Abstract: A fluid heating device according to an embodiment includes: a housing having a space inside through which a fluid flows; and at least one heater provided inside the housing and presenting a plate shape. The heater extends from a first inner wall side of the housing toward a second inner wall side facing the first inner wall, and a space is provided between the heater and the second inner wall.

Abstract: A gate drive circuit is connected to a semiconductor element having a gate terminal via a gate resistor and changes a gate voltage applied to the gate terminal to drive the semiconductor element, and when a condition that a current flowing through the semiconductor element is equal to or greater than a predetermined first threshold value and equal to or less than a predetermined second threshold value greater than the first threshold value and a temperature of the semiconductor element is equal to or greater than a predetermined third threshold value and equal to or less than a predetermined fourth threshold value greater than the third threshold value is satisfied, a resistance value of the gate resistor when the semiconductor element is turned on is switched to a value greater than that when the condition is not satisfied.

Abstract: To provide a highly reliable electronic control device in which an excitation amplifier that outputs an excitation signal to a resolver, a microcomputer, and a power supply IC are mounted, the electronic control device being capable of performing abnormality diagnosis of the excitation amplifier before activation and during operation of a system. An electronic control device includes a power supply IC; a microcomputer to which a power supply voltage is supplied from the power supply IC; an excitation amplifier that excites the resolver; and a diagnostic circuit that monitors an input signal and an output signal of the excitation amplifier and diagnoses abnormality; where the diagnostic circuit compares the input signal with the output signal to perform abnormality diagnosis of the excitation amplifier, and transmits a diagnosis result to the microcomputer.

Abstract: A drive device for a voltage-driven semiconductor switching element includes: a gate drive circuit configured to drive the semiconductor switching element; and a gate voltage hold circuit configured to hold a gate voltage applied to the semiconductor switching element at a predetermined hold voltage higher than a threshold voltage of the semiconductor switching element and lower than a Miller voltage of the semiconductor switching element. The gate voltage hold circuit starts an operation of holding the gate voltage at the hold voltage after a rise of a voltage between main terminals of the semiconductor switching element at a turn-off time of the semiconductor switching element and before a maximum value of the voltage between the main terminals.

Abstract: A heater according to the embodiment is a heater that contacts with a relatively flowing fluid and heats the contacted fluid. The heater includes: a base portion presenting a plate-like shape, having a first surface which is a convex curved surface and a second surface which faces the first surface and is a concave curved surface, and the base portion being three-dimensionally bent; and at least one heating portion provided on at least one of the first surface side of the base portion and the second surface side of the base portion.

Abstract: In an electronic control unit on which a power semiconductor element is mounted, provided is a highly reliable and low-loss electronic control unit capable of performing a high-speed switching operation while suppressing a surge voltage during a switching operation of the power semiconductor element. The electronic control unit includes: a microcontroller; a power semiconductor element; and a gate drive circuit that generates a gate drive current of the power semiconductor element on a basis of a command from the microcontroller. The gate drive circuit detects a change in an output voltage of the power semiconductor element to detect start of on/off operation of switching, increases a gate drive current in a process of the switching in an on state and before reaching a peak voltage, and decreases the gate drive current in a process of the switching in an off state and before reaching the peak voltage.

Abstract: A simulation apparatus includes a loop instruction sequence detector and an instruction computing section. The loop instruction sequence detector detects a loop instruction sequence included in a target program and generates a loop instruction sequence detection signal. When the loop instruction sequence detection signal is generated, the instruction computing section executes the loop instruction sequence once and generates a simulation elapsed time required for executing the loop instruction sequence a predetermined number of times.

Abstract: A robot that moves on a leg, the robot comprising: a calculation unit that calculates a floor reaction force moment around a vertical axis from a center of gravity and a ZMP trajectory of the robot and a moment orbit around the center of gravity, and obtains a correction amount of a moment vector around the center of gravity when the floor reaction force moment around the vertical axis exceeds a frictional limit; and a control unit that controls the robot based on the correction amount.

Abstract: Provided is a drive circuit capable of reducing the amount of surge during an off operation when an overcurrent is detected while reducing the switching loss during a normal operation. The present invention is characterized by including a switching element, an ON circuit that injects charge into a gate of the switching element according to a drive signal, a first OFF circuit that extracts charge from the gate of the switching element in response to a drive signal, and a second OFF circuit that is different from the first OFF circuit and extracts charge from the gate of the switching element in response to an overcurrent detection signal.

Abstract: A battery charging control device for a vehicle is provided, which includes a motor, a high-voltage battery, a low-voltage battery, a charging connecting device, an auxiliary charging device, a temporary storage device, a storage device, a write processing device which performs write processing for writing and storing in the storage device information stored in the temporary storage device, and a control device which includes a determination module and a charging control module.

Abstract: A heater according to embodiments includes: a base portion which contains metal, extends in a first direction, and has a first surface and a second surface facing the first surface; an insulating layer which is provided on the first surface side of the base portion; a heating element which is provided on the insulating layer and extends in the first direction; and a protection portion which covers the heating element. A peripheral edge of the base portion in a second direction intersecting the first direction extends in a third direction intersecting the first direction and the second direction.

