Abstract: In an organic EL display device, a frame region provided outside a display region is provided with a damming wall extending on an outer periphery of the display region and a second lead-out wiring line extending across the damming wall from the display region side to an outside of the frame region. The damming wall includes a bank portion having a projecting shape and provided, in a part in which the second lead-out wiring line extends, on both sides in a direction in which the second lead-out wiring line extends with respect to a top portion of the damming wall. The bank portion is lower than a top portion of a second damming wall and forms, between the bank portion and the top portion, a trap portion having a recessed shape.

Abstract: A second connection wire is electrically connected to a first connection wire via a display-side contact portion and terminal-side contact portion in a bending section. The first connection wire and the second connection wire do not overlap each other at least partly between the display-side contact portion and terminal-side contact portion.

Abstract: An electric vehicle disclosed herein may include an AC inlet connectable with an AC power supply outside the vehicle, a main battery, and a power unit. The power unit may be connected to the main battery by a first battery power cable and a second battery power cable, and connected to the AC inlet by an AC inlet power cable. Inside the power unit, the AC inlet power cable may be connected to the second battery power cable via an AC/DC converter. Further, the first battery power cable may be connected to a power cable of a device other than the AC/DC converter.

Abstract: An electric vehicle disclosed herein may include an AC inlet connectable with an AC power supply outside the vehicle, a main battery, and a power unit. The power unit may be connected to the main battery by a first battery power cable and a second battery power cable, and connected to the AC inlet by an AC inlet power cable. Inside the power unit, the AC inlet power cable may be connected to the second battery power cable via an AC/DC converter. Further, the first battery power cable may be connected to a power cable of a device other than the AC/DC converter.

Abstract: An inverter includes a first series circuit in which a first switching element and a second switching element are connected in series; a capacitor connected in parallel to the first series circuit; a first current detection device that detects current that flows in the first series circuit; and a discharge test execution device that outputs a signal of bringing the first switching element and the second switching element to a conducting state, and that outputs a signal of switching one of the first switching element and the second switching element to a non-conducting state before predefined power flows in the first switching element, based on a detection result by the first current detection device.

Abstract: After turning on a switching element by receiving a discharge command from a motor ECU via a control circuit, a drive circuit of a discharge device causes, upon receipt of an overheat protection command from an overheat protection circuit, the switching element to turn off and keeps the resulting state thereof. And, the motor ECU sends the discharge command, after establishment of a diagnostic condition, to the control circuit of the discharge device and determines that the discharge device is abnormal if an electric current will not flow through a discharge resistor and the switching element.

Abstract: In a test of discharging a capacitor by electrically turning on a first switching element and a second switching element that are inserted in series in a conductor connecting a positive electrode and a negative electrode of the capacitor, a discharge current that passes through the first and second switching elements tend to apply stress on the first and second switching elements. In this discharge test, while a first control signal for putting the first switching element into a low resistance state is being applied to the first switching element, a second control signal increasing a voltage thereof over time is applied to the second switching element, and application of one of or both of the first and second control signals is stopped when a current detector detects a current. Since a discharge test ends when a limited discharge current starts flowing, stress associated with the discharge test is reduced.

Abstract: An inverter includes a first series circuit in which a first switching element and a second switching element are connected in series; a capacitor connected in parallel to the first series circuit; a first current detection device that detects current that flows in the first series circuit; and a discharge test execution device that outputs a signal of bringing the first switching element and the second switching element to a conducting state, and that outputs a signal of switching one of the first switching element and the second switching element to a non-conducting state before predefined power flows in the first switching element, based on a detection result by the first current detection device.

Abstract: An electric motor vehicle includes an inverter, an electric motor, a power supply circuit, and a controller. The power supply circuit converts alternating current that the electric motor serving as a generator generates into direct current. The controller is supplied with electric power from the power supply circuit and controls switching elements of an inverter. The power supply circuit includes a transformer and a voltage regulator. The transformer includes a primary coil and a secondary coil, and the primary coil is connected to the electric motor. The voltage regulator adjusts the output of the secondary coil of the transformer to a predetermined direct-current voltage.

Abstract: A vehicle uses electric power from a mounted power storage device to drive a motor generator by a PCU to generate traction driving force. The vehicle can execute, as a function to discharge residual electric charge from a capacitor in PCU, MG discharging in which current is applied to the motor generator while preventing generation of torque for discharging, and PCU discharging through the conduction loss of switching elements in the PCU for discharging. In an event of detecting collision of the vehicle, an HV-ECU executes PCU discharging by priority, and executes MG discharging when the voltage of the capacitor is high.

