM INVOLVING SYSTEM INTERCONNECTION
  • 5951785 PHOTO-VOLTAIC APPARATUS
  • 6331794 PHASE LEG WITH DEPLETION-MODE DEVICE
  • 7663342 APPARATUS, SYSTEM, AND METHOD FOR CONTROLLING MULTIPLE POWER SUPPLIES
  • 7755916 METHODS FOR MINIMIZING DOUBLE-FREQUENCY RIPPLE POWER IN SINGLE-PHASE POWER CONDITIONERS
  • 7768155 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • 7796412 METHOD AND APPARATUS FOR CONVERTING DIRECT CURRENT TO ALTERNATING CURRENT
  • 7855473 APPARATUS FOR PHASE ROTATION FOR A THREE-PHASE AC CIRCUIT
  • 7923983 METHOD AND APPARATUS FOR MEASURING AC VOLTAGES
  • 7925459 METHOD AND APPARATUS FOR DETERMINING AN OPERATING VOLTAGE FOR PREVENTING PHOTOVOLTAIC CELL REVERSE BREAKDOWN DURING POWER CONVERSION
  • 7944083 METHOD AND APPARATUS FOR CHARACTERIZING A CIRCUIT COUPLED TO AN AC LINE
  • 7945413 VOLTAGE-SENSED SYSTEM AND METHOD FOR ANTI-ISLANDING PROTECTION OF GRID-CONNECTED INVERTERS
  • 7982434 APPARATUS, SYSTEM, AND METHOD FOR CONTROLLING MULTIPLE POWER SUPPLIES
  • 7986122 METHOD AND APPARATUS FOR POWER CONVERSION WITH MAXIMUM POWER POINT TRACKING AND BURST MODE CAPABILITY
  • 7986539 METHOD AND APPARATUS FOR MAXIMUM POWER POINT TRACKING IN POWER CONVERSION BASED ON DUAL FEEDBACK LOOPS AND POWER RIPPLES
  • 7994657 MODULAR SYSTEM FOR UNATTENDED ENERGY GENERATION AND STORAGE
  • 8004865 METHODS FOR MINIMIZING DOUBLE-FREQUENCY RIPPLE POWER IN SINGLE-PHASE POWER CONDITIONERS
  • 8035257 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • 8076802 METHOD AND APPARATUS FOR DISTRIBUTED VAR COMPENSATION
  • 8099197 METHOD AND SYSTEM FOR DISTRIBUTED ENERGY GENERATOR MESSAGE AGGREGATION
  • 8107516 POWER LINE COMMUNICATIONS APPARATUS
  • 8120933 POWER CONVERTER WITH REVERSE RECOVERY AVOIDANCE
  • 8158877 LOCALIZED POWER POINT OPTIMIZER FOR SOLAR CELL INSTALLATIONS
  • 8174856 CONFIGURABLE POWER SUPPLY ASSEMBLY
  • 8179147 METHOD AND APPARATUS FOR DETECTION AND CONTROL OF DC ARC FAULTS
  • 8183852 METHOD AND APPARATUS FOR DETERMINING AC VOLTAGE WAVEFORM ANOMALIES
  • 8193788 METHOD AND DEVICE FOR CONTROLLING A CONFIGURABLE POWER SUPPLY TO PROVIDE AC AND/OR DC POWER OUTPUT
  • 8195414 METHOD AND APPARATUS FOR IDENTIFYING AN ISLANDING CONDITION
  • 8207637 SYSTEM AND APPARATUS FOR INTERCONNECTING AN ARRAY OF POWER GENERATING ASSEMBLIES
  • 8222767 APPARATUS FOR PHASE ROTATION FOR A THREE-PHASE AC CIRCUIT
  • 8279642 APPARATUS FOR CONVERTING DIRECT CURRENT TO ALTERNATING CURRENT USING AN ACTIVE FILTER TO REDUCE DOUBLE-FREQUENCY RIPPLE POWER OF BUS WAVEFORM
  • 8279649 APPARATUS AND METHOD FOR CONTROLLING A POWER INVERTER
  • 8284574 METHOD AND APPARATUS FOR CONTROLLING AN INVERTER USING PULSE MODE CONTROL
  • 8299776 METHOD AND APPARATUS FOR MEASURING AC VOLTAGES
  • 8319378 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • 8325499 METHODS FOR MINIMIZING DOUBLE-FREQUENCY RIPPLE POWER IN SINGLE-PHASE POWER CONDITIONERS
  • 8350411 MODULAR SYSTEM FOR UNATTENDED ENERGY GENERATION AND STORAGE
  • 8359176 METHOD AND APPARATUS FOR DETERMINING AN OPERATING VOLTAGE FOR PREVENTING PHOTOVOLTAIC CELL REVERSE BREAKDOWN DURING POWER CONVERSION
  • 8411790 POWER LINE COMMUNICATIONS APPARATUS
  • 8423312 VOLTAGE-SENSED SYSTEM AND METHOD FOR ANTI-ISLANDING PROTECTION OF GRID-CONNECTED INVERTERS
  • 8428783 METHOD AND SYSTEM FOR DISTRIBUTED ENERGY GENERATOR MESSAGE AGGREGATION
  • 8435056 APPARATUS FOR COUPLING POWER GENERATED BY A PHOTOVOLTAIC MODULE TO AN OUTPUT
