Abstract: In a vehicle power supply device, a switch unit switches mutual connection among first to fourth batteries. When supplying electric power from the first to fourth batteries to a motor, a switch controller controls the switch unit and forms a backup battery corresponding to at least one of the first to fourth batteries that does not supply electric power to the motor and a serial battery group for supplying electric power that has the remaining batteries, except for the backup battery, connected in series. The switch controller supplies electric power from the serial battery group for supplying electric power to the motor, and, when a predetermined condition is satisfied, sequentially switches between a battery included in the serial battery group for supplying electric power and the backup battery.

Abstract: The protection circuit unit includes an energization module disposed on an electric path between a high-voltage battery of a vehicle and a high-voltage load receiving supply of power from the high-voltage battery, to open and close the electric path, and a control board configured to be a member separated from the energization module and electrically connected with the energization module, to control opening and closing of the electric path. The energization module includes semiconductor switches opening and closing the electric path, and a control terminal connecting the semiconductor switches with the control board. The control board includes a connection unit corresponding to the control terminal of each of a plurality of types of the energization modules.

Abstract: In a power-supply device, a FET passes or blocks a current flowing from one side in a power-supply circuit. A current sensor detects a current flowing into the FET. A FET is coupled to the FET, and passes or blocks a current flowing from another side in the power-supply circuit. A current sensor detects a current flowing into the FET. A junction couples a load unit at a point between the FET and the FET. In each of switch units, a CPU controls the corresponding switch unit of the power-supply circuit based on the detection result detected by the corresponding current sensors.

Abstract: In a power supply system, a charge switching unit is relays switchable between a series circuit that connects a first high-voltage battery to a second high-voltage battery in series and a parallel circuit that connects the first high-voltage battery to the second high-voltage battery in parallel. If an input voltage is a first voltage (for example, approximately 400 V), a controller controls the charge switching unit to form the parallel circuit, and charges the first and second high-voltage batteries with power supplied from a quick charger. If the input voltage is a second voltage (for example, approximately 800 V) higher than the first voltage (for example, approximately 400 V), the controller controls the charge switching unit to form the series circuit, and charges the first and second high-voltage batteries with power supplied from a super-quick charger.

Abstract: A wire harness unit applied to a power storage device unit and a wire harness includes a routing material and a cooling unit that cools the routing material. The routing material constitutes a charging conduction path that extends between a charging inlet and a power storage device, and transmits electricity. The charging inlet is provided to a vehicle. The power storage device is provided to the vehicle and can store electric power. As a result, the wire harness unit, the power storage device unit, and the wire harness can reduce a cross-sectional area of the routing material to a relatively small area, thereby having an advantageous effect of capable of having proper mountability.

Abstract: Disclosed is a crimp machine capable of eliminating product management for a relay connector per an ID. In the crimp machine, by a power source line, a ground line, and a signal line being positioned between a terminal mount table to which a crimp connector disposed in the relay connector is mounted and a crimp blade, and by the crimp blade being move close to a terminal mount table, the power source line, the ground line, and the signal line are thus crimped, wherein a connection terminal is disposed on the terminal mount table and an ID is made to output from the connection terminal.

Abstract: Disclosed is a crimp machine capable of eliminating product management for a relay connector per an ID. In the crimp machine, by a power source line, a ground line, and a signal line being positioned between a terminal mount table to which a crimp connector disposed in the relay connector is mounted and a crimp blade, and by the crimp blade being move close to a terminal mount table, the power source line, the ground line, and the signal line are thus crimped, wherein a connection terminal is disposed on the terminal mount table and an ID is made to output from the connection terminal.

Abstract: A load control unit for controlling the supply of an electric power to a load from battery in accordance with a pulse-width modulation control includes: a reference voltage generating unit; a first charging/discharging unit; a second charging/discharging unit connected in series to the first charging/discharging unit to charge and discharge in reverse to those of the first charging/discharging unit; a first comparing unit that compares the voltage of the first charging/discharging unit with the reference voltage and switches between the charge and discharge of the first charging/discharging unit to generate a triangle wave; and a second comparing unit that compares a divided voltage by dividing the voltage of the battery with the voltage of the triangle wave generated by the first comparing unit to generate a PWM pulse. The ratio of capacities between the first and second charging/discharging units approximates to the ratio of resistances for obtaining the divided voltage.

Abstract: A load control unit for controlling the supply of an electric power to a load from battery in accordance with a pulse-width modulation control includes: a reference voltage generating unit; a first charging/discharging unit; a second charging/discharging unit connected in series to the first charging/discharging unit to charge and discharge in reverse to those of the first charging/discharging unit; a first comparing unit that compares the voltage of the first charging/discharging unit with the reference voltage and switches between the charge and discharge of the first charging/discharging unit to generate a triangle wave; and a second comparing unit that compares a divided voltage by dividing the voltage of the battery with the voltage of the triangle wave generated by the first comparing unit to generate a PWM pulse. The ratio of capacities between the first and second charging/discharging units approximates to the ratio of resistances for obtaining the divided voltage.

Abstract: When excited states of excitation coils are controlled at a both excitation step of magnetizing both of two excitation coils, an initializing driving means 41a inputs excitation pulses in which a duty ratio thereof at an interval of time controlled by the both excitation step is less than 1 to the excitation coils. Contact detecting means 42 detects contact based on voltages generated at the excitation coils when the excitation pulses are not inputted.

Abstract: When excited states of excitation coils are controlled at a both excitation step of magnetizing both of two excitation coils, an initializing driving means 41a inputs excitation pulses in which a duty ratio thereof at an interval of time controlled by the both excitation step is less than 1 to the excitation coils. Contact detecting means 42 detects contact based on voltages generated at the excitation coils when the excitation pulses are not inputted.