Patents by Inventor Meir Gazit
Meir Gazit has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20150115984Abstract: A system for generation of electrical power including an inverter connected to a photovoltaic source including a theft prevention and detection feature. A first memory is permanently attached to the photovoltaic source. The first memory is configured to store a first code. A second memory is attached to the inverter. The second memory configured to store a second code. During manufacture or installation of the system, the first code is stored in the first memory attached to the photovoltaic source. The second code based on the first code is stored in the second memory. Prior to operation of the inverter, the first code is compared to the second code and based on the comparison; the generation of the electrical power is enabled or disabled.Type: ApplicationFiled: December 24, 2014Publication date: April 30, 2015Inventors: Guy Sella, Meir Adest, Meir Gazit, Lior Handelsman, Ilan Yoskovitch, Amir Fishelov, Yaron Binder, Yoav Galin
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Patent number: 9006569Abstract: A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber. The first chamber is adapted to receive a circuit board for electrical power conversion, and the metal heat sink is adapted to dissipate heat generated by the circuit board.Type: GrantFiled: May 24, 2013Date of Patent: April 14, 2015Assignee: Solaredge Technologies Ltd.Inventors: Guy Sella, Lior Handelsman, Vadim Shmukler, Meir Adest, Meir Gazit, Yoav Galin
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Patent number: 9000617Abstract: A circuit for combining direct current (DC) power including multiple direct current (DC) voltage inputs; multiple inductive elements connected in a series circuit having first and second end terminals and intermediate terminals. The inductive elements are adapted for operatively connecting respectively to the DC voltage inputs at the first and second end terminals and intermediate terminals. Multiple switches connect respectively with the inductive elements. A controller is configured to switch the switches periodically so that direct currents flowing through the inductive elements are substantially zero. A direct current voltage output is connected across one of the DC voltage inputs and a common reference to both the inputs and the output.Type: GrantFiled: May 5, 2009Date of Patent: April 7, 2015Assignee: Solaredge Technologies, Ltd.Inventors: Meir Gazit, Tzachi Glovinsky
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Patent number: 8947194Abstract: A system for generation of electrical power including an inverter connected to a photovoltaic source including a theft prevention and detection feature. A first memory is permanently attached to the photovoltaic source. The first memory is configured to store a first code. A second memory is attached to the inverter. The second memory configured to store a second code. During manufacture or installation of the system, the first code is stored in the first memory attached to the photovoltaic source. The second code based on the first code is stored in the second memory. Prior to operation of the inverter, the first code is compared to the second code and based on the comparison; the generation of the electrical power is enabled or disabled.Type: GrantFiled: May 26, 2010Date of Patent: February 3, 2015Assignee: Solaredge Technologies Ltd.Inventors: Guy Sella, Meir Adest, Meir Gazit, Lior Handelsman, Ilan Yoskovitch, Amir Fishelov, Yaron Binder, Yoav Galin
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Publication number: 20140320101Abstract: A digital average-input current-mode control loop for a DC/DC power converter. The power converter may be, for example, a buck converter, boost converter, or cascaded buck-boost converter. The purpose of the proposed control loop is to set the average converter input current to the requested current. Controlling the average input current can be relevant for various applications such as power factor correction (PFC), photovoltaic converters, and more. The method is based on predicting the inductor current based on measuring the input voltage, the output voltage, and the inductor current. A fast cycle-by-cycle control loop may be implemented. The conversion method is described for three different modes. For each mode a different control loop is used to control the average input current, and the control loop for each of the different modes is described. Finally, the algorithm for switching between the modes is disclosed.Type: ApplicationFiled: July 7, 2014Publication date: October 30, 2014Inventors: Amir Fishelov, Meir Gazit, Nikolay Radimov
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Publication number: 20140321175Abstract: A protection method in a distributed power system including of DC power sources and multiple power modules which include inputs coupled to the DC power sources. The power modules include outputs coupled in series with one or more other power modules to form a serial string. An inverter is coupled to the serial string. The inverter converts power input from the string and produces output power. When the inverter stops production of the output power, each of the power modules is shut down and thereby the power input to the inverter is ceased.Type: ApplicationFiled: July 3, 2014Publication date: October 30, 2014Inventors: Meir Adest, Guy Sella, Lior Handelsman, Yoav Galin, Amir Fishelov, Meir Gazit
