About 39 results
https://drivepatents.com/patents/998613 · 5 Sep 2012
According to one embodiment, an apparatus includes a controller which outputs a signal for controlling ON and OFF of a switch (Sw_chop) which changes over connection between a second input terminal (14) and the output end of a coil (L_chop). The controller...
https://drivepatents.com/patents/1000259 · 18 Jul 2012
A micro-inverter (402) having input terminals and output terminals is adapted for inverting an input DC power received at the input terminals to an output alternating current (AC) power at the output terminals which have a voltage significantly less than a...
https://drivepatents.com/patents/1000479 · 11 Jul 2012
A power supply device includes a fuel-cell power device which supplies a direct current (DC) power to one or more load devices using fuel cells as an input source; and a control unit which controls an output from the fuel-cell power device. In the power su...
https://drivepatents.com/patents/1000889 · 27 Jun 2012
The photovoltaic system (1) comprises a photovoltaic module (2), an inverter, a control unit (4), a power meter (8), and an electrically rechargeable battery pack. The system is designed to supply a first electrical load and/or a public electricity network...
https://drivepatents.com/patents/1003625 · 4 Apr 2012
A method of supplying power from a solar cell module to a load includes measuring the output of the solar cell module, and controlling a power converter having a preset duty ratio to start operating in accordance with the measured output. Additionally, a p...
https://drivepatents.com/patents/1004793 · 29 Feb 2012
A power generation system (210) includes photovoltaic (PV) modules (212) for generating power and power converters (214) coupled to receive power from the PV modules (212). The power generation system (210) further includes converter controllers (222) to c...
https://drivepatents.com/patents/1008710 · 12 Oct 2011
The method connecting direct-voltage input to a power supply grid via an alternating-voltage output. The inverter is involved in a power flow interaction with the grid in such a manner that leakage current (IA) occurs during operation of the inverter, and ...
https://drivepatents.com/patents/1009501 · 14 Sep 2011
This invention enables a power conditioner of a photovoltaic system to operate at higher accuracy. A chopper circuit (5), a capacitor (18) connected in parallel to the chopper circuit, and a control circuit (9) for controlling ON/OFF of switch elements (10...
https://drivepatents.com/patents/1011258 · 6 Jul 2011
A maximum power point tracking (MPPT) converter of a renewable energy storage system for tracking and extracting a maximum power from a renewable energy source to provide the maximum power to a DC link. The MPPT converter includes an MPPT controller changi...
https://drivepatents.com/patents/1011283 · 6 Jul 2011
The system comprises: - several main photovoltaic generators (Gp1-Gpn), - several additional photovoltaic generators (Ga1-Gan), each one made up of several photovoltaic generator blocks (B1-Bn) - several inverters (I1-In) intended to convert direct voltage...