Patents

Explore our Patents

With over 370 active patent families around the world and more pending, Enphase Energy is a global leader in energy technology. We're committed to developing the most innovative tools to deliver on a vision of energy independence for all. The patents listed below are just the tip of the iceberg in our drive towards the democratization of energy management.

Australia
2007229854 Method and apparatus for converting direct current to alternating current
2007229854 Method and apparatus for converting direct current to alternating current
2008233230 Localized power point optimizer for solar cell installations
2008254814 Distributed inverter and intelligent gateway
2008254814 Distributed inverter and intelligent gateway
2008254822 Photovoltaic module-mounted AC inverter
2008254822 Photovoltaic module-mounted AC inverter
2008254828 Photovoltaic AC inverter mount and interconnect
2009302200 Method and apparatus for improved burst mode during power conversion
2009322282 Mounting rail and power distribution system for use in a photovoltaic
2010201291 Apparatus for coupling power generated by a photovoltaic module to an output
2010271405 Method and apparatus for single-path control and monitoring of an H-
2010273590 Method and apparatus for identifying redeployed distributed generator components
2010284373 Method and apparatus for distributed energy generator message
2010286576 Power line communications apparatus
2011202022 Method and apparatus for converting direct current to alternating current
2011207434 Method and apparatus for interconnecting distributed power sources
2011235110 Method and apparatus for managing installation information
2011240594 Improved transformer
2011250957 Lossless communication during operation of power converter
2011316727 Apparatus and method for controlling a power inverter
2011336974 Inverter array with localized inverter control
2012262169 Method and apparatus for grid impedance detection
2012322789 Electrical insulator casing
2012328766 Master-slave architecture for controlling operation of photovoltaic power plants
2012355665 Circuits and methods for limiting open circuit voltage of photovoltaic strings
2012374044 Control techniques for photovoltaic power plants
2012375214 Photovoltaic systems with local maximum power point tracking prevention and methods for operating same
2013221272 Method and apparatus for three-phase power line communications
2013239955 Electronic component housing with heat sink
2013284458 Device, system, and method for communicating with a power inverter using power line communications
2014201681 Method and apparatus for distributed energy generator message
2014237119 Inverter communications using output signal
2014240283 Method and apparatus for ground fault detection
Germany
2198505 Methods for minimizing double-frequency ripple power in single phase current conditioners
2198505 Methods for minimizing double-frequency ripple power in single phase current conditioners
2345133 Method and apparatus for determining an operating voltage to prevent reverse photovoltaic cell breakdown during power conversion
2345133 Method and apparatus for determining an operating voltage to prevent reverse photovoltaic cell breakdown during power conversion
2345143 Method and apparatus for improved burst mode during power conversion
2345143 Method and apparatus for improved burst mode during power conversion
2460243 Apparatus and method for controlling DC-AC power conversion
2471190 Power line communications apparatus
2471190 Power line communications apparatus
2489078 Power inverter docking system for photovoltaic modules
2741388 Method and apparatus for detection and control of DC arc faults
2741388 Method and apparatus for detection and control of DC arc faults
2795681 Circuits and methods for limiting open circuit voltage of photovoltaic strings
2815517 Method and apparatus for three-phase power line communications
2815517 Method and apparatus for three-phase power line communications
2831921 Photovoltaic systems with local maximum power point tracking prevention and methods for operating same
2831925 Electronic component housing with heat sink
3149827 Inverter array characterization
6020070354897 Method and apparatus for converting direct current to alternating current
6020070354897 Method and apparatus for converting direct current to alternating current
6020100140822 Method and apparatus for detection and control of DC arc faults
6020100140822 Method and apparatus for detection and control of DC arc faults
Japan
2,017,502,490 System, method, and computer program product for controlling voltage of DC power sources and bypassing series-connected power sources
3,357,808 Solar battery equipment
5,259,108 Method and apparatus for converting direct current to alternating current
5,455,184 Method and apparatus for power conversion with maximum power point tracking and burst mode capability
5,459,634 Method and apparatus for maximum power point tracking in power conversion based on dual feedback loops and power ripples
5,524,335 Method and apparatus for detection and control of DC arc faults
5,550,725 Method and apparatus for identifying redeployment distributed generator components
5,562,422 Power line communication apparatus
5,621,094 Localized power point optimizer for solar cell installations
5,654,982 Method and apparatus for extending zero-voltage switching range in A
5,737,660 Method and apparatus for interconnecting distributed power sources
5,747,504 Methods for minimizing double-frequency ripple power in single-phase power conditioners
5,754,823 Lossless communication during operation of a power converter
5,773,368 Method and apparatus for improved burst mode during power
5,804,609 Improved transformer
5,987,903 Method and apparatus for grid impedance detection
6,112,369 Method and apparatus for three-phase power line communications
6,140,803 Control techniques for photovoltaic power plants
6,181,148 Photovoltaic systems with local maximum power point tracking prevention and methods for operating same
6,205,658 Master-slave architecture for controlling operation of photovoltaic power plants
6,209,790 Electronic component housing with heat sink
6,299,028 Circuits and methods for limiting open circuit voltage of photovoltaic strings
6,351,120 System and method for a mesh power system
6,357,679 Method and apparatus for ground fault detection
US and US Territories
More information is available at uspto.gov.