  • 8450985 ENERGY RECOVERY CIRCUIT
  • 8451638 POWER CONVERTER WITH REVERSE RECOVERY AVOIDANCE
  • 8456265 TRANSFORMER
  • 8456876 CONFIGURABLE POWER SUPPLY ASSEMBLY T
  • 8461813 METHOD AND DEVICE FOR CONTROLLING A CONFIGURABLE POWER SUPPLY TO PROVIDE AC AND/OR DC POWER OUTPUT
  • 8462518 POWER INVERTER DOCKING SYSTEM FOR PHOTOVOLTAIC MODULES
  • 8482947 APPARATUS AND METHOD FOR CONTROLLING DC-AC POWER CONVERSION
  • 8492932 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • 8508964 VARIABLE DUTY CYCLE SWITCHING WITH IMPOSED DELAY
  • 8553035 METHOD AND APPARATUS FOR ELECTRICAL POWER VISUALIZATION
  • 8581441 DISTRIBUTED INVERTER AND INTELLIGENT GATEWAY
  • 8599587 MODULAR PHOTOVOLTAIC POWER SUPPLY ASSEMBLY
  • 8611107 METHOD AND SYSTEM FOR CONTROLLING A MULTI-STAGE POWER INVERTER
  • 8620476 METHOD AND APPARATUS FOR SMART CLIMATE CONTROL
  • 8624561 POWER CONVERSION HAVING ENERGY STORAGE WITH DYNAMIC REFERENCE
  • 8626616 METHOD AND APPARATUS FOR MANAGING INSTALLATION INFORMATION
  • 8630077 CIRCUITS AND METHODS FOR LIMITING OPEN CIRCUIT VOLTAGE OF PHOTOVOLTAIC STRINGS
  • 8634216 COMMUNICATION WITHIN A POWER INVERTER USING TRANSFORMER VOLTAGE FREQUENCY
  • 8659922 PHOTOVOLTAIC MODULE-MOUNTED AC INVERTER
  • 8666561 METHOD AND APPARATUS FOR DETERMINING A CORRECTED MONITORING VOLTAGE
  • 8717780 METHOD AND APPARATUS FOR CONVERTING DIRECT CURRENT TO ALTERNATING CURRENT
  • 8737100 METHOD AND APPARATUS FOR CONTROLLING AN INVERTER USING PULSE MODE CONTROL
  • 8749395 METHOD AND APPARATUS FOR INDICATING A DISCONNECTION WITHIN A DISTRIBUTED GENERATOR
  • 8754627 MULTI-MODE POWER POINT TRACKING
  • 8767421 POWER CONVERTER BUS CONTROL METHOD, SYSTEM, AND ARTICLE OF MANUFACTURE
  • 8796884 ENERGY CONVERSION SYSTEMS WITH POWER CONTROL
  • 8797767 RESONANT POWER CONVERSION CIRCUIT
  • 8811049 METHOD AND APPARATUS FOR DISTRIBUTED POWER GENERATION
  • 8817510 APPARATUS AND METHOD FOR CONTROLLING A POWER INVERTER
  • 8823356 SUPPLY VOLTAGE AUTO-SENSING
  • 8842454 INVERTER ARRAY WITH LOCALIZED INVERTER CONTROL
  • 8860242 POWER-LINE COMMUNICATION COUPLING
  • 8873252 METHOD AND APPARATUS FOR EXTENDING ZERO-VOLTAGE SWITCHING RANGE IN A DC TO DC CONVERTER
  • 8896330 METHOD AND APPARATUS FOR GRID IMPEDANCE DETECTION
  • 8922185 DEVICE AND METHOD FOR GLOBAL MAXIMUM POWER POINT TRACKING
  • 8929094 POWER INVERTER DOCKING SYSTEM FOR PHOTOVOLTAIC MODULES
  • 8937817 LOSSLESS COMMUTATION DURING OPERATION OF A POWER CONVERTER
  • 8963378 METHOD AND APPARATUS FOR INTERCONNECTING DISTRIBUTED POWER SOURCES
  • 8963923 METHOD AND APPARATUS FOR ELECTRICAL POWER VISUALIZATION
  • 8988096 FLASH TESTING OF PHOTOVOLTAIC MODULES WITH INTEGRATED ELECTRONICS
  • 9013171 METHOD AND APPARATUS FOR DETECTING A ZERO-VOLTAGE CONDITION ACROSS FOUR QUADRANT SWITCHES
  • 9030302 METHOD AND APPARATUS FOR THREE PHASE POWER LINE COMMUNICATIONS
  • 9031140 METHOD AND APPARATUS FOR TRANSMITTING COMBINED POWER, CONTROL AND DATA THROUGH AN ISOLATION BARRIER
  • 9048693 METHOD AND APPARATUS FOR DETECTING IMPAIRMENT OF A SOLAR ARRAY
  • 9048740 VARIABLE DUTY CYCLE SWITCHING WITH IMPOSED DELAY
  • 9048744 METHOD AND APPARATUS FOR RESONANT CONVERTER CONTROL
  • 9065354 MULTI-STAGE POWER INVERTER FOR POWER BUS COMMUNICATION
  • 9077202 POWER CONVERTER WITH SERIES ENERGY STORAGE
  • 9093919 APPARATUS FOR CONVERTING DIRECT CURRENT TO ALTERNATING CURRENT USING A FREQUENCY CONVERTERM
