Abstract: A semiconductor integrated circuit for power supply forming a power supply device generates an output voltage from an input voltage. The semiconductor integrated circuit includes a plurality of external terminals including a target external terminal; a target transistor disposed between the target external terminal and a reference conductive part having a predetermined reference potential; an output voltage monitoring circuit arranged to turn on or off the target transistor in accordance with the output voltage; and a constant current circuit arranged to supply a constant current to a point of the reference potential via the target external terminal.

Abstract: A power supply control device includes: a high-side gate driver that turns on and off an N-channel high-side transistor connected between an application terminal for an input voltage and an application terminal for a switching voltage; a bootstrap circuit that generates a bootstrap voltage, higher than the switching voltage by the charge voltage for a boot capacitor, to feed it to the high-side gate driver; and a controller that switches the switching power supply between a heavy-load mode and a light-load mode. The bootstrap circuit can switch the capacitance value of the bootstrap capacitor according to whether the high-side transistor is on or off. The controller controls the bootstrap circuit such that it, in the light-load mode, performs capacitance value switching control for the boot capacitor but, in the heavy-load mode, suspends capacitance value switching control for the boot capacitor.

Abstract: A clock signal generation circuit includes: a triangular wave generation circuit configured to generate a triangular wave signal; a pseudo-random number generation circuit configured to generate a pseudo-random number signal; a limiter circuit configured to perform a limitation process of limiting an amount of change per unit time in the pseudo-random number signal and generate the pseudo-random number signal subjected to the limitation process as a limiter signal; a linear arithmetic circuit configured to generate a frequency control signal by performing a linear arithmetic operation on the triangular wave signal and the limiter signal; and an oscillator configured to generate a clock signal having a frequency corresponding to the frequency control signal.

Abstract: In a switching power supply device, a comparison voltage is generated based on a feedback voltage commensurate with the output voltage. Synchronously with the output transistor being turned on, a ramp voltage is made to start increasing from a first initial voltage; when the ramp voltage exceeds the comparison voltage, the output transistor is turned off. When the switching frequency is lowered from a first frequency to a second frequency, it is switched to the second frequency after the lapse of a transition period. During the transition period, the ramp voltage is made to start increasing from a second initial voltage (>first initial voltage).

Abstract: A semiconductor device includes a conductive member, a solder layer, a chip, a coating film, an insulating part, and a sealing resin. The solder layer is located on the conductive member. The chip is located on the solder layer. The coating film is insulative. The coating film is located on the chip. The coating film includes a first covering part. The first covering part covers an outer perimeter edge of an upper surface of the chip. The insulating part is located on the coating film. The sealing resin seals the solder layer, the chip, the coating film, and the insulating part.

Abstract: A signal generation circuit includes: a reference voltage generation circuit configured to generate a reference voltage; a ramp voltage generation circuit configured to generate a ramp voltage that varies within a predetermined voltage range; and a comparison circuit configured to output a comparison result signal that indicates the magnitude relationship between the reference voltage and the ramp voltage. The reference voltage generation circuit gives the reference voltage a waveform of a triangular wave and varies the frequency of the triangular wave.

Abstract: An amplifier circuit configured to generate an error voltage corresponding the difference between a target voltage and a reference voltage includes: a first differential input pair having a first transistor configured to receive the target voltage at its gate and a second transistor configured to receive the reference voltage at its gate; and a second differential input pair having a third transistor configured to receive the target voltage at its gate and a fourth transistor configured to receive the reference voltage at its gate. The amplifier circuit generates the error voltage based on the reference voltage by using the first or second differential input pair. The first and second transistors are formed as P-channel MOSFETs and the third and fourth transistors are formed as N-channel MOSFETs.

Abstract: A stacked lens includes: a first optical device; a second optical device disposed on an optical axis of the first optical device; and an adhesive layer bonding the first optical device and the second optical device and including a projection projecting outside a side surface of the first optical device and a side surface of the second optical device.

Abstract: A clock signal generation circuit includes: a triangular wave generation circuit configured to generate a triangular wave signal; a pseudo-random number generation circuit configured to generate a pseudo-random number signal; a limiter circuit configured to perform a limitation process of limiting an amount of change per unit time in the pseudo-random number signal and generate the pseudo-random number signal subjected to the limitation process as a limiter signal; a linear arithmetic circuit configured to generate a frequency control signal by performing a linear arithmetic operation on the triangular wave signal and the limiter signal; and an oscillator configured to generate a clock signal having a frequency corresponding to the frequency control signal.

Abstract: A vehicle comprising a steering wheel; a steering switch disposed on the steering wheel; an other-vehicle-detector for detecting another vehicle; a tactile sensation presentation unit for presenting a tactile sensation to an operator by vibrating the steering switch; and a controller configured to, according to detection by the other-vehicle-detector, cause the tactile sensation presentation unit to vibrate the steering switch to present a tactile sensation to the operator.

