Nissan Motor Company Limited

Renault S.a.s.

Kabushiki Kaisha Powrex

Yosuke Tomita

Shigeharu Yamagami

Yusuke Zushi

Keisuke Takemoto

Yuji Saito

Hayato Chikugo

Tetsuya Hayashi

Masashi Sato

Yuichi Iwasaki

Yasuaki Hayami

Kazuhiro Uchida

Keiichiro Numakura

Koji Hasegawa

Yasuhiro Hotta

Kazunori Wakabayashi

Naotoshi Kinoshita

Tarou Endou

Shuichiro Fukuda

Hitoshi Kamada

The present disclosure includes a conversion circuit () having a switching element and converting DC voltage into AC voltage by switching operation of the switching element, an isolation transformer () for which an input side is connected to the conversion circuit (), a rectifier circuit () connected to an outside of the isolation transformer (), a resonance circuit connected to the output side of the isolation transformer (), and a control circuit () for controlling the switching element, wherein the control circuit () turning on the switching element in a period when current flowing through resonance circuit flows from a low potential side terminal to a high potential side terminal of the switching element via the isolation transformer ().

Power converting device, and control method for power converting device

The present invention is related to a control method for controlling a power converter including a first power conversion circuitand a second power conversion circuitby using a control circuit. The first power conversion circuitis connected to a solar cell moduleand a capacitor, converts output power of the solar cell module, and outputs the converted power to the capacitor, the second power conversion circuitis connected to the capacitor, and converts a voltage at a connection terminal connected to the capacitor. The control method comprises step of controlling operation of the second power conversion circuitbased on the output voltage of the solar cell module, to use output power of the second power conversion circuitfor charging the capacitor

Method for controlling power conversion device, and power conversion device

A photovoltaic device includes an organic semiconductor and an inorganic semiconductor. The organic semiconductor includes a photoactive region that generates excitons. The inorganic semiconductor has piezoelectricity and includes a dissociation region for dissociating carriers included in the excitons. A relationship of energy levels between the photoactive region and the dissociation region satisfies at least one equation E&#x3e;Eor equation E&#x3c;E.

Photovoltaic device

A fuel cell system includes a compressor configured to adjust a flow rate of cathode gas to be supplied to a fuel cell and a pressure regulating valve configured to adjust a pressure of the supplied cathode gas. The fuel cell system further includes a controller programmed to calculate a target pressure of the supplied cathode gas while taking into consideration a load of the fuel cell and a heat protecting requirement of the fuel cell system, calculate a target flow rate of the supplied cathode gas in accordance with the load of the fuel cell and the target pressure of the cathode gas, and control the compressor and the pressure regulating valve in accordance with the target pressure and the target flow rate. The controller is further programmed to increase the target flow rate of the cathode gas as the target pressure of the cathode gas becomes lower.

Fuel cell system and method of controlling fuel cell system

A fuel cell system supplies anode and cathode gases, and generates power through an electrochemical reaction of the gases in accordance with a load. The system includes a compressor that supplies the cathode gas to a fuel cell stack, and a pressure regulator valve that adjusts the pressure of the cathode gas in the fuel cell stack. The system sets a target cathode pressure based on a power generation request to the fuel cell stack, and controls an operation amount of the compressor and an opening degree of a pressure regulator valve based on the target cathode pressure. The temperature of air discharged by the compressor is restricted to an upper temperature limit by restricting the operation amount of the compressor and/or the opening degree of the pressure regulator valve based on two parameters, i.e., the inlet temperature and the torque of the compressor.

Fuel cell system and method for controlling fuel cell system

A partition portion includes a proximal portion fixed to the outer periphery of the peripheral wall portion and a sealing member mounted to the proximal portion in a manner that the sealing member is allowed to move in inner and outer circumferential directions of the peripheral wall portion. When receiving a force toward an outer circumferential direction, the sealing member is moved in the outer circumferential direction, and a distal end portion thereof is held in press-contact with a sliding contact portion of a ventilation member with a force generated along with the above-mentioned force.

Coating device

Growing community of inventors

Kanagawa, Japan

Yosuke Tomita