摘要:
The silicon carbide semiconductor device includes a substrate, a drift layer, a base region, a source region, a trench, a gate insulating layer, a gate electrode, a source electrode, a drain electrode, and a deep layer. The deep layer is disposed under the base region and is located to a depth deeper than the trench. The deep layer is divided into a plurality of portions in a direction that crosses a longitudinal direction of the trench. The portions include a group of portions disposed at positions corresponding to the trench and arranged at equal intervals in the longitudinal direction of the trench. The group of portions surrounds corners of a bottom of the trench.
摘要:
A semiconductor device includes a semiconductor substrate and an electric field terminal part. The semiconductor substrate includes a substrate, a drift layer disposed on a surface of the substrate, and a base layer disposed on a surface of the drift layer. The semiconductor substrate is divided into a cell region in which a semiconductor element is disposed and a peripheral region that surrounds the cell region. The base region has a bottom face located on a same plane throughout the cell region and the peripheral region and provides an electric field relaxing layer located in the peripheral region. The electric field terminal part surrounds the cell region and a portion of the electric field relaxing layer and penetrates the electric field relaxing layer from a surface of the electric field relaxing layer to the drift layer.
摘要:
A SiC semiconductor device having a Schottky barrier diode includes: a substrate made of SiC and having a first conductive type, wherein the substrate includes a main surface and a rear surface; a drift layer made of SiC and having the first conductive type, wherein the drift layer is disposed on the main surface of the substrate and has an impurity concentration lower than the substrate; a Schottky electrode disposed on the drift layer and has a Schottky contact with a surface of the drift layer; and an ohmic electrode disposed on the rear surface of the substrate. The Schottky electrode directly contacts the drift layer in such a manner that a lattice of the Schottky electrode is matched with a lattice of the drift layer.
摘要:
A fuel cell two-wheel vehicle is provided with: a fuel cell, fuel tanks, a supercharger, a pipe line, an in-wheel motor, and a motor driver. The fuel cell generates electric power using hydrogen and air as reaction sources. The fuel tanks supply hydrogen to the fuel cell through a hydrogen supply path. The supercharger supplies air from the outside air to the fuel cell. Through the pipe line, an exhaust from the fuel cell is discharged to the outside. The in-wheel motor serves as a driving source of the fuel cell two-wheel vehicle, and the motor driver drives the in-wheel motor. In an air system, a route and an outlet of the pipe line are arranged to be directed toward the motor driver. Thus, a heat sink is exposed to the discharged air having passed through the fuel cell, and thereby the motor driver is cooled.
摘要:
A lighting apparatus has a housing and is disposed at a lower end of a front fork of a motorcycle. The housing includes a front opening disposed on a side of a radiation direction of a lighting body and a side opening disposed on a center side in a width direction of a motorcycle. The side opening in the housing, covered by a lid, is wide enough for the lighting body to pass through. The housing includes a wire guide for withdrawing an electric wire and a drain hole formed in a bottom portion of the housing. The lighting body is fixed on a board. The housing includes rails disposed on an upper wall portion and a lower wall portion thereof, into which an upper end and a lower end of the board are to be fitted so as to position the lighting body in a longitudinal direction.
摘要:
An electronic apparatus includes: a first molded body; a second molded body which composes a housing with the first molded body; a first conductive pattern provided on an outer surface of the first molded body; a second conductive pattern provided in the housing; and a first conductive pin. The first conductive pin passes through the first molded body and connects the first conductive pattern and the second conductive pattern.
摘要:
A SiC semiconductor device having a Schottky barrier diode includes: a substrate made of SiC and having a first conductive type, wherein the substrate includes a main surface and a rear surface; a drift layer made of SiC and having the first conductive type, wherein the drift layer is disposed on the main surface of the substrate and has an impurity concentration lower than the substrate; a Schottky electrode disposed on the drift layer and has a Schottky contact with a surface of the drift layer; and an ohmic electrode disposed on the rear surface of the substrate. The Schottky electrode directly contacts the drift layer in such a manner that a lattice of the Schottky electrode is matched with a lattice of the drift layer.
摘要:
A saddle seat type fuel-cell electric vehicle includes a body frame having a pair of right and left main frames connected at their front ends to a head pipe and extending downward therefrom and a pair of right and left under frames connected at their front ends to the head pipe and extending downward therefrom along the right and left main frames on the lower side thereof. A pair of hydrogen cylinders extend substantially vertically along the body frame between the front side of the head pipe and the front side of the front end portion of the footrest so as to interpose the body frame in the lateral direction of the vehicle. A fuel supply unit is provided in a space surrounded by the main frames and the under frames with the hydrogen cylinders being surrounded by a guard pipe connected to the main frames.
摘要:
A robot has a plurality of limbs with joints; a driving section for driving the joints periodically to form periodic movements on a floor by means of the plural limbs; and a controller capable of performing various operations. The operations include detecting over time floor reaction forces received through the plural limbs contacting the floor during the periodic movement; deriving a center position of the floor reaction forces received from ground contacting limbs during movement and a change in the center position over time; calculating desired angles of the plural joints directly based on the derived current center position, without deriving a desired center position indicating the center position at a future time, controlling the plural joints based on the calculated desired angles; and driving the robot with the controlled plural joints.
摘要:
An intake structure in a fuel cell powered vehicle including a fuel cell using air and hydrogen as fuels, a supercharger for compressing the outside air and outputting the compressed air, a humidifier for humidifying the air compressed by the supercharger, a bypass passage for connecting the supercharger and the fuel cell to each other, and a bypass valve for opening and closing the bypass passage. The bypass valve is disposed on the outside relative to a straight line T1 connecting between the supercharger and the humidifier, and is disposed in the vicinity of the supercharger and the humidifier. With this configuration supercooling of a humidifier can be prevented, while eliminating the need for a warming member for the humidifier. Further, the intake system members can be efficiently arranged in the vehicle, while suppressing the pressure loss in the intake system.