Abstract: A semiconductor integrated circuit for power supply forming a power supply device generates an output voltage from an input voltage. The semiconductor integrated circuit includes a plurality of external terminals including a target external terminal; a target transistor disposed between the target external terminal and a reference conductive part having a predetermined reference potential; an output voltage monitoring circuit arranged to turn on or off the target transistor in accordance with the output voltage; and a constant current circuit arranged to supply a constant current to a point of the reference potential via the target external terminal.

Abstract: In a switching power supply device, a comparison voltage is generated based on a feedback voltage commensurate with the output voltage. Synchronously with the output transistor being turned on, a ramp voltage is made to start increasing from a first initial voltage; when the ramp voltage exceeds the comparison voltage, the output transistor is turned off. When the switching frequency is lowered from a first frequency to a second frequency, it is switched to the second frequency after the lapse of a transition period. During the transition period, the ramp voltage is made to start increasing from a second initial voltage (>first initial voltage).

Abstract: The present disclosure provides a power supply apparatus, which provides an output voltage outputted by a DC/DC power circuit to a power supply system of a load and includes: an external terminal which a load-side ground potential is applied to; an adding portion configured for adding the load-side ground potential applied to the external terminal to a set reference voltage; a low-pass filter (LPF) including at least one resistor and at least one capacitor, wherein the LPF inputs an LPF input voltage based on an adding result of the adding portion; and an error amplifier, wherein the error amplifier is inputted an LPF output voltage from the LPF as a reference voltage and inputted a feedback voltage based on the LPF output voltage. The error amplifier is included in the DC/DC power circuit. The output voltage is controlled according to an output of the error amplifier.

Abstract: A vehicle and a steering unit can improve safety. A vehicle includes a steering wheel and a touchpad disposed on the steering wheel. The vehicle enables control of a controlled apparatus by a gesture on the touchpad of the steering wheel upon detecting a predetermined pressure on the touchpad of the steering wheel and provides a tactile sensation from the touchpad in accordance with the gesture on the touchpad of the steering wheel.

Abstract: A control method that is achieved by a refrigerator application installed in portable terminal (110), the control method including the steps of instructing an operating system (OS) of portable terminal (110) to connect to a refrigerator in operation in a software access point mode, and sending a service set identifier (SSID) of an access point and a password for connecting to the access point to the refrigerator. An SSID of the refrigerator that operates in the software access point mode, and a password for connecting to the refrigerator that operates in the software access point mode are incorporated in the refrigerator application in advance.

Abstract: A control method that is achieved by a refrigerator application installed in portable terminal, the control method including the steps of instructing an operating system (OS) of portable terminal to connect to a refrigerator in operation in a software access point mode, and sending a service set identifier (SSID) of an access point and a password for connecting to the access point to the refrigerator. An SSID of the refrigerator that operates in the software access point mode, and a password for connecting to the refrigerator that operates in the software access point mode are incorporated in the refrigerator application in advance.

Abstract: A vehicular control unit includes a display configured to display a menu screen including an object for activating an application for operating an apparatus mounted on a vehicle, and a controller configured to activate the application corresponding to the object in accordance with control information acquired from a touch sensor. The controller is configured to set a first stage and a second stage threshold values that are related to data based on pressing, and switch the menu screen when the data based on pressing reaches the second stage threshold value.

Abstract: The present disclosure provides a power supply apparatus, which provides an output voltage outputted by a DC/DC power circuit to a power supply system of a load and includes: an external terminal which a load-side ground potential is applied to; an adding portion configured for adding the load-side ground potential applied to the external terminal to a set reference voltage; a low-pass filter (LPF) including at least one resistor and at least one capacitor, wherein the LPF inputs an LPF input voltage based on an adding result of the adding portion; and an error amplifier, wherein the error amplifier is inputted an LPF output voltage from the LPF as a reference voltage and inputted a feedback voltage based on the LPF output voltage. The error amplifier is included in the DC/DC power circuit. The output voltage is controlled according to an output of the error amplifier.

Abstract: A tactile sensation providing apparatus includes a touch sensor, a tactile sensation provider that provides a tactile sensation on a touch surface of the touch sensor, a proximity sensor that detects the approach of an object to the touch sensor, and a controller that starts driving of the tactile sensation provider in accordance with detection by the proximity sensor.

Abstract: A control method that is achieved by a refrigerator application installed in portable terminal, the control method including the steps of instructing an operating system (OS) of portable terminal to connect to a refrigerator in operation in a software access point mode, and sending a service set identifier (SSID) of an access point and a password for connecting to the access point to the refrigerator. An SSID of the refrigerator that operates in the software access point mode, and a password for connecting to the refrigerator that operates in the software access point mode are incorporated in the refrigerator application in advance.