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Publication number: 20140292085Abstract: A photovoltaic power generation system, having a photovoltaic panel, which has a direct current (DC) output and a micro-inverter with input terminals and output terminals. The input terminals are adapted for connection to the DC output. The micro-inverter is configured for converting an input DC power received at the input terminals to an output alternating current (AC) power at the output terminals. A bypass current path between the output terminals may be adapted for passing current produced externally to the micro-inverter. The micro-inverter is configured to output an alternating current voltage significantly less than a grid voltage.Type: ApplicationFiled: June 12, 2014Publication date: October 2, 2014Applicant: SOLAREDGE TECHNOLOGIES LTD.Inventors: Ilan Yoscovich, Meir Gazit, Tzachi Glovinsky, Yoav Galin
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Publication number: 20140265606Abstract: A method to control storage into and depletion from multiple energy storage devices. The method enables an operative connection between the energy storage devices and respective power converters. The energy storage devices are connectible across respective first terminals of the power converters. At the second terminals of the power converter, a common reference is set which may be a current reference or a voltage reference. An energy storage fraction is determined respectively for the energy storage devices. A voltage conversion ratio is maintained individually based on the energy storage fraction. The energy storage devices are stored individually with multiple variable rates of energy storage through the first terminals. The energy storage is complete for the energy storage devices substantially at a common end time responsive to the common reference.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: SOLAREDGE TECHNOLOGIES LTD.Inventor: Meir Gazit
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Publication number: 20140265629Abstract: A bypass mechanism for a photovoltaic module which switches out the electronics and switches in a bypass mechanism.Type: ApplicationFiled: March 17, 2014Publication date: September 18, 2014Applicant: Solaredge Technologies, Ltd.Inventors: Meir Gazit, Israel Gershman, Ehud Kirmayer, Leon Kupershmidt, Meir Adest
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Publication number: 20140247082Abstract: A voltage level shifting circuit with an input terminal and an output terminal. The level shifting circuit has a field-effect transistor (FET) switch with a gate attached to the input terminal, a drain attached to the output terminal and a source attached to a current changing mechanism. The current changing mechanism includes a current mirror circuit having an output connected between the source and an electrical earth. The output of the current mirror circuit is preferably adapted to change a current flowing between the drain and the source based on an input voltage applied to the gate.Type: ApplicationFiled: May 16, 2014Publication date: September 4, 2014Applicant: Solaredge Technologies, Ltd.Inventor: Meir Gazit
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Patent number: 8816535Abstract: A protection method in a distributed power system including of DC power sources and multiple power modules which include inputs coupled to the DC power sources. The power modules include outputs coupled in series with one or more other power modules to form a serial string. An inverter is coupled to the serial string. The inverter converts power input from the string and produces output power. When the inverter stops production of the output power, each of the power modules is shut down and thereby the power input to the inverter is ceased.Type: GrantFiled: December 4, 2008Date of Patent: August 26, 2014Assignee: Solaredge Technologies, Ltd.Inventors: Meir Adest, Guy Sella, Lior Handelsman, Yoav Galin, Amir Fishelov, Meir Gazit
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Patent number: 8773092Abstract: A digital average-input current-mode control loop for a DC/DC power converter. The power converter may be, for example, a buck converter, boost converter, or cascaded buck-boost converter. The purpose of the proposed control loop is to set the average converter input current to the requested current. Controlling the average input current can be relevant for various applications such as power factor correction (PFC), photovoltaic converters, and more. The method is based on predicting the inductor current based on measuring the input voltage, the output voltage, and the inductor current. A fast cycle-by-cycle control loop may be implemented. The conversion method is described for three different modes. For each mode a different control loop is used to control the average input current, and the control loop for each of the different modes is described. Finally, the algorithm for switching between the modes is disclosed.Type: GrantFiled: October 26, 2012Date of Patent: July 8, 2014Assignee: Solaredge Technologies Ltd.Inventors: Amir Fishelov, Meir Gazit, Nikolay Radimov
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Patent number: 8766696Abstract: A voltage level shifting circuit with an input terminal and an output terminal. The level shifting circuit has a field-effect transistor (FET) switch with a gate attached to the input terminal, a drain attached to the output terminal and a source attached to a current changing mechanism. The current changing mechanism includes a current mirror circuit having an output connected between the source and an electrical earth. The output of the current mirror circuit is preferably adapted to change a current flowing between the drain and the source based on an input voltage applied to the gate.Type: GrantFiled: January 27, 2011Date of Patent: July 1, 2014Assignee: Solaredge Technologies Ltd.Inventor: Meir Gazit
