Abstract: A semiconductor module includes a switching element, a sealing portion, a drain terminal, a source terminal, and a gate terminal. The drain terminal is connected to a drain of the switching element. The source terminal is connected to a source of the switching element. The gate terminal is connected to a gate of the switching element. The sealing portion has a rectangular shape in a plan view, and molds the switching element. Each of the drain terminal, the source terminal, and the gate terminal is exposed from the sealing portion on a short side of the rectangle.

Abstract: A semiconductor package includes semiconductor elements, a lead frame, a crosslinked member, and sealing resin. Each of the semiconductor elements has a first surface and a second surface located on a side opposite to the first surface. The lead frame has a mounting portion and a connected portion. At least one of the semiconductor elements mounts on the mounting portion. The connected portion is separated from the mounting portion. The crosslinked member is connected to the second surface of at least one of the semiconductor elements and the connected portion to electrically connect at least one of the semiconductor elements and the connected portion. The sealing resin is electrically insulated and covers a portion of the lead frame, the semiconductor elements and the crosslinked member. At least one of the semiconductor elements is different from another one of the semiconductor elements in element size or power consumption.

Abstract: An electronic device includes: a wiring board; an electric connection wiring connected to a power supply; motor connection wirings arranged on a peripheral side of the wiring board and connected to the electric motor; and semiconductor modules having semiconductor elements and a resin mold. The semiconductor modules are arranged at a position on the electric connection wiring or on the peripheral side of the electric connection wiring and on a center side of the motor connection wiring. At least a part of electrodes of the plurality of semiconductor modules is mounted on the electric connection wiring.

Abstract: A semiconductor module includes: semiconductor elements having a gate electrode, a first electrode and a second electrode; a resin mold; and conductive members connected to at least one of the semiconductor elements and having a common wiring electrode exposed from the resin mold and connected to the first electrode or the second electrode and a non-common wiring electrode exposed from the resin mold and connected to an electrode of the semiconductor element different from the common wiring electrode. A width of a common wiring connected to the common wiring electrode is wider than the non-common wiring electrode. The common wiring is arranged from one side to an opposite side on a surface of the resin mold, on which the common wiring electrode is exposed, without being electrically connected to the non-common wiring electrode.

Abstract: A semiconductor device includes: first and second semiconductor elements each having two electrodes respectively disposed on two surfaces; two first terminals respectively connected to the two electrodes of the first semiconductor element and arranged side by side in one direction; two second terminals respectively connected to the two electrodes of the second semiconductor element, and arranged side by side in the one direction to be adjacent to the two first terminals; and a sealing resin portion covering the first and second semiconductor elements and the first and second terminals in a state where facing surfaces of the first and second terminals are exposed from the sealing resin portion. The facing surfaces of the two first terminals have different area ratios, the facing surfaces of the two second terminals have different area ratios, and one of the first terminals is arranged adjacent to both the two second terminals.

Abstract: An injection control device controls a drive of a solenoid in a high pressure pump for pressurizing fuel to an internal combustion engine. The injection control device includes a transistor on an upstream side of a power supply path from a direct current power supply line to the solenoid and a transistor provided on a downstream side of the power supply path. The injection control device further includes a diode at a position between an upstream terminal of the solenoid and ground, a transistor arranged in parallel with the diode, and a drive controller. The drive controller drives the solenoid to an open position by switching ON the transistors on the upstream and downstream sides of the power supply path.

Abstract: An injection control device controls a solenoid in a fuel injection valve. The injection control device includes a transistor on an upstream side of a first power supply path to the solenoid, and a transistor on an upstream side of a second power supply path to the solenoid. The injection control device has another transistor with a body diode arranged in parallel at a position between an upstream terminal of the solenoid and ground. The injection control device also includes a transistor on the downstream side of the first and second power supply paths. A drive controller in the injection control device drives the solenoid to an open position by switching ON the transistor on the downstream side and one of the transistors on the upstream side power supply paths.

Abstract: An injection control device controls a solenoid in a fuel injection valve. The injection control device includes a transistor on an upstream side of a first power supply path to the solenoid and a transistor on an upstream side of a second power supply path to the solenoid. The injection control device has another transistor with a body diode arranged in parallel at a position on the first power supply path between the first transistor and an upstream terminal of the solenoid. The injection control device also includes a transistor on the downstream side of the first and second power supply paths. A drive controller in the injection control device drives the solenoid to an open position by switching ON the transistor on the downstream side and the transistor on the upstream side of the first power supply path or the transistor on the upstream side of the second power supply path.

Abstract: An injection control device controls a solenoid in a fuel injection valve. The injection control device includes a transistor on an upstream side of a first power supply path to the solenoid and a transistor on an upstream side of a second power supply path to the solenoid. The injection control device has another transistor with a body diode arranged in parallel at a position on the first power supply path between the first transistor and an upstream terminal of the solenoid. The injection control device also includes a transistor on the downstream side of the first and second power supply paths. A drive controller in the injection control device drives the solenoid to an open position by switching ON the transistor on the downstream side and the transistor on the upstream side of the first power supply path or the transistor on the upstream side of the second power supply path.

Abstract: An injection control device controls a drive of a solenoid in a high pressure pump for pressurizing fuel to an internal combustion engine. The injection control device includes a transistor on an upstream side of a power supply path from a direct current power supply line to the solenoid and a transistor provided on a downstream side of the power supply path. The injection control device further includes a diode at a position between an upstream terminal of the solenoid and ground, a transistor arranged in parallel with the diode, and a drive controller. The drive controller drives the solenoid to an open position by switching ON the transistors on the upstream and downstream sides of the power supply path.

