Patent application number | Description | Published |
20090021877 | Method and apparatus for anti-islanding of distributed power generation systems - A method and apparatus for anti-islanding of distributed power generation systems having an inverter comprising a phase locked loop (PLL), a phase shift generator for injecting a phase shift into the PLL during at least one sample period, and a phase error signature monitor for monitoring at least one phase error response of the PLL during the at least one sample period. | 01-22-2009 |
20090079383 | Method and apparatus for power conversion with maximum power point tracking and burst mode capability - An apparatus and method for converting a DC input power to a DC output power. The apparatus comprises an energy storage module and a burst mode controller. The burst mode controller causes energy to be stored in the energy storage module during at least one storage period, and further causes the energy to be drawn from the energy storage module during at least one burst period. During the at least one burst period, the DC output power is greater than the DC input power. Additionally, the burst mode controller employs a maximum power point tracking (MPPT) technique for operating a device providing the DC input power proximate a maximum power point (MPP). | 03-26-2009 |
20090086514 | Method and apparatus for providing power conversion using an interleaved flyback converter with automatic balancing - A method and apparatus for converting DC input power to DC output power. The apparatus comprises a plurality of parallel connected flyback circuits. A controller is coupled to the switches within the flyback circuits to provide accurate timing and automatic current balancing amongst the plurality of flyback circuits. | 04-02-2009 |
20110101786 | Method and apparatus for anti-islanding of distributed power generation systems - A method and apparatus for identifying an islanding condition. In one embodiment, the method comprises altering a phase error response within a phase locked loop (PLL), and determining whether the islanding condition exists based on the altered phase error response. | 05-05-2011 |
20110187574 | REMOTE CONTROLLED POWER CONSUMING DEVICE AND MODULE - A power consuming device that includes a control circuitry controlling a plurality of components installed in the power consuming device comprises a communication module receiving communication signals from a remote source, and a control module including an electrical relay coupled between an external power source and the control circuitry, the control module coupled between the external power source and the communication module to provide power from the external power source to the communication module, and wherein the electrical relay is configured to transmit power from the power source to the control circuitry when the communication signals energize the electrical relay. A communication assembly utilized in a power consuming device is also described herein. | 08-04-2011 |
20120033392 | Modular Junction Box for a Photovoltaic Module - A junction box for electrically connecting a photovoltaic (PV) module to a power distribution system, the PV module having a plurality of conductors for electrically connecting the PV module to the junction box. The junction box includes a housing having a mounting side configured to be mounted on the PV module and a power transfer structure mounted within the housing. The power transfer structure includes a plurality of conductive connectors and a transfer interface. Each conductive connector forms an electrical interface to the PV module. The transfer interface couples the junction box to the power distribution system. The junction box also includes a user-removable control board mounted within the housing. The power transfer structure interfaces with said control board to convey power from the PV module to the control board. | 02-09-2012 |
20130002045 | Power Harvesting Device - Techniques are described to harvest power from a single current carrying conductor to furnish power to a powered device. The techniques employ a power harvesting device that is coupled to the conductor. In implementations, the conductor has a first path and a second path. The power harvesting device includes a first switch coupled to the second path. An energy storing element is coupled to the first path and configured to store energy based upon the direct current flowing through the first path. The power harvesting device also includes a power condition and management device coupled to the energy storing element configured to switch the first switch to a closed configuration when the energy storing element is measured to have a predefined high voltage threshold, and to switch the first switch to an open configuration when the energy storing element is measured to have a predefined low voltage threshold. | 01-03-2013 |
20140016372 | METHOD AND APPARATUS FOR PROVIDING POWER CONVERSION USING AN INTERLEAVED FLYBACK CONVERTER WITH AUTOMATIC BALANCING - Method and apparatus for converting DC input power to DC output power. In one embodiment, the apparatus comprises a first flyback circuit and a second flyback circuit, coupled in parallel, for providing DC-to-DC conversion; and a controller for (i) determining a first peak current, based on a predetermined peak current, for operating the first flyback circuit, (ii) determining a second peak current, based on the predetermined peak current, for operating the second flyback circuit, and (iii) operating the first and the second flyback circuits at switching frequencies dependent on the first and the second peak currents, respectively, to achieve timing synchronization for interleaved operation of the first and the second flyback circuits. | 01-16-2014 |
20140266040 | ELECTRIC VEHICLE SUPPLY EQUIPMENT HAVING INCREASED COMMUNICATION CAPABILITIES - An electric vehicle support equipment (EVSE) system that includes a nozzle ( | 09-18-2014 |
20140268473 | ELECTRIC VEHICLE SUPPORT EQUIPMENT HAVING A SMART PLUG WITH A RELAY CONTROL CIRCUIT - A smart plug for coupling an electric vehicle to a power supply includes a relay including contacts, the relay configured to operate in a closed state to enable power to be supplied to the electric vehicle and an open state to prohibit power from being supplied to the electric vehicle. The smart plug also includes a microcontroller (MCU) coupled to the relay, the microcontroller outputting a control signal to operate the relay in the closed state. The smart plug further includes a zero crossing detector (ZCD) coupled to the relay, the ZCD outputting a close signal to the relay when a voltage of the power is substantially zero and outputting an open signal to the relay when a current of the power is substantially zero. | 09-18-2014 |