  • 9105765 SMART JUNCTION BOX FOR A PHOTOVOLTAIC SYSTEM
  • 9112417 METHOD AND APPARATUS FOR PROVIDING POWER CONVERSION USING AN INTERLEAVED FLYBACK CONVERTER WITH AUTOMATIC BALANCING
  • 9112522 DELTA CONVERSION ANALOG TO DIGITAL CONVERTER PROVIDING DIRECT AND QUADRATURE OUTPUT
  • 9118273 RESILIENT MOUNTING ASSEMBLY FOR PHOTOVOLTAIC MODULES
  • 9130570 FOUR QUADRANT BIDIRECTIONAL SWITCH
  • 9137916 METHOD AND APPARATUS FOR POTTING AN ELECTRONIC DEVICE
  • 9160408 SYSTEM AND METHOD FOR ESTABLISHING COMMUNICATION WITH AN ARRAY OF INVERTERS
  • 9165275 METHOD AND APPARATUS FOR IDENTIFYING REDEPLOYED DISTRIBUTED GENERATOR COMPONENTS
  • 9184652 METHOD AND APPARATUS FOR INVERTER OUTPUT CURRENT HARMONIC REDUCTION
  • 9190839 CIRCUITS AND METHODS FOR LIMITING OPEN CIRCUIT VOLTAGE OF PHOTOVOLTAIC STRINGS
  • 9225256 APPARATUS AND METHOD FOR CONTROLLING DC-AC POWER CONVERSION
  • 9263183 MODULAR PHOTOVOLTAIC POWER SUPPLY ASSEMBLY
  • 9263895 DISTRIBUTED ENERGY CONVERSION SYSTEMS
  • 9270388 METHOD AND APPARATUS FOR IMPULSE NOISE MITIGATION FOR POWER LINE NETWORKING
  • 9276635 DEVICE, SYSTEM, AND METHOD FOR COMMUNICATING WITH A POWER INVERTER USING POWER LINE COMMUNICATIONS
  • 9279832 METHOD AND APPARATUS FOR MEASURING AC VOLTAGES
  • 9281419 LOCALIZED POWER POINT OPTIMIZER FOR SOLAR CELL INSTALLATIONS
  • 9373958 CONTROL TECHNIQUES FOR PHOTOVOLTAIC POWER PLANTS
  • 9379627 RESONANT POWER CONVERSION CIRCUIT
  • 9397611 PHOTOVOLTAIC SYSTEMS WITH LOCAL MAXIMUM POWER POINT TRACKING PREVENTION AND METHODS FOR OPERATING SAME
  • 9407169 METHOD AND APPARATUS FOR DISTRIBUTED POWER GENERATION
  • 9407326 METHOD AND APPARATUS FOR THREE-PHASE POWER LINE COMMUNICATIONS
  • 9419438 POWER-LINE COMMUNICATION COUPLING
  • 9431922 ARC FAULT PROTECTION FOR POWER CONVERSION
  • 9436198 METHOD AND APPARATUS FOR POWER CONVERSION
  • 9444355 METHOD AND APPARATUS FOR DETERMINING A BRIDGE MODE FOR POWER CONVERSION
  • 9444367 METHOD AND APPARATUS FOR GENERATING SINGLE-PHASE POWER FROM A THREE-PHASE RESONANT POWER CONVERTER
  • 9450405 METHOD AND APPARATUS FOR REACTIVE POWER CAPABLE INVERTERS
  • 9450500 METHOD AND APPARATUS FOR MODULATING LOWER POWERS IN RESONANT CONVERTERS
  • 9461550 METHOD AND APPARATUS FOR EXTENDING ZERO-VOLTAGE SWITCHING RANGE IN A DC TO DC CONVERTER
  • 9461552 METHOD AND APPARATUS FOR POWER CONVERSION
  • 9461561 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • 9472691 DEVICE FOR SHUNTING CURRENT FROM PHOTOVOLTAIC CIRCUIT NEAR THE OPEN CIRCUIT VOLTAGE AND/OR DISCONNECTING SOLAR MODULE OF A SOLAR SYSTEM
  • 9477247 DEVICE AND METHOD FOR GLOBAL MAXIMUM POWER POINT TRACKING
  • 9478967 METHOD AND APPARATUS FOR DETECTION AND CONTROL OF DC ARC FAULTS
  • 9479082 METHOD AND APPARATUS FOR RESONANT POWER CONVERSION
  • 9495774 METHOD AND APPARATUS FOR ELECTRICAL POWER VISUALIZATION
  • 9496794 REGULATION OF POWERTRAIN CONVERTER CIRCUIT
  • 9509142 METHOD AND APPARATUS FOR DETERMINING A CORRECTED MONITORING VOLTAGE
  • 9509371 METHOD AND APPARATUS FOR POWER LINE COMMUNICATIONS DISTORTION COMPENSATION
  • 9531191 METHOD AND APPARATUS FOR POWER IMBALANCE CORRECTION IN A MULTI-PHASE POWER GENERATOR
  • 9531300 SINGLE-PHASE CYCLOCONVERTER WITH INTEGRATED LINE-CYCLE ENERGY STORAGE
  • 9537420 METHOD AND APPARATUS FOR POWER MODULE OUTPUT POWER REGULATION
  • 9547033 HIERARCHICAL FAULT PREDICTION, DETECTION AND LOCALIZATION IN PV SYSTEMS WITH DISTRIBUTED ELECTRONICS
