An integrated power supply supervisory circuit (7) for an automotive electrical component unit, ECU (1), comprising at least one microcontroller (2) supplied with an electrical power provided by a power supply regulator (5) of said electrical component uni...

A switching rectifier circuit according to the present invention includes: a switch (M1) coupled between a first alternating-current voltage (VAC1) and a direct-current voltage (VDC); a switch (M2) coupled between a second alternating-current voltage (VAC2...

A charge control device of the disclosure including a charger to perform a constant current charge control to maintain a charge current to an electric double-layer capacitor as a predetermined charge current value for a constant current charge period after...

A voltage control circuit controlling a gate-source voltage (Vgs) of a reverse polarity protection MOSFET (2) which is provided between a DC-voltage source (3) of a vehicle and a supply voltage terminal (Vin) of an integrated circuit (4), wherein said volt...

An electronic device (100) includes a power supply system (1) and a load circuit (2) connected to the power supply system (1). The load circuit (2) mutually switches between the first mode and the second mode. In the first mode, the load circuit (2) operat...

In an angular velocity sensor, an upper electrode (11) of a first piezoelectric element (D1) and a lower electrode (12) of a second piezoelectric element (D2) are connected to an input terminal (21a) of a first Q/V conversion circuit (21), and a lower elec...

An automobile LED driving device includes a current setting portion to set multiple reference currents independently from one another for multiple respective current setting resistors connected externally, a current controller to select one of the multiply...

The vehicle traveling information recording device of the present invention comprises a camera unit for acquiring image information relating to outside of a vehicle; a recording unit for recording the image information from the camera unit; an abnormality ...

An object of the present invention is to provide a stable protonically-conductive membrane for fuel cell having a high reliability. Another object of the present invention is to provide a high efficiency fuel cell having a high mechanical strength which op...

A circuit board (1) is provided upon which a predetermined number of semiconductor elements (5a, 5b, 6), including at least a field-effect transistor for charge and discharge, are mounted. A predetermined number of passive elements (7, 8a~8c, 9a~9g) are al...