Abstract: A motor-driven compressor for a vehicle includes a control device and a detection circuit. The detection circuit includes an AD conversion circuit. The AD conversion circuit converts an on-voltage from an analog signal to a digital signal. The control device is configured to determine that a battery is in an overvoltage state and stop the motor-driven compressor for the vehicle when a value of the on-voltage detected from the digital signal is larger than an overvoltage determination threshold value.

Abstract: An electric compressor includes an electric motor, and a motor controller configured to drive the electric motor. The motor controller includes a high voltage circuit board on which switching elements are mounted, a low voltage circuit board on which a control circuit controlling switching operation of the switching elements is mounted, an input connector, an output connector, and a current sensor. The high voltage circuit board and the low voltage circuit board are stacked with each other. The output connector is integrated with a detection busbar that provides electrical connection between the high voltage circuit board and the low voltage circuit board, and through which detection signals indicative of the output current are output to the control circuit.

Abstract: An electric compressor includes an inverter portion that includes a circuit board, a busbar fixed to the inverter housing and connecting an external power supply to the circuit board, a noise reduction circuit mounted on the circuit board, a first fastener fastening the circuit board to the inverter housing, and a second fastener fastening the busbar to the circuit board. The circuit board includes a first fastening hole through which the first fastener is inserted, a second fastening hole that is disposed adjacent to the first fastening hole and through which the second fastener is inserted, and a slit extending between the first fastening hole and the second fastening hole from a peripheral edge of the circuit board. The first fastener electrically connects the circuit board as a ground of the noise reduction circuit to the inverter housing.

Abstract: An electric compressor includes an electric motor, and a motor controller configured to drive the electric motor. The motor controller includes a high voltage circuit board on which switching elements are mounted, a low voltage circuit board on which a control circuit controlling switching operation of the switching elements is mounted, an input connector, an output connector, and a current sensor. The high voltage circuit board and the low voltage circuit board are stacked with each other. The output connector is integrated with a detection busbar that provides electrical connection between the high voltage circuit board and the low voltage circuit board, and through which detection signals indicative of the output current are output to the control circuit.

Abstract: The present inventors succeeded in developing a vector that expresses high levels of a foreign gene in plant seeds by utilizing a 5?-untranslated region of a gene encoding a seed storage protein. The inventors also succeeded in accumulating high levels of a foreign gene product in plant seeds by utilizing a seed storage protein defective mutant as a target for foreign gene transfer.

Abstract: The present inventors succeeded in developing a vector that expresses high levels of a foreign gene in plant seeds by utilizing a 5′-untranslated region of a gene encoding a seed storage protein. The inventors also succeeded in accumulating high levels of a foreign gene product in plant seeds by utilizing a seed storage protein defective mutant as a target for foreign gene transfer.