  • 9557367 METHOD AND APPARATUS FOR MONITORING MAXIMUM POWER POINT TRACKING
  • 9564835 INVERTER COMMUNICATIONS USING OUTPUT SIGNAL
  • 9583255 SURGE BLOCKING INDUCTOR
  • 9583946 METHOD AND APPARATUS FOR POWER CONVERTER INPUT VOLTAGE REGULATION
  • 9584038 UNGROUNDED INVERTER ENCLOSURE AND CABLING
  • 9584044 TECHNOLOGIES FOR CONVERTER TOPOLOGIES
  • 9608448 DISTRIBUTED ENERGY CONVERSION SYSTEMS
  • 9627555 POWER INVERTER DOCKING SYSTEM FOR PHOTOVOLTAIC MODULES
  • 9634723 COMMUNICATION BETWEEN PHOTOVOLTAIC DEVICES ON A SHARED POWER LINE
  • 9635783 ELECTRONIC COMPONENT HOUSING WITH HEAT SINK
  • 9647574 MULTI-STAGE POWER INVERTER
  • 9660451 ISLANDED OPERATION OF DISTRIBUTED POWER SOURCES
  • 9680301 MASTER-SLAVE ARCHITECTURE FOR CONTROLLING OPERATION OF PHOTOVOLTAIC POWER PLANTS
  • 9681565 ELECTRICAL INSULATOR CASING
  • 9692319 POWER SYSTEM ISLANDING DETECTION WITH WAVEFRORM FITTING
  • 9698869 METHOD AND APPARATUS FOR THREE PHASE POWER LINE COMMUNICATIONS
  • 9722504 APPARATUS FOR CONVERTING DIRECT CURRENT TO ALTERNATING CURRENT USING MULTIPLE CONVERTERS
  • 9735729 CIRCUITS AND METHODS FOR LIMITING OPEN CIRCUIT VOLTAGE OF PHOTOVOLTAIC STRINGS
  • 9768698 METHOD AND APPARATUS FOR PROVIDING POWER CONVERSION USING AN INTERLEAVED FLYBACK CONVERTER WITH AUTOMATIC BALANCING
  • 9774189 METHOD AND APPARATUS FOR MULTI-PHASE POWER CONVERSION HAVING MODIFIED BURST CURRENT
  • 9780645 METHOD AND APPARATUS FOR PROVIDING POWER CONVERSION USING AN INTERLEAVED FLYBACK CONVERTER WITH REACTIVE POWER CONTROL
  • 9793854 METHOD AND APPARTUS FOR GROUND FAULT DETECTION
  • 9801293 ENERGY STORAGE/DELIVERY DEVICE MOUNTING PLATE
  • 9806445 METHOD AND APPARATUS FOR INTERCONNECTING DISTRIBUTED POWER SOURCES
  • 9806628 APPARATUS AND METHOD FOR CONTROLLING DC-AC POWER CONVERSION
  • 9817424 METHOD AND APPARATUS FOR MAXIMUM POWER POINT TRACKING FOR MULTI-INPUT POWER CONVERTER
  • 9819182 SYSTEMIC OPTIMIZATION OF PHOTOVOLTAIC APPARATUS
  • 9825556 CONVERTER TOPOLOGIES FOR COMMON MODE VOLTAGE REDUCTION
  • 9843358 DEVICE, SYSTEM, AND METHOD FOR COMMUNICATING WITH A POWER INVERTER USING POWER LINE COMMUNICATIONS
  • 9871459 METHOD AND APPARATUS FOR DERIVING CURRENT FOR CONTROL IN A RESONANT POWER CONVERTER
  • 9882598 COMMUNICATION SYSTEMS ADAPTABLE TO POWER LINE COMMUNICATIONS
  • 9887639 COMMUNICATION WITHIN A POWER INVERTER USING TRANSFORMER VOLTAGE FREQUENCY
  • 9893532 SYSTEM AND METHOD FOR A MESH POWER SYSTEM
  • 9906036 ALTERNATIVE SOURCE MODULE ARRAY CHARACTERIZATION
  • 9912159 METHOD AND APPARATUS FOR DETECTION OF LOCAL LINE PHASE IN A MULTI-PHASE POWER LINE SYSTEM
  • 9912161 CONTROL TECHNIQUES FOR PHOTOVOLTAIC POWER PLANTS
  • 9917447 SYSTEMS AND METHODS FOR SYNCHRONIZNG AN APPLIANCE LOAD TO A LOCAL POWER GENERATING CAPABILITY
  • 9923374 PHOTOVOLTAIC SYSTEMS WITH LOCAL MAXIMUM POWER POINT TRACKING PREVENTION AND METHODS FOR OPERATING SAME
  • 9923488 SOFT SWITCHING TECHNIQUE FOR A GRID-TIED INVERTER
  • 9940412 METHOD AND APPARATUS FOR MANAGING INSTALLATION INFORMATION
  • 9948204 METHOD AND APPARATUS FOR CONTROLLING RESONANT CONVERTER OUTPUT POWER
  • 9952263 METHOD AND APPARATUS FOR GRID IMPEDANCE DETECTION
  • 9954462 CONVERTER TOPOLOGIES AND CONTROL
  • 9960707 PARALLEL POWER CONVERTER
  • 9960712 CONVERTER TOPOLOGIES AND CONTROL
  • 10003194 PARALLEL BATTERY SYSTEM
