Abstract: An abnormality detection circuit includes: a first current source configured to generate a first current flowing from an external terminal toward a reference potential terminal; a second current source configured to generate a second current flowing from a power supply potential terminal toward the external terminal; a comparator configured to generate an abnormality detection signal by comparing a detection voltage corresponding to an application voltage of the external terminal with a predetermined threshold voltage; and a controller configured to switch between a first abnormality detection mode in which an operation of generating the first current is performed and a second abnormality detection mode in which an operation of generating the second current is performed.

Abstract: A semiconductor device includes an insulated gate type first transistor that is formed at a semiconductor chip, an insulated gate type second transistor that is formed at the semiconductor chip, and a control wiring that transmits a control signal controlling the first transistor and the second transistor to reach an ON state during a normal operation and controlling the first transistor to reach an OFF state and the second transistor to reach an ON state during an active clamp operation.

Abstract: Methods, systems, devices and apparatuses for a sound enhancement system. The sound enhancement system includes a trailer brake control unit placed on the vehicle and an electronic control unit coupled to the trailer brake control unit. The electronic control unit is configured to determine the vehicle is operating in a tow mode based on the trailer brake status, determine a magnitude of an audio signal that mimics or enhances engine sound based on the tow mode, and generate the audio signal. The sound enhancement system further includes an audio device configured to output the audio signal based at the determined magnitude.

Abstract: An electric tool system includes a motor, a control unit, and an output shaft. The motor includes a stator and a rotor. The control unit performs vector control on the motor. The control unit includes a first acquisition unit, a second acquisition unit, and a command value generation unit. The command value generation unit calculates, based on a torque current acquisition value (current measured value) as a value related to a torque current as acquired by the first acquisition unit and an acceleration acquisition value as a value related to acceleration of the rotor as acquired by the second acquisition unit, at least one of a command value of the torque current to be supplied to the motor or a command value of an excitation current to be supplied to the motor.

Abstract: Described are a plant disease control composition with enhanced efficacy and improved rainfastness of D-tagatose, and a plant disease control method using the composition. The plant disease control composition includes D-tagatose as an active ingredient, an oil component and a surfactant, and is effective against plant diseases, especially diseases caused by fungi and bacteria.

Abstract: Methods, systems, devices and apparatuses for a sound enhancement system. The sound enhancement system includes a trailer brake control unit placed on the vehicle and an electronic control unit coupled to the trailer brake control unit. The electronic control unit is configured to determine the vehicle is operating in a tow mode based on the trailer brake status, determine a magnitude of an audio signal that mimics or enhances engine sound based on the tow mode, and generate the audio signal. The sound enhancement system further includes an audio device configured to output the audio signal based at the determined magnitude.

Abstract: An abnormality detection circuit includes: a first current source configured to generate a first current flowing from an external terminal toward a reference potential terminal; a second current source configured to generate a second current flowing from a power supply potential terminal toward the external terminal; a comparator configured to generate an abnormality detection signal by comparing a detection voltage corresponding to an application voltage of the external terminal with a predetermined threshold voltage; and a controller configured to switch between a first abnormality detection mode in which an operation of generating the first current is performed and a second abnormality detection mode in which an operation of generating the second current is performed.

Abstract: An electric tool system includes a motor, a control unit, and an output shaft. The motor includes a stator and a rotor. The control unit performs vector control on the motor. The control unit includes a first acquisition unit, a second acquisition unit, and a command value generation unit. The command value generation unit calculates, based on a torque current acquisition value (current measured value) as a value related to a torque current as acquired by the first acquisition unit and an acceleration acquisition value as a value related to acceleration of the rotor as acquired by the second acquisition unit, at least one of a command value of the torque current to be supplied to the motor or a command value of an excitation current to be supplied to the motor.

Abstract: Methods, systems, devices and apparatuses for a sound enhancement system. The sound enhancement system includes an airflow sensor. The airflow sensor is configured to measure an airflow into an engine of the vehicle. The sound enhancement system includes an electronic control unit. The electronic control unit is coupled to the airflow sensor. The electronic control unit is configured to determine a time of when to output an audio signal that mimics or enhances engine sound based on the airflow into the engine of the vehicle. The electronic control unit is configured to generate the audio signal based on the airflow into the engine of the vehicle. The sound enhancement system includes an audio device. The audio device is configured to output the audio signal based on the timing of when to output the audio signal.

Abstract: Methods, systems, devices and apparatuses for a sound enhancement system. The sound enhancement system includes an airflow sensor. The airflow sensor is configured to measure an airflow into an engine of the vehicle. The sound enhancement system includes an electronic control unit. The electronic control unit is coupled to the airflow sensor. The electronic control unit is configured to determine a time of when to output an audio signal that mimics or enhances engine sound based on the airflow into the engine of the vehicle. The electronic control unit is configured to generate the audio signal based on the airflow into the engine of the vehicle. The sound enhancement system includes an audio device. The audio device is configured to output the audio signal based on the timing of when to output the audio signal.

Abstract: An audio amplifier of a BTL (Bridged Tied Load) type, includes a first amplifier, a second amplifier, a first output pin connected to an output of the first amplifier, a second output pin connected to an output of the second amplifier, a first monitor pin, a second monitor pin, a current source connected to the first monitor pin and configured to be switched on and off, a switch interposed between the second monitor pin and a fixed voltage line, and a load state determination circuit configured to detect a state of a load based on a potential difference between the first monitor pin and the second monitor pin.

Abstract: An audio amplifier of a BTL (Bridged Tied Load) type, includes a first amplifier, a second amplifier, a first output pin connected to an output of the first amplifier, a second output pin connected to an output of the second amplifier, a first monitor pin, a second monitor pin, a current source connected to the first monitor pin and configured to be switched on and off, a switch interposed between the second monitor pin and a fixed voltage line, and a load state determination circuit configured to detect a state of a load based on a potential difference between the first monitor pin and the second monitor pin.