10,003,194 Parallel battery system
10,003,300 Photovoltaic management and module-level power electronics
10,008,854 Method and apparatus for time-domain droop control with integrated phasor current control
10,008,979 Integration of microinverter with photovoltaic module
10,020,657 Pole-mounted power generation systems, structures and processes
10,032,975 Thermoelectric devices and power systems
10,050,446 Device and method for global maximum power point tracking
10,050,561 Three-level inverter switching
10,069,457 System for mounting a microinverter to a photovoltaic panel and method of making same
10,074,474 Matrix planar transformer
10,079,557 Efficient resonant topology for DC-AC inversion with minimal use of high frequency switches
10,090,430 System for manufacturing a shingled solar cell module
10,098,261 Double insulated heat spreader
10,115,850 Roof integrated solar panel system with side mounted micro inverters
10,116,257 Enhanced solar panels, liquid delivery systems and associated processes for solar energy systems
10,121,913 Solar photovoltaic module safety shutdown system
10,126,131 Automated photovoltaic geospatial location
10,126,721 Method and apparatus for activation and deactivation of power conditioners in distributed resource island systems using low voltage AC
10,141,868 Method and apparatus for resonant power conversion
10,193,347 Method and apparatus for improved burst mode during power conversion
10,198,019 Method and apparatus for sequence of event logging by a power conditioner
10,205,417 Automated commissioning and inspection for PV systems
10,211,631 Voltage clipping
10,216,158 Heating, ventilation and air conditioning capacity monitor
10,218,362 Method and apparatus for substation fingerprinting
10,230,325 Remote array mapping
10,248,113 Alerting system
10,250,184 Enhanced solar panels, liquid delivery systems and associated processes for solar energy systems
10,291,177 PV module power electronics mounting system with compression spring
10,326,277 Hierarchical control of a plurality of power subsystems and method of operating the same
10,339,682 Method and apparatus for energy data visualization
10,365,309 Method and apparatus for using module-level power electronics data for validating distributed energy resource system parameters
10,367,408 Electromagnetic compatibility filter with an integrated power line communication interface
10,429,808 System that automatically infers equipment details from controller configuration details
10,431,980 Method and apparatus for increased energy harvest in a microgrid
10,431,988 Alternative source module array characterization
10,437,207 Space comfort control detector
10,447,043 Verifying status of a termination end cap of a microinverter chain
10,468,993 Inverter for use in photovoltaic module
10,483,795 System and method for establishing communication with an array of inverters
10,511,178 Autonomous charge balancing of distributed AC coupled batteries with droop offset
10,511,187 Energy utilization point tracker inverter
10,516,270 Method and apparatus for coordination of generators in droop controlled microgrids using hysteresis
5,886,890 Power-supply system involving system interconnection
5,951,785 Photo-voltaic apparatus
6,331,794 Phase leg with depletion-mode device
7,663,342 Apparatus, system, and method for controlling multiple power supplies
7,755,916 Methods for minimizing double-frequency ripple power in single-phase power conditioners
7,768,155 Method and apparatus for improved burst mode during power conversion
7,796,412 Method and apparatus for converting direct current to alternating current
7,817,450 Method and apparatus for resetting a silicon controlled rectifier bridge
7,855,473 Apparatus for phase rotation for a three-phase AC circuit
7,899,632 Method and apparatus for anti-islanding of distributed power generation systems
7,916,505 Method and apparatus for a leakage energy recovery circuit
7,923,983 Method and apparatus for measuring AC voltages
7,925,459 Method and apparatus for determining an operating voltage for preventing photovoltaic cell reverse breakdown during power conversion
7,944,083 Method and apparatus for characterizing a circuit coupled to an AC line
7,986,122 Method and apparatus for power conversion with maximum power point tracking and burst mode capability
7,986,539 Method and apparatus for maximum power point tracking in power conversion based on dual feedback loops and power ripples
7,994,657 Modular system for unattended energy generation and storage
8,035,257 Method and apparatus for improved burst mode during power conversion
8,076,802 Method and apparatus for distributed VAr compensation
8,099,197 Method and system for distributed energy generator message aggregation
8,107,516 Power line communications apparatus
8,120,933 Power converter with reverse recovery avoidance
8,174,856 Configurable power supply assembly
8,179,147 Method and apparatus for detection and control of dc arc faul
8,183,852 Method and apparatus for determining AC voltage waveform anomalies
8,193,788 Method and device for controlling a configurable power supply to provide AC and/or DC power output