  • 10003300 PHOTOVOLTAIC MANAGEMENT AND MODULE-LEVEL POWER ELECTRONICS
  • 10008854 METHOD AND APPARATUS FOR TIME-DOMAIN DROOP CONTROL WITH INTEGRATED PHASOR CURRENT CONTROL
  • 10008979 INTEGRATION OF MICROINVERTER WITH PHOTOVOLTAIC MODULE
  • 10033221 SYSTEM AND METHOD FOR ESTABLISHING COMMUNICATION WITH AN ARRAY OF INVERTERS
  • 10050446 DEVICE AND METHOD FOR GLOBAL MAXIMUM POWER POINT TRACKING
  • 10050561 THREE-LEVEL INVERTER SWITCHING
  • 10069308 LOCALIZED POWER POINT OPTIMIZER FOR SOLAR CELL INSTALLATIONS
  • 10074474 MATRIX PLANAR TRANSFORMER
  • 10079557 EFFICIENT RESONANT TOPOLOGY FOR DC-AC INVERSION WITH MINIMAL USE OF HIGH FREQUENCY SWITCHES
  • 10098261 DOUBLE INSULATED HEATED SPREADER
  • 10126131 AUTOMATED PHOTOVOLTAIC GEOSPATIAL LOCATION
  • 10126721 METHOD AND APPARATUS FOR ACTIVATION AND DE-ACTIVATION OF POWER CONDITIONERS IN DISTRIBUTED RESOURCE ISLAND SYSTEMS USING LOW VOLTAGE AC
  • 10141868 METHOD AND APPARATUS FOR RESONANT POWER CONVERSION
  • 10193347 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • 10198019 METHOD AND APPARATUS FOR SEQUENCE OF EVENT LOGGING BY A POWER CONDITIONER
  • 10205417 AUTOMATED COMMISSIONING AND INSPECTION FOR PV SYSTEMS
  • 10211631 VOLTAGE CLIPPING
  • 10218362 METHOD AND APPARATUS FOR SUBSTATION FINGERPRINTING
  • 10230325 REMOTE ARRAY MAPPING
  • 10291177 PV MODULE POWER ELECTONICS MOUNTING SYSTEM WITH COMPRESSION SPRING
  • 10326277 HIERARCHICAL CONTROL OF A PLURALITY OF POWER SUBSYSTEMS AND METHOD OF OPERATING THE SAME
  • 10339682 METHOD AND APPARATUS FOR ENERGY DATA VISUALIZATION
  • 10365309 METHOD AND APPARATUS FOR USING MODULE-LEVEL POWER ELECTRONICS DATA FOR VALIDATING DISTRIBUTED ENERGY RESOURCE SYSTEM PARAMETERS
  • 10367408 ELECTROMAGNETIC COMPATIBILITY FILTER WITH AN INTEGRATED POWER LINE COMMUNICATION INTERFACE
  • 10404190 INVERTER COMMUNICATIONS USING OUTPUT SIGNAL
  • 10431980 METHOD AND APPARATUS FOR INCREASED ENERGY HARVEST IN A MICROGRID
  • 10431988 ALTERNATIVE SOURCE MODULE ARRAY CHARACTERIZATION
  • 10461530 APPARATUS AND SYSTEM FOR COUPLING POWER ELECTRONICS TO A PHOTOVOLTAIC MODULE
  • 10468993 AN INVERTER FOR USE IN PHOTOVOLTAIC MODULE
  • 10483795 SYSTEM AND METHOD FOR ESTABLISHING COMMUNICATION WITH AN ARRAY OF INVERTERS
  • 10511178 AUTONOMOUS CHARGE BALANCING OF DISTRIBUTED AC COUPLED BATTERIES WITH DROOP OFFSET
  • 10516270 METHOD AND APPARATUS FOR COORDINATION OF GENERATORS IN DROOP CONTROLLED MICROGRIDS USING HYSTERESIS
  • 10530276 CONVERTER TOPOLOGIES AND CONTROL
  • 10581336 THREE-PHASE AC/AC CONVERTER WITH QUASI-SINE WAVE HF SERIES RESONANT LINK
  • 10615742 PHOTOVOLTAIC MANAGEMENT AND MODULE-LEVEL POWER ELECTRONICS
  • 10635059 METHOD AND APPARATUS FOR ACTIVATION AND DE-ACTIVATION OF POWER CONDITIONERS IN DISTRIBUTED RESOURCE ISLAND SYSTEMS USING LOW VOLTAGE AC
  • 10686399 APPARATUS FOR MOUNTING A POWER CONDITIONER TO A PHOTOVOLTAIC MODULE FRAME
  • 10707681 METHOD AND APPARATUS FOR IMPEDANCE MATCHING IN VIRTUAL IMPEDANCE DROOP CONTROLLED POWER CONDITIONING UNITS
  • 10707775 METHOD AND APPARATUS FOR MULTI PHASE SHIFT POWER CONVERTER CONTROL
  • 10715034 ISOLATED GATE DRIVER AUXILIARY POWER SUPPLY
  • 10734913 METHOD AND APPARATUS FOR BIDIRECTIONAL POWER PRODUCTION IN A POWER MODULE
  • 10765015 BULKHEAD INTERFACE AND CABLE CONNECTOR
  • 10797435 METHOD AND APPARATUS FOR SECURING A SEGMENTED POWER CABLE FOR SHIPPING AND STORAGE