Abstract: An injection control device controls a solenoid in a fuel injection valve. The injection control device includes a transistor on an upstream side of a first power supply path to the solenoid, and a transistor on an upstream side of a second power supply path to the solenoid. The injection control device has another transistor with a body diode arranged in parallel at a position between an upstream terminal of the solenoid and ground. The injection control device also includes a transistor on the downstream side of the first and second power supply paths. A drive controller in the injection control device drives the solenoid to an open position by switching ON the transistor on the downstream side and one of the transistors on the upstream side power supply paths.

Abstract: A fuel tank lid includes a lid part and a terminal. The lid part includes an inserted part inserted into an opening of a fuel tank, and a storage part storing a drive circuit. The terminal has a central portion covered by the inserted part and the storage part, a first end connected to a pump, and a second end connected to the drive circuit. The storage part includes a side wall that has a first opening and a second opening, an upper closure part that closes the first opening, and a lower closure part that closes the second opening. The fuel tank lid further includes a discharge structure positioned vertically lower than the upper closure part and discharging a fuel vapor that has travelled along an interface between the terminal and the lid part and entered a hollow space of the storage part, to an external atmosphere.

Abstract: A fuel tank lid includes a lid part closing an opening of a fuel tank, and an internal terminal electrically connecting a pump provided inside the fuel tank with a drive circuit driving the pump. The lid part includes an inserted part inserted into the opening, a storage part located outside the fuel tank and storing the drive circuit in a hollow space of the storage part, and a connection part located outside the fuel tank and connecting the inserted part and the storage part. The fuel tank lid further includes a discharge part discharging a fuel vapor that tries to travel along an interface between the internal terminal and the lid part and enter the hollow space, to an external atmosphere, and a protection part covering the portion exposed from the lid part by the presence of the discharge part to protect the portion from a liquid.

Abstract: A fuel tank lid includes a lid part and a terminal. The lid part includes an inserted part inserted into an opening of a fuel tank, and a storage part storing a drive circuit. The terminal has a central portion covered by the inserted part and the storage part, a first end connected to a pump, and a second end connected to the drive circuit. The storage part includes a side wall that has a first opening and a second opening, an upper closure part that closes the first opening, and a lower closure part that closes the second opening. The fuel tank lid further includes a discharge structure positioned vertically lower than the upper closure part and discharging a fuel vapor that has travelled along an interface between the terminal and the lid part and entered a hollow space of the storage part, to an external atmosphere.

Abstract: A driving device for a piezoelectric actuator supplies charges and discharges the piezoelectric actuator through a charging switch and a discharging switch, respectively. The charging switch is repeatedly turned on and off thereby to charge and expand the piezoelectric actuator. The discharging switch is repeatedly turned on and off thereby to discharge and contract the piezoelectric actuator. The discharging switch is kept ON especially during a period from when the discharging switching control is terminated to when the charging switching control is started next. Thus, the piezoelectric voltage at the start of the next driving can be made substantially 0V.

Abstract: The piezo injector includes a piezo element expanding when electrical charges supplied from an external DC source are accumulated therein, and contracting when the electrical charges are discharged therefrom, an open/close valve opening and closing in accordance with expansion and contraction of the piezo element, a housing containing therein the piezo element and the open/close valve, and an inductor element through which the electrical charges are accumulated in and discharged from the piezo element.

Abstract: A fuel injection control apparatus drives piezoelectric actuators for opening and closing injectors of respective cylinders based on energy stored in a capacitor of a DC/DC converter. A current detecting resistor for controlling a boost switch to charge the capacitor is disposed at a position at which current flowing through the capacitor is not detected. Further, current detecting resistors for controlling the piezoelectric actuators are disposed at positions at which charging current from a diode to the capacitor is not detected. Thus, the charging of the capacitor can be performed even during the control for charging/discharging the piezoelectric actuator.

Abstract: An apparatus is provided for driving an injector injecting fuel into an internal combustion engine. The injector is provided with a piezoelectric element to be charged and discharged. The apparatus comprises a calculator and a charger. The calculator calculates a command value to charge the piezoelectric element. The calculator includes correcting means that corrects the command value based on information indicating either an operation of the piezoelectric element or an electric characteristic of the apparatus. The charger charges the piezoelectric element in response to the corrected command value to accumulate a desired amount of electric energy at the piezoelectric element.

Abstract: A piezo-injector driving apparatus overcomes disadvantages occurring at the start and the end of charging or discharging of a piezoelectric element while maintaining high responsiveness. At the start and the end of charging a piezoelectric element, the absolute value of a change rate of electrical energy of the piezoelectric element is set lower than in a period between them. Therefore, the pattern of electrical energy of the piezoelectric element is in the shape of the letter S. This prevents an excess of energy supplied to the piezoelectric element at the start of charging and energy supplied to the piezoelectric element at the end of charging.

Abstract: An injector drive device includes a power supply unit that is supplied with power from a battery mounted in a vehicle and generates a voltage higher than the voltage of the battery, and EDU having a drive unit that is supplied with power from the power supply unit and drives an injector. The drive unit is housed in a housing. The power supply unit is placed externally to the EDU, that is, externally to the housing, so that the housing need not be made large against heat generation of the power supply unit.