Abstract: The present disclosure includes a conversion circuit (10) having a switching element and converting DC voltage into AC voltage by switching operation of the switching element, an isolation transformer (3) for which an input side is connected to the conversion circuit (10), a rectifier circuit (4) connected to an outside of the isolation transformer (3), a resonance circuit connected to the output side of the isolation transformer (3), and a control circuit (100) for controlling the switching element, wherein the control circuit (100) 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 (3).

Abstract: The present invention is related to a control method for controlling a power converter including a first power conversion circuit 11 and a second power conversion circuit 12 by using a control circuit 13. The first power conversion circuit 11 is connected to a solar cell module 1 and a capacitor 2, converts output power of the solar cell module 1, and outputs the converted power to the capacitor 2, the second power conversion circuit 12 is connected to the capacitor 2, and converts a voltage at a connection terminal connected to the capacitor 2. The control method comprises step of controlling operation of the second power conversion circuit 12 based on the output voltage of the solar cell module 1, to use output power of the second power conversion circuit 12 for charging the capacitor 2.

Abstract: The present disclosure includes a conversion circuit (10) having a switching element and converting DC voltage into AC voltage by switching operation of the switching element, an isolation transformer (3) for which an input side is connected to the conversion circuit (10), a rectifier circuit (4) connected to an outside of the isolation transformer (3), a resonance circuit connected to the output side of the isolation transformer (3), and a control circuit (100) for controlling the switching element, wherein the control circuit (100) 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 (3).

Abstract: The present invention is related to a control method for controlling a power converter including a first power conversion circuit 11 and a second power conversion circuit 12 by using a control circuit 13. The first power conversion circuit 11 is connected to a solar cell module 1 and a capacitor 2, converts output power of the solar cell module 1, and outputs the converted power to the capacitor 2, the second power conversion circuit 12 is connected to the capacitor 2, and converts a voltage at a connection terminal connected to the capacitor 2. The control method comprises step of controlling operation of the second power conversion circuit 12 based on the output voltage of the solar cell module 1, to use output power of the second power conversion circuit 12 for charging the capacitor 2.

Abstract: 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 ELUMO>EC or equation EHOMO<EV.

Abstract: 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 ELUMO>EC or equation EHOMO<EV.

Abstract: There are included: a metal member having a groove formed on a front side surface thereof; a thermally conductive member provided in an inside of the groove and having a thermal conductivity in an X-axial direction on the front side surface higher than a thermal conductivity in a Y-axial direction orthogonal to the X-axial direction on the front side surface; and a semiconductor element provided on the front side surface of the metal member, and at least a part of which is in contact with the thermally conductive member.

Abstract: In a door control system, a reservation signal is transmitted when a user operates a mobile device and reserves opening a door, a control device transmits a reservation acceptance signal and starts transmitting a response request signal upon receipt of the reservation signal. When the mobile device receives the reservation acceptance signal, a mobile device memory stores information indicating that the reservation is accepted and authorized and a notification unit notifies the user of authorization. When the mobile device receives the response request signal, the mobile device transmits a response signal including the stored information indicating authorization. When the control device receives the response signal including the information indicating authorization in response to the response request signal, a controller performs at least one of unlocking or opening the door.

Abstract: A vehicle communication system includes a vehicle-mounted device and a portable device. In the vehicle communication system, a transmission unit transmits a first to third radio signals having intensities weaker in this order, a measurement unit measures an intensity of each of the radio signals, and a determination unit that determines whether an intensity difference between any two of the radio signals among the radio signals measured by the measurement unit is larger than a threshold value. Control of a target mounted on the vehicle is permitted if the intensity difference is larger than the threshold value.

Abstract: An in-vehicle communication system includes: a plurality of local ECUs (vehicle control devices) connected to networks of buses, and configured to control an in-vehicle device; an OBDII port which is a communication port to an outside; and an illicit act detection sensor configured to detect an illicit act on a vehicle. Each local ECU includes a reprogramming receiver and a reprogramming controller. The reprogramming receiver receives a reprogramming request signal and reprogramming data from a reprogramming device connected to the OBDII port. Reprogramming for rewriting a software program of a target local ECU is executed according to the reprogramming request signal and the reprogramming data. When the illicit act detection sensor detects an illicit act, the reprogramming controller prohibits execution of reprogramming.