8,195,414 Method and apparatus for identifying an islanding condition
8,207,637 System and apparatus for interconnecting an array of power generating assemblies
8,215,070 Slate style roofing system with integrated solar panels
8,215,070 Methods for minimizing double-frequency ripple power in single-phase power conditioners
8,222,767 Apparatus for phase rotation for a three-phase AC circuit
8,227,942 System and apparatus for interconnecting an array of power generating assemblies
8,227,942 System and apparatus for interconnecting an array of power generating assemblies
8,257,106 Method and apparatus for interconnecting distributed power sources
8,279,642 Apparatus for converting direct current to alternating current using an active filter to reduce double-frequency ripple power of bus waveform
8,279,649 Apparatus and method for controlling a power inverter
8,284,574 Method and apparatus for controlling an inverter using pulse mode control
8,299,776 Method and apparatus for measuring AC voltages
8,319,378 Method and apparatus for improved burst mode during power conversion
8,325,499 Methods for minimizing double-frequency ripple power in single-phase power conditioners
8,350,411 Modular system for unattended energy generation and storage
8,359,176 Method and apparatus for determining and operating voltage for preventing photovoltaic cell reverse breakdown during power conversion
8,360,390 Method and apparatus for potting an electronic device
8,371,076 Solar panel support module and method of creating array of interchangeable and substitutable solar panel support modules
8,411,790 Power line communications apparatus
8,423,312 Voltage-sensed system and method for anti-islanding protection of grid-connected inverters
8,427,009 Distributed maximum power point tracking system, structure and process
8,428,783 Method and system for distributed energy generator message aggregation
8,435,056 Apparatus for coupling power generated by a photovoltaic module to an output
8,450,985 Energy recovery circuit
8,456,265 Transformer
8,456,876 Configurable power supply assembly
8,461,813 Method and device for controlling a configurable power supply to provide AC and/or DC power output
8,462,518 Power inverter docking system for photovoltaic modules
8,466,582 Method and apparatus for applying an electric field to a photovoltaic element
8,469,735 Mounting rail and power distribution system for use in a photovoltaic system
8,482,947 Apparatus and method for controlling DC-AC power conversion
8,482,947 Power inverter docking system for photovoltaic modules
8,492,932 Method and apparatus for improved burst mode during power conversion
8,503,200 Quadrature-corrected feedforward control apparatus and method for DC-AC power conversion
8,508,964 Variable duty cycle switching with imposed delay
8,537,572 Method and apparatus for providing power conversion using an interleaved flyback converter with automatic balancing
8,553,035 Method and apparatus for electrical power visualization
8,581,441 Distributed inverter and intelligent gateway
8,599,587 Modular photovoltaic power supply assembly
8,611,107 Method and system for controlling a multi-stage power inverter
8,620,476 Method and apparatus for smart climate control
8,624,561 Power conversion having energy storage with dynamic reference
8,626,616 Method and apparatus for managing installation information
8,634,216 Communication within a power inverter using transformer voltage frequency
8,659,922 Photovoltaic module-mounted AC inverter
8,666,561 Method and apparatus for determining a corrected monitoring voltage
8,717,780 Method and apparatus for converting direct current to alternating current
8,737,100 Method and apparatus for controlling an inverter using pulse mode control
8,749,395 Method and apparatus for indicating a disconnection within a distributed generator
8,754,627 Multi-mode power point tracking
8,760,895 Method and apparatus for distributed power generation
8,767,421 Power converter bus control method, system, and article of manufacture
8,796,884 Energy conversion systems with power control
8,797,767 Resonant power conversion circuit
8,811,049 Method and apparatus for distributed power generation
8,817,510 Apparatus and method for controlling a power inverter
8,823,356 Supply voltage auto-sensing
8,824,178 Parallel power converter topology
8,837,178 Method and apparatus for single-path control and monitoring of an H-bridge
8,842,454 Inverter array with localized inverter control
8,847,614 Electrical combiner box with improved functionality
8,859,884 Solar photovoltaic module safety shutdown system
8,860,242 Power-line communication coupling
8,873,252 Method and apparatus for extending zero-voltage switching range in a DC to DC converter
8,896,330 Method and apparatus for grid impedance detection
8,922,185 Device and method for global maximum power point tracking
8,929,094 Power inverter docking system for photovoltaic modules
8,937,817 Lossless commutation during operation of a power converter
8,963,378 Method and apparatus for electrical power visualization