Abstract: An electronic control device for power conversion having an integrated safety function and improved reliability includes: a power module for converting DC power into AC power and supply the AC power to a motor; a gate driver for controlling the power module; a microcontroller for controlling the gate driver; a power supply IC for supplying power to at least one of the gate driver and the microcontroller; a discharge circuit for discharging a high voltage supplied to the power module; and a sensor. The power supply IC includes a microcomputer abnormality detection circuit for detecting an abnormality of the microcontroller and a safety processing circuit for determining necessity of safety processing based on an output of at least one of the microcomputer abnormality detection circuit and the sensor and performs the safety processing. The safety processing circuit stops the motor or discharges a high voltage using the discharge circuit.

Abstract: A vehicle heater according to an embodiment is a vehicle heater that heats a gas inside a vehicle. The vehicle heater includes: a substrate that has a plate shape, has a first surface and a second surface facing the first surface, and extends in one direction; a heat generating element that is provided on the first surface side and extends in an extension direction of the substrate; a first detection portion that is provided on the first surface side and detects a temperature of the substrate; and a first protection portion that covers the first surface side.

Abstract: Even when a power supply relay cannot be turned off and when power supply to a microcomputer is normally cut off, fixing of the power supply relay is detected. An electronic control device 100 according to an aspect of the present invention includes a relay drive circuit 13 that controls on and off of a power supply relay 12 according to information about the on and off of power supply, an electronic circuit (first power supply system block 110, microcomputer 102) that operates at a first power supply voltage (V1) supplied from a battery 10 through the power supply relay 12, and a monitoring unit (second power supply system block 120) that monitors the first power supply voltage when the power supply is turned off, and holds a monitoring result, the first power supply voltage reflecting presence or absence of fixing of the power supply relay.

Abstract: Provided is an inverter device that detects abnormalities of a power device of the inverter device, and of a gate drive to be able to safely control the inverter device. The inverter device includes a gate voltage detection unit 19 that detects a gate voltage of the power device, and a drain voltage detection unit 30 that detects a drain voltage. A microcontroller 10 compares a gate drive signal 40 with a gate voltage detection signal 41 to make a diagnosis and compares the gate drive signal 40 with a drain voltage detection signal 42 to make a diagnosis, thereby making a diagnosis and detection of the gate voltage on normal. In addition, by generating a gate drive signal to the power device, from a gate voltage detection signal from a counter power device, a dead time is reduced.

Abstract: A heater and an image forming device are provided that can reduce manufacturing costs and suppress temperature variation within the surface of the heater. The heater according to an embodiment includes: a substrate having a plate shape and extending in a first direction; a first heating element provided on one surface side of the substrate and extending in the first direction; a first wiring provided on the one surface side of the substrate and overlapping an end portion of the first heating element in the first direction; a second heating element spaced apart from the first heating element in a second direction perpendicular to the first direction on the one surface side of the substrate, and extending in the first direction; and a second wiring provided on the one surface side of the substrate and overlapping an end portion of the second heating element in the first direction.

Abstract: In a drive circuit of a voltage-driven power semiconductor switching element, a drive circuit capable of performing efficient switching control according to a drive condition with a relatively simple configuration is provided. The drive circuit includes the voltage-driven switching element, an on-circuit that injects a charge into a gate of the voltage-driven switching element in response to a drive signal, and an off-circuit that extracts the charge from the gate of the voltage-driven switching element in response to a drive signal. In the drive circuit, the injection of the charge into the gate of the voltage-driven switching element or the extraction of the charge from the gate by pulse driving of the on-circuit or the off-circuit, and switching time of the voltage-driven switching element is controlled.

Abstract: Provided is a heater including: a substrate that has electrical conductivity; a first insulation portion that is provided on a first surface of the substrate, has an insulation property; at least one heat generation body that is provided on the first insulation portion; a second insulation portion that is provided on a second surface of the substrate which is opposite to the first surface, has an insulation property; at least one detection unit that is provided on at least one of the first insulation portion and the second insulation portion; and a first wiring which is provided on at least one of the first insulation portion and the second insulation portion, and in which one end is electrically connected to one terminal of the detection unit and the other end is electrically connected to the substrate having the electrical conductivity.

Abstract: There is provided an electronic control device in which a microcomputer and a power source IC are mounted, the electronic control device having high reliability and being capable of performing fixation diagnosis of a safety control signal of the power source IC before activation of the microcomputer. The electronic control device includes a microcomputer, and a power source IC that communicates with the microcomputer. The power source IC includes a monitoring circuit that monitors the microcomputer, a safety processing circuit that outputs a safety control signal when the monitoring circuit determines an occurrence of an abnormality in the microcomputer, and a diagnosis circuit that diagnoses whether or not the safety control signal has a fixation failure. The diagnosis circuit detects whether or not the fixation failure has occurred, based on states of the safety control signal before and after the safety control signal is activated after activation of a power source.

Abstract: To provide a highly reliable electronic control device in which an excitation amplifier that outputs an excitation signal to a resolver, a microcomputer, and a power supply IC are mounted, the electronic control device being capable of performing abnormality diagnosis of the excitation amplifier before activation and during operation of a system. An electronic control device includes a power supply IC; a microcomputer to which a power supply voltage is supplied from the power supply IC; an excitation amplifier that excites the resolver; and a diagnostic circuit that monitors an input signal and an output signal of the excitation amplifier and diagnoses abnormality; where the diagnostic circuit compares the input signal with the output signal to perform abnormality diagnosis of the excitation amplifier, and transmits a diagnosis result to the microcomputer.