Abstract: In a case where a back surface of an SiC semiconductor wafer, which is provided by a C surface, is covered with a back surface electrode and a scribe line cannot be confirmed, a reference line is formed before dicing. As a result, even when a processing upper surface from which dicing is carried out is a C surface, the dicing can be performed by estimating a scribe line with reference to the reference line. Accordingly, even if the semiconductor wafer is cut at a higher speed than that in the conventional art, a high-quality SiC semiconductor device with less chipping can be manufactured. A blade abrasion can be reduced, and costs can be also reduced.

Abstract: 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.

Abstract: A vehicle control apparatus includes: a vehicle-mounted transmitter which transmits a first response request signal; a vehicle-mounted receiver which receives, from a portable device, a response signal to the first response request signal; and a controller which allows an operation for welcoming a user carrying the portable device to a vehicle according to a reception state of the response signal. When intermittently transmitting the first response request signal at predetermined intervals via the vehicle-mounted transmitter, the controller determines whether condition set in advance is established. When the condition is established, the controller transmits a second response request signal different from the first response request signal. When the vehicle-mounted receiver receives a response signal which is transmitted from the portable device as a response to the second response request signal, the controller continues to transmit the second response request signal via the vehicle-mounted transmitter.

Abstract: An in-vehicle communication system includes: a plurality of local ECUs (vehicle control devices) connected to networks of buses, and configured to control an in-vehicle device; an OBDII port which is a communication port to an outside; and an illicit act detection sensor configured to detect an illicit act on a vehicle. Each local ECU includes a reprogramming receiver and a reprogramming controller. The reprogramming receiver receives a reprogramming request signal and reprogramming data from a reprogramming device connected to the OBDII port. Reprogramming for rewriting a software program of a target local ECU is executed according to the reprogramming request signal and the reprogramming data. When the illicit act detection sensor detects an illicit act, the reprogramming controller prohibits execution of reprogramming.

Abstract: An in-vehicle communication system includes vehicle control devices and a communication management device connected to a network. The communication management device includes: an abnormality detection unit that detects an abnormality and a kind of the abnormality on the basis of reception information received from any one of the vehicle control devices during communication between the vehicle control devices; an abnormality notification unit that notifies the other vehicle control devices of the kind of the abnormality in correspondence with the kind of the abnormality; and a transmission control unit that transmits the reception information to the other vehicle control devices in correspondence with the kind of the abnormality. The vehicle control devices execute a predetermined control in correspondence with the kind of the abnormality that is given in notification from the communication management device.

Abstract: A vehicle control system includes a vehicle control apparatus, a first portable device, and a second portable device. The first portable device transmits a first signal to the vehicle control apparatus based on the fact that a first operation by a user is performed on the second portable device. When the vehicle control apparatus receives the first signal from the first portable device, the vehicle control apparatus intermittently transmits a second signal to the first portable device. The first portable device measures a signal strength of the second signal received from the vehicle control apparatus, based on the fact that a second operation by the user is performed on the second portable device after the first operation. The vehicle control apparatus or the first portable device sets, as a distance threshold, a distance between the first portable device and the vehicle calculated from the measured signal strength.

Abstract: 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.

Abstract: In a door control system, a reservation signal is transmitted when a user operates a mobile device and reserves opening a door, a control device transmits a reservation acceptance signal and starts transmitting a response request signal upon receipt of the reservation signal. When the mobile device receives the reservation acceptance signal, a mobile device memory stores information indicating that the reservation is accepted and authorized and a notification unit notifies the user of authorization. When the mobile device receives the response request signal, the mobile device transmits a response signal including the stored information indicating authorization. When the control device receives the response signal including the information indicating authorization in response to the response request signal, a controller performs at least one of unlocking or opening the door.

Abstract: A vehicle communication system includes a vehicle-mounted device and a portable device. In the vehicle communication system, a transmission unit transmits a first to third radio signals having intensities weaker in this order, a measurement unit measures an intensity of each of the radio signals, and a determination unit that determines whether an intensity difference between any two of the radio signals among the radio signals measured by the measurement unit is larger than a threshold value. Control of a target mounted on the vehicle is permitted if the intensity difference is larger than the threshold value.

Abstract: A vehicle control system includes a vehicle control apparatus mounted on a vehicle for controlling the vehicle, an electronic key carried by a user for performing communication with the vehicle control apparatus, and a portable device carried by the user for performing communication with the electronic key. When detecting user's getting in or out of the vehicle, the vehicle control apparatus determines a location of the electronic key based on communication with the electronic key. When the location of the electronic key is in the vehicle and the user has no intention of getting out of the vehicle, communication between the electronic key and the portable device is brought into a connected state. When the location of the electronic key is outside the vehicle and the user has no intention of getting in the vehicle, communication between the electronic key and the portable device is brought into a disconnected state.