Abstract: A power control unit is provided with a converter; a filter capacitor that is connected onto one side of converter; a smoothing capacitor that is connected onto the other side of converter; an MG-ECU that is operated to control converter with power supplied from filter capacitor; and a casing that houses these constituent elements therein. In order to electrically discharge filter capacitor and smoothing capacitor, an MG-ECU controls converter in such a manner as to alternately repeat ON/OFF of an npn-type transistor for a lower arm of an IPM and ON/OFF of an npn-type transistor for an upper arm of IPM, and further, to set a time of ON of npn-type transistor for the upper arm longer than that of ON of npn-type transistor for the lower arm.

Abstract: A motor vehicle includes an electric motor, a smoothing capacitor, a discharge device and a controller. The smoothing capacitor smoothes the electric current that is used to drive the electric motor. The discharge device is capable of releasing the electric charge stored in the capacitor. The controller is configured to receive sensor data that indicates a state of the motor vehicle and determine whether to activate a discharge device, based on the sensor data received.

Abstract: After turning on a switching element by receiving a discharge command from a motor ECU via a control circuit, a drive circuit of a discharge device causes, upon receipt of an overheat protection command from an overheat protection circuit, the switching element to turn off and keeps the resulting state thereof. And, the motor ECU sends the discharge command, after establishment of a diagnostic condition, to the control circuit of the discharge device and determines that the discharge device is abnormal if an electric current will not flow through a discharge resistor and the switching element.

Abstract: A vehicle uses electric power from a mounted power storage device to drive a motor generator by a PCU to generate traction driving force. The vehicle can execute, as a function to discharge residual electric charge from a capacitor in PCU, MG discharging in which current is applied to the motor generator while preventing generation of torque for discharging, and PCU discharging through the conduction loss of switching elements in the PCU for discharging. In an event of detecting collision of the vehicle, an HV-ECU executes PCU discharging by priority, and executes MG discharging when the voltage of the capacitor is high.

Abstract: An electric motor vehicle includes an inverter, an electric motor, a power supply circuit, and a controller. The power supply circuit converts alternating current that the electric motor serving as a generator generates into direct current. The controller is supplied with electric power from the power supply circuit and controls switching elements of an inverter. The power supply circuit includes a transformer and a voltage regulator. The transformer includes a primary coil and a secondary coil, and the primary coil is connected to the electric motor. The voltage regulator adjusts the output of the secondary coil of the transformer to a predetermined direct-current voltage.

Abstract: In a test of discharging a capacitor by electrically turning on a first switching element and a second switching element that are inserted in series in a conductor connecting a positive electrode and a negative electrode of the capacitor, a discharge current that passes through the first and second switching elements tend to apply stress on the first and second switching elements. In this discharge test, while a first control signal for putting the first switching element into a low resistance state is being applied to the first switching element, a second control signal increasing a voltage thereof over time is applied to the second switching element, and application of one of or both of the first and second control signals is stopped when a current detector detects a current. Since a discharge test ends when a limited discharge current starts flowing, stress associated with the discharge test is reduced.

Abstract: A power control unit is provided with a converter; a filter capacitor that is connected onto one side of converter; a smoothing capacitor that is connected onto the other side of converter; an MG-ECU that is operated to control converter with power supplied from filter capacitor; and a casing that houses these constituent elements therein. In order to electrically discharge filter capacitor and smoothing capacitor, an MG-ECU controls converter in such a manner as to alternately repeat ON/OFF of an npn-type transistor for a lower arm of an IPM and ON/OFF of an npn-type transistor for an upper arm of IPM, and further, to set a time of ON of npn-type transistor for the upper arm longer than that of ON of npn-type transistor for the lower arm.

Abstract: A stabilized DC power supply circuit of the present invention includes an output current limiting circuit for limiting an output current of an output transistor, and a correction circuit for correcting variation of restriction in the output current caused by variation in a current amplification factor of the output transistor. The correction circuit includes a correcting transistor that is manufactured in the same manufacturing process as the output transistor and formed so as to have the same tendency of manufacturing process variation in current amplification factor etc. as that of the output transistor.

Abstract: A stabilized DC power supply circuit of the present invention includes an output current limiting circuit for limiting an output current of an output transistor, and a correction circuit for correcting variation of restriction in the output current caused by variation in a current amplification factor of the output transistor. The correction circuit includes a correcting transistor that is manufactured in the same manufacturing process as the output transistor and formed so as to have the same tendency of manufacturing process variation in current amplification factor etc. as that of the output transistor.

Abstract: An amplifier circuit includes first and second resistors that are serially connected to each other between bases of first and second transistors that flow the same current as that in a differential transistor pair made up of two transistors. A capacitor is provided between a junction of the first and second resistors and the collector of the first transistor on the output side. The amplifier circuit has a gain whose frequency characteristic is determined by a low-pass filter realized by the second resistor and capacitor connected to the second transistor. The frequency characteristic lowers a gain of the frequency that causes output oscillation, thereby preventing output oscillation. The two resistors divide a resistance between the bases of the sub transistors, so as to reduce a resistance of the second resistor. As a result, the effect of phase compensation becomes weaker and the load response characteristic of the power supply improves.