  • 10804816 METHOD AND APPARATUS FOR THREE PORT LINE FREQUENCY ENERGY STORAGE
  • 10892619 DISTRIBUTED INVERTER AND INTELLIGENT GATEWAY
  • 10903654 METHOD AND APPARATUS FOR MINIMIZING CIRCULATING CURRENTS IN MICROGRIDS

 

Non-US Patents

  • Australia 2008254814 DISTRIBUTED INVERTER AND INTELLIGENT GATEWAY
  • Australia 2008254822 PHOTOVOLTAIC MODULE-MOUNTED AC INVERTER
  • Australia 2009302200 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • Australia 2010286576 POWER LINE COMMUNICATIONS APPARATUS
  • Australia 2011203367 DISTRIBUTED INVERTER AND INTELLIGENT GATEWAY
  • Australia 2012203475 PHOTOVOLTAIC MODULE-MOUNTED AC INVERTER
  • Australia 2012262169 METHOD AND APPARATUS FOR GRID IMPEDANCE DETECTION
  • Australia 2013221272 METHOD AND APPARATUS FOR THREE-PHASE POWER LINE COMMUNICATIONS
  • Australia 2014240283 METHOD AND APPARATUS FOR GROUND FAULT DETECTION
  • Australia 2015336063 ENERGY STORAGE/DELIVERY DEVICE MOUNTING PLATE
  • China ZL20180025576.3 POWER LINE COMMUNICATIONS APPARATUS
  • China ZL201410558516.8 METHOD AND APPARATUS FOR GROUND FAULT DETECTION
  • China ZL201780008616.5 DUAL-POSITION MOUNT FOR ELECTRONIC MODULES
  • China ZL201390001026.7 EQUIPMENT FOR POWER TRANSFER
  • China ZL201480014527.8 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • China ZL201480038967.7 SINGLE-PHASE CYCLOCONVERTER WITH INTEGRATED LINE-CYCLE ENERGY STORAGE
  • China ZL201580002932.2 DOUBLE INSULATED HEATED SPREADER
  • European Patent Office 1837985 METHOD AND APPARATUS FOR CONVERTING DIRECT CURRENT TO ALTERNATING CURRENT
  • European Patent Office 2198505 METHODS FOR MINIMIZING DOUBLE-FREQUENCY RIPPLE POWER IN SINGLE-PHASE POWER CONDITIONERS
  • European Patent Office 2345133 METHOD AND APPARATUS FOR DETERMINING AN OPERATING VOLTAGE FOR PREVENTING PHOTOVOLTAIC CELL REVERSE BREAKDOWN DURING POWER CONVERSION
  • European Patent Office 2345143 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • European Patent Office 2460243 APPARATUS AND METHOD FOR CONTROLLING DC-AC POWER CONVERSION
  • European Patent Office 2471190 POWER LINE COMMUNICATIONS APPARATUS
  • European Patent Office 2661804 METHOD AND APPARATUS FOR RESONANT CONVERTER CONTROL
  • European Patent Office 2661805 METHOD AND APPARATUS FOR RESONANT POWER CONVERSION
  • European Patent Office 2771752 MASTER-SLAVE ARCHITECTURE FOR CONTROLLING OPERATION OF PHOTOVOLTAIC POWER PLANTS
  • European Patent Office 2795681 CIRCUITS AND METHODS FOR LIMITING OPEN CIRCUIT VOLTAGE OF PHOTOVOLTAIC STRINGS
  • European Patent Office 2815517 METHOD AND APPARATUS FOR THREE PHASE POWER LINE COMMUNICATIONS
  • European Patent Office 2831921 PHOTOVOLTAIC SYSTEMS WITH LOCAL MAXIMUM POWER POINT TRACKING PREVENTION AND METHODS FOR OPERATING SAME
  • European Patent Office 2831925 ELECTRONIC COMPONENT HOUSING WITH HEAT SINK
  • European Patent Office 3308444 METHOD AND APPARATUS FOR CONTROL OF INTELLIGENT LOADS IN MICROGRIDS
  • France EP1837985 METHOD AND APPARATUS FOR CONVERTING DIRECT CURRENT TO ALTERNATING CURRENT
  • France EP2345133 METHOD AND APPARATUS FOR DETERMINING AN OPERATING VOLTAGE FOR PREVENTING PHOTOVOLTAIC CELL REVERSE BREAKDOWN DURING POWER CONVERSION
  • France EP2345143 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • France EP2471190 POWER LINE COMMUNICATIONS APPARATUS
  • France EP2661804 METHOD AND APPARATUS FOR RESONANT CONVERTER CONTROL
  • France EP2661805 METHOD AND APPARATUS FOR RESONANT POWER CONVERSION