8,963,378 Method and apparatus for interconnecting distributed power sources
8,963,923 Method and apparatus for electrical power visualization
8,964,401 Electrical insulator casing
8,988,096 Flash testing of photovoltaic modules with integrated electronics
9,013,171 Method and apparatus for detecting a zero-voltage condition across four quadrant switches
9,013,171 Method and apparatus for detecting a zero-voltage condition across four quadrant switches
9,030,302 Method and apparatus for three-phase power line communications
9,030,302 Method and apparatus for three-phase power line communications
9,031,140 Method and apparatus for transmitting combined power, control and data through an isolation barrier
9,031,140 Method and apparatus for transmitting combined power, control and data through an isolation barrier
9,048,693 Method and apparatus for detecting impairment of a solar array
9,048,693 Method and apparatus for detecting impairment of a solar array
9,048,744 Method and apparatus for resonant converter control
9,048,744 Method and apparatus for resonant converter control
9,065,354 Multi-stage power inverter for power bus communication
9,077,202 Power converter with series energy storage
9,093,919 Apparatus for converting direct current to alternating current using a frequency converter
9,105,765 Smart junction box for photovoltaic modules
9,105,765 Smart junction box for photovoltaic modules
9,112,417 Method and apparatus for providing power conversion using an interleaved flyback converter with automatic balancing
9,112,417 Method and apparatus for providing power conversion using an interleaved flyback converter with automatic balancing
9,112,522 Delta conversion analog to digital converter providing direct and quadrature output
9,112,522 Delta conversion analog to digital converter providing direct and quadrature output
9,118,273 Resilient mounting assembly for photovoltaic modules
9,118,273 Resilient mounting assembly for photovoltaic modules
9,130,570 Four quadrant bidirectional switch
9,131,620 Electrical combiner box with improved functionality
9,136,710 Multi-path converters for PV substrings
9,137,916 Method and apparatus for potting and electronic device
9,137,916 Method and apparatus for potting and electronic deviceMethod and apparatus for potting and electronic device
9,160,408 System and method for establishing communication with an array of inverters
9,165,275 Method and apparatus for identifying redeplyed distributed generator comonents
9,165,275 Method and apparatus for identifying redeplyed distributed generator comonents
9,184,652 Method and apparatus for inverter output current harmonic reduction
9,184,652 Method and apparatus for inverter output current harmonic reduction
9,190,839 Circuits and methods for limiting open circuit voltage of photovoltaic strings
9,196,770 Pole-mounted power generation systems, structures and processes
9,200,818 Enhanced solar panels, liquid delivery systems and associated processes for solar energy systems
9,225,256 Apparatus and method for controlling DC-AC power conversion
9,236,743 Apparatus and method for voltage and current balancing in generation of output power in power generation systems
9,247,595 LED Lighting Converter
9,247,595 LED Lighting Converter
9,253,935 Micro-inverter solar panel mounting
9,263,183 Modular photovoltaic power supply assembly
9,263,895 Distributed energy conversion systems
9,270,388 Method and apparatus for impulse noise mitigation for power line networking
9,276,635 Device, system, and method for communicating with a power inverter using power line communications
9,279,832 Method and apparatus for measuring AC voltages
9,281,419 Localized power point optimizer for solar cell installations
9,342,088 Power point tracking
9,353,973 Concentrating photovoltaic-thermal solar energy collector
9,356,184 Shingled solar cell module
9,369,126 Solar photovoltaic module safety shutdown system
9,373,958 Control techniques for photovoltaic power plants
9,379,627 Power conversion circuit arrangements utilizing resonant alternating current linkage
9,391,540 Method and apparatus for chaotic democratic pulse width modulation generation
9,397,252 Shingled solar cell module
9,397,611 Photovoltaic systems with local maximum power point tracking prevention and methods for operating same
9,401,451 Shingled solar cell module
9,407,169 Method and apparatus for distributed power generation
9,407,326 Method and apparatus for three-phase power line communications
9,423,448 Testing of module integrated electronics using power reversal
9,431,922 ARC fault protection for power conversion
9,436,198 Method and apparatus for power conversion
9,444,355 Method and apparatus for determining a bridge mode for power conversion
9,444,367 Method and apparatus for generating single-phase power from a three-phase resonant power converter
9,450,405 Method and apparatus for reactive power capable inverters
9,450,500 Method and apparatus for modulating lower powers in resonant converters
9,461,550 Method and apparatus for extending zero-voltage switching range in a DC to DC converter