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Publication number: 20140119075Abstract: A distributed power system wherein a plurality of power converters are connected in parallel and share the power conversion load according to a prescribed function, but each power converter autonomously determines its share of power conversion. Each power converter operates according to its own power conversion formula/function, such that overall the parallel-connected converters share the power conversion load in a predetermined manner.Type: ApplicationFiled: November 5, 2013Publication date: May 1, 2014Applicant: Solaredge Ltd.Inventors: Meir Adest, Guy Sella, Lior Handelsman, Yoav Galin, Amir Fishelov, Meir Gazit, Tzachi Glovinski, Yaron Binder
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Patent number: 8599588Abstract: A distributed power system wherein a plurality of power converters are connected in parallel and share the power conversion load according to a prescribed function, but each power converter autonomously determines its share of power conversion. Each power converter operates according to its own power conversion formula/function, such that overall the parallel-connected converters share the power conversion load in a predetermined manner.Type: GrantFiled: August 28, 2012Date of Patent: December 3, 2013Assignee: Solaredge Ltd.Inventors: Meir Adest, Guy Sella, Lior Handelsman, Yoav Galin, Amir Fishelov, Meir Gazit, Tzachi Glovinski, Yaron Binder
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Publication number: 20130312995Abstract: A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber. The first chamber is adapted to receive a circuit board for electrical power conversion, and the metal heat sink is adapted to dissipate heat generated by the circuit board.Type: ApplicationFiled: May 24, 2013Publication date: November 28, 2013Applicant: SOLAREDGE TECHNOLOGIES LTD.Inventors: Guy Sella, Lior Handelsman, Vadim Shmukler, Meir Adest, Meir Gazit, Yoav Galin
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Patent number: 8531055Abstract: A distributed power system including multiple DC power sources and multiple power modules. The power modules include inputs coupled respectively to the DC power sources and outputs coupled in series to form a serial string. An inverter is coupled to the serial string. The inverter converts power input from the serial string to output power. A signaling mechanism between the inverter and the power module is adapted for controlling operation of the power modules.Type: GrantFiled: December 5, 2008Date of Patent: September 10, 2013Assignee: Solaredge Ltd.Inventors: Meir Adest, Guy Sella, Lior Handelsman, Yoav Galin, Amir Fishelov, Meir Gazit, Yaron Binder
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Publication number: 20130229844Abstract: An electronic circuit for converting power from a floating source of DC power to a dual direct current (DC) output is disclosed. The electronic circuit may include a positive input terminal and a negative input terminal connectible to the floating source of DC power. The dual DC output may connectible to the input of an inverter. A positive output terminal connected to the positive input terminal of the inverter and a negative output terminal and a ground terminal which may be connected to the input of the inverter. A series connection of a first power switch and a second power switch connected across the positive input terminal and the negative input terminal. A negative return path may include a first diode and a second diode connected between the negative input terminal and the negative output terminal. A resonant circuit may connect between the series connection and the negative return path.Type: ApplicationFiled: March 1, 2013Publication date: September 5, 2013Applicant: Solaredge Technologies Ltd.Inventors: Meir Gazit, Vadim Lubomirsky
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Publication number: 20130207469Abstract: A method of signaling between a photovoltaic module and an inverter module. The inverter module is connected to the photovoltaic module. In an initial mode of operation an initial code is modulated thereby producing an initial signal. The initial signal is transmitted from the inverter module to the photovoltaic module. The initial signal is received by the photovoltaic module. The operating mode is then changed to a normal mode of power conversion, and during the normal mode of operation a control signal is transmitted from the inverter to the photovoltaic module. A control code is demodulated and received from the control signal. The control code is compared with the initial code producing a comparison. The control command of the control signal is validated as a valid control command from the inverter module with the control command only acted upon when the comparison is a positive comparison.Type: ApplicationFiled: January 28, 2011Publication date: August 15, 2013Inventors: Guy Sella, Meir Adest, Lior Handelsman, Yoav Galin, Amir Fishelov, Meir Gazit, Ilan Yoskovitch, Yaron Binder
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Patent number: 8476524Abstract: A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber. The first chamber is adapted to receive a circuit board for electrical power conversion, and the metal heat sink is adapted to dissipate heat generated by the circuit board.Type: GrantFiled: May 24, 2010Date of Patent: July 2, 2013Assignee: Solaredge Technologies Ltd.Inventors: Guy Sella, Lior Handelsman, Vadim Shmukler, Meir Adest, Meir Gazit, Yoav Galin