  • France EP2815517 METHOD AND APPARATUS FOR THREE PHASE POWER LINE COMMUNICATIONS
  • France EP3308444 METHOD AND APPARATUS FOR CONTROL OF INTELLIGENT LOADS IN MICROGRIDS
  • Germany EP2198505 METHODS FOR MINIMIZING DOUBLE-FREQUENCY RIPPLE POWER IN SINGLE-PHASE POWER CONDITIONERS
  • Germany EP2345133 METHOD AND APPARATUS FOR DETERMINING AN OPERATING VOLTAGE FOR PREVENTING PHOTOVOLTAIC CELL REVERSE BREAKDOWN DURING POWER CONVERSION
  • Germany EP2345143 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • Germany EP2471190 POWER LINE COMMUNICATIONS APPARATUS
  • Germany EP2661804 METHOD AND APPARATUS FOR RESONANT CONVERTER CONTROL
  • Germany EP2661805 METHOD AND APPARATUS FOR RESONANT POWER CONVERSION
  • Germany EP2815517 METHOD AND APPARATUS FOR THREE PHASE POWER LINE COMMUNICATIONS
  • Germany EP2831921 PHOTOVOLTAIC SYSTEMS WITH LOCAL MAXIMUM POWER POINT TRACKING PREVENTION AND METHODS FOR OPERATING SAME
  • Germany EP3308444 METHOD AND APPARATUS FOR CONTROL OF INTELLIGENT LOADS IN MICROGRIDS
  • Japan 5259108 METHOD AND APPARATUS FOR CONVERTING DIRECT CURRENT TO ALTERNATING CURRENT
  • Japan 5562422 POWER LINE COMMUNICATIONS APPARATUS
  • Japan 5773368 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • Japan 5987903 METHOD AND APPARATUS FOR GRID IMPEDANCE DETECTION
  • Japan 6112369 METHOD AND APPARATUS FOR THREE PHASE POWER LINE COMMUNICATIONS
  • Japan 6140803 CONTROL TECHNIQUES FOR PHOTOVOLTAIC POWER PLANTS
  • Japan 6181148 PHOTOVOLTAIC SYSTEMS WITH LOCAL MAXIMUM POWER POINT TRACKING PREVENTION AND METHODS FOR OPERATING SAME
  • Japan 6205658 MASTER-SLAVE ARCHITECTURE FOR CONTROLLING OPERATION OF PHOTOVOLTAIC POWER PLANTS
  • Japan 6209790 ELECTRONIC COMPONENT HOUSING WITH HEAT SINK
  • Japan 6299028 CIRCUITS AND METHODS FOR LIMITING OPEN CIRCUIT VOLTAGE OF PHOTOVOLTAIC STRINGS
  • Japan 6351120 SYSTEM AND METHOD FOR A MESH POWER SYSTEM
  • Japan 6637507 CONVERTER TOPOLOGIES FOR COMMON MODE VOLTAGE REDUCTION
  • Mexico 337709 CONTROL TECHNIQUES FOR PHOTOVOLTAIC POWER PLANTS
  • Mexico 339651 CIRCUITS AND METHODS FOR LIMITING OPEN CIRCUIT VOLTAGE OF PHOTOVOLTAIC STRINGS
  • Mexico 339956 PHOTOVOLTAIC SYSTEMS WITH LOCAL MAXIMUM POWER POINT TRACKING PREVENTION AND METHODS FOR OPERATING SAME
  • Mexico 346126 CONTROL TECHNIQUES FOR PHOTOVOLTAIC POWER PLANTS
  • Mexico 354131 CIRCUITS AND METHODS FOR LIMITING OPEN CIRCUIT VOLTAGE OF PHOTOVOLTAIC STRINGS
  • Mexico 356627 PHOTOVOLTAIC SYSTEMS WITH LOCAL MAXIMUM POWER POINT TRACKING PREVENTION AND METHODS FOR OPERATING SAME
  • Republic of Korea 101535589 DISTRIBUTED INVERTER AND INTELLIGENT GATEWAY
  • Republic of Korea 101577594 PHOTOVOLTAIC MODULE-MOUNTED AC INVERTER
  • Republic of Korea 101663957 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • Republic of Korea 101664274 POWER LINE COMMUNICATIONS APPARATUS
  • Republic of Korea 101925528 LOCALIZED POWER POINT OPTIMIZER FOR SOLAR CELL INSTALLATIONS
  • Republic of Korea 10-2087063 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • Republic of Korea 1580207 PHOTOVOLTAIC MODULE-MOUNTED AC INVERTER
  • United Kingdom EP2345133 METHOD AND APPARATUS FOR DETERMINING AN OPERATING VOLTAGE FOR PREVENTING PHOTOVOLTAIC CELL REVERSE BREAKDOWN DURING POWER CONVERSION
  • United Kingdom EP2345143 METHOD AND APPARATUS FOR IMPROVED BURST MODE DURING POWER CONVERSION