9,461,552 Method and apparatus for power conversion
9,461,561 Method and apparatus for improved burst mode during power conversion
9,467,063 Technologies for interleaved control of an inverter array
9,472,691 Device for shunting current from photovoltaic circuit near the open circuit voltage and/or disconnecting solar module of a solar system
9,478,967 Method and apparatus for detection and control of DC arc faults
9,479,082 Method and apparatus for resonant power conversion
9,480,185 Double insulated heat spreader
9,480,185 Double insulated heat spreader
9,480,185 Double insulated heat spreader
9,484,484 Shingled solar cell module
9,495,774 Method and apparatus for electrical power visualization
9,496,794 Regulation of powertrain converter circuit
9,509,142 Method and apparatus for determining a corrected monitoring voltage
9,509,371 Method and apparatus for power line communications distortion compensation
9,531,191 Method and apparatus for power imbalance correction in a multi-phase power generator
9,531,300 Single-phase cycloconverter with integrated line-cycle energy storage
9,531,300 Single-phase cycloconverter with integrated line-cycle energy storage
9,537,420 Method and apparatus for power module output power regulation
9,547,033 Hierarchical fault prediction, detection and localization in PV systems with distributed electronics
9,557,367 Method and apparatus for monitoring maximum power point tracking
9,564,835 Inverter communications using output signal
9,583,255 Surge blocking inductor
9,583,946 Method and apparatus for power converter input voltage regulation
9,584,038 Ungrounded inverter enclosure and cabling
9,584,044 Technologies for converter topologies
9,585,044 Technologies for converter topologies
9,634,723 Communication between photovoltaic devices on a shared power line
9,635,783 Electronic component housing with heat sink
9,647,574 Multi-stage power inverter
9,660,451 Islanded operation of distributed power sources
9,680,301 Master-slave architecture for controlling operation of photovoltaic power plants
9,685,904 Photovoltaic system with improved DC connections and method of making same
9,692,319 Power system islanding detection with waveform fitting
9,698,869 Method and apparatus for three-phase power line communications
9,748,769 Serially connected micro-inverter system having concertina output voltage control
9,768,698 Method and apparatus for providing power conversion using an interleaved flyback converter with automatic balancing
9,774,189 Method and apparatus for multi-phase power conversion having modified burst current
9,780,253 Shingled solar cell module
9,793,854 Method and apparatus for ground fault detection
9,801,293 Energy storage/delivery device mounting plate
9,806,445 Method and apparatus for interconnecting distributed power sources
9,812,859 Distributed maximum power point tracking system, structure and process
9,817,424 Method and apparatus for maximum power point tracking for multi-input power converter
9,817,424 Method and apparatus for maximum power point tracking for multi-input power converter
9,819,182 Systemic optimization of photovoltaic apparatus
9,825,556 Converter topologies for common mode voltage reduction
9,859,814 Method and apparatus for independent control of multiple power converter sources
9,859,814 Method and apparatus for independent control of multiple power converter sources
9,866,139 Inductive power transfer converter
9,866,144 Three port converter with dual independent maximum power point tracking and dual operating modes
9,871,459 Method and apparatus for deriving current for control in a resonant power converter
9,876,132 Shingled solar cell module
9,882,077 Shingled solar cell module
9,882,598 Communication systems adaptable to power line communications
9,893,532 System and method for a mesh power system
9,893,678 Photovoltaic system with improved AC connections and method of making same
9,912,159 Method and apparatus for detection of local line phase in a multi-phase power line system
9,917,447 Systems and methods for synchronizing an appliance load to a local power generating capability
9,917,447 Systems and methods for synchronizing an appliance load to a local power generating capability
9,923,488 Soft switching technique for a grid-tied inverter
9,940,412 Method and apparatus for managing installation information
9,941,421 Solar photovaltaic module rapid shutdown and safety system
9,948,204 Method and apparatus for controlling resonant converter output power
9,952,263 Method and apparatus for grid impedance detection
9,954,462 Converter topologies and control
9,958,291 Self-service connection, data collection, and automation of metering and building systems, controls, and devices
9,960,707 Parallel power converter
9,960,712 Converter topologies and control
9,989,960 Alerting system
D644,609 Female connector
D644,610 Male connector
D666,974 Y-junction interconnect module
D673,114 Inverter module
D707,632 Trunk connector
D708,143 Drop cable connector
D734,653 AC module mounting bracket

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