  • United Kingdom EP2471190 POWER LINE COMMUNICATIONS APPARATUS
  • United Kingdom EP2661804 METHOD AND APPARATUS FOR RESONANT CONVERTER CONTROL
  • United Kingdom EP2661805 METHOD AND APPARATUS FOR RESONANT POWER CONVERSION
  • United Kingdom EP2815517 METHOD AND APPARATUS FOR THREE PHASE POWER LINE COMMUNICATIONS
  • United Kingdom EP3308444 METHOD AND APPARATUS FOR CONTROL OF INTELLIGENT LOADS IN MICROGRIDS

 

Published US Patent Applications

  • 20200396851 BULKHEAD INTERFACE AND CABLE CONNECTOR
  • 20200335972 METHOD AND APPARATUS FOR IMPEDANCE MATCHING IN VIRTUAL IMPEDANCE DROOP CONTROLLED POWER CONDITIONING UNITS
  • 20200303923 DISTRIBUTED INVERTER AND INTELLIGENT GATEWAY
  • 20200257256 METHOD AND APPARATUS FOR ACTIVATION AND DE-ACTIVATION OF POWER CONDITIONERS IN DISTRIBUTED RESOURCE ISLAND SYSTEMS USING LOW VOLTAGE AC
  • 20200235699 PHOTOVOLTAIC MANAGEMENT AND MODULE-LEVEL POWER ELECTRONICS
  • 20200106277 AUTONOMOUS CHARGE BALANCING OF DISTRIBUTED AC COUPLED BATTERIES WITH DROOP OFFSET
  • 20200127459 METHOD AND APPARATUS FOR COORDINATION OF GENERATORS IN DROOP CONTROLLED MICROGRIDS USING HYSTERESIS
  • 20190267937 PV MODULE POWER ELECTONICS MOUNTING SYSTEM WITH COMPRESSION SPRING
  • 20190089412 APPARATUS FOR COMMUNICATING ACROSS AN ISOLATION BARRIER
  • 20190052091 LOCALIZED POWER POINT OPTIMIZER FOR SOLAR CELL INSTALLATIONS
  • 20180302028 INTEGRATION OF MICROINVERTER WITH PHOTOVOLTAIC MODULE
  • 20180301914 METHOD AND SYSTEM FOR AN AC BATTERY
  • 20180226899 CONVERTER TOPOLOGIES AND CONTROL
  • 2018-0183241 FILTER COMPONENT REDUCTION
  • 20180115277 HUMIDITY-CONTROLLED ELECTRONIC COMPONENT ASSEMBLIES FOR PHOTOVOLTAIC SYSTEMS
  • 20180097366 METHOD AND APPARATUS FOR CONTROLLING POWER GRID MEMBER BEHAVIOR
  • 20170363666 METHOD AND APPARATUS FOR ENERGY FLOW VISUALIZATION
  • 20170163042 DISTRIBUTED ENERGY CONVERSION SYSTEMS
  • 20170142857 UNGROUNDED INVERTER ENCLOSURE AND CABLING
  • 20170078117 METHOD AND APPARATUS FOR CHANNEL ESTIMATION FOR THREE-PHASE PLC SYSTEMS
  • 20170025995 DEVICE FOR REDUCING THE OPEN CIRCUIT VOLTAGE OF A SOLAR SYSTEM
  • 20160211743 APPARATUS AND METHOD FOR REACTIVE POWER CONTROL
  • 20160043684 METHOD AND APPARATUS FOR PROVISIONING AN ALTERNATIVE ENERGY SOURCE GENERATOR
  • 20150188486 ALTERNATING CURRENT PHOTOVOLTAIC MODULE
  • 20150094870 METHOD AND APPARATUS FOR CONTROLLING POWER BASED ON PREDICTED WEATHER EVENTS
  • 20140306541 METHOD AND APPARATUS FOR IMPROVING PV MODULE FILL FACTOR USING A VOLTAGE CLAMPING CIRCUIT

 

Published Non-US Patent Applications

  • Chile 41256 PHOTOVOLTAIC SYSTEMS WITH LOCAL MAXIMUM POWER POINT TRACKING PREVENTION AND METHODS FOR OPERATING SAME
  • China CN108306277 MASTER-SLAVE ARCHITECTURE FOR CONTROLLING OPERATION OF PHOTOVOLTAIC POWER PLANTS
  • China CN10799485 HUMIDITY-CONTROLLED ELECTRONIC COMPONENT ASSEMBLIES FOR PHOTOVOLTAIC SYSTEMS
  • China CN10837016 METHOD AND APPARATUS FOR COORDINATION OF GENERATORS IN DROOP CONTROLLED MICROGRIDS USING HYSTERESIS
  • European Patent Office 3047566 SINGLE-PHASE CYCLOCONVERTER WITH INTEGRATED LINE-CYCLE ENERGY STORAGE
  • European Patent Office 3347960 METHOD AND APPARATUS FOR IMPEDANCE MATCHING IN VIRTUALIMPEDANCE DROOP CONTROLLED POWER CONDITIONING UNITS
  • European Patent Office 3664246 METHOD AND APPARATUS FOR CONTROL OF INTELLIGENT LOADS IN MICROGRIDS
  • Republic of Korea 1020150071681 METHOD AND APPARATUS FOR GROUND FAULT DETECTION