#ROHM CO LTD [JP]

Automotive electrical component unit

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 pow…

DRIVE·Jan 15·1 min read

B60R16/03 ROHM CO LTD [JP]

SWITCHING RECTIFIER CIRCUIT AND BATTERY CHARGER USING SAME

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) co…

DRIVE·Sep 25·2 min read

H02J7/02 ROHM CO LTD [JP]

Charge control device

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 …

DRIVE·Apr 17·1 min read

H02J7/04 ROHM CO LTD [JP]

A method and circuit for controlling a gate-source voltage of a reverse polarity protection MOSFET

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 termin…

DRIVE·Aug 22·1 min read

H02H11/003 ROHM CO LTD [JP]

POWER-SUPPLY CONTROL DEVICE, POWER SUPPLY SYSTEM, AND ELECTRONIC DEVICE

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 sec…

DRIVE·May 9·1 min read

G06F1/3293 ROHM CO LTD [JP]

ANGULAR VELOCITY SENSOR, AND SYNCHRONOUS DETECTION CIRCUIT USED THEREIN

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) …

DRIVE·May 2·1 min read

G01C19/56 ROHM CO LTD [JP]

Automobile LED driving device

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 extern…

DRIVE·Apr 11·1 min read

B60Q11/005 ROHM CO LTD [JP]

VEHICLE TRAVELING INFORMATION RECORDING DEVICE

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…

DRIVE·Mar 23·1 min read

B60R16/0236 ROHM CO LTD [JP]

PROTON CONDUCTIVE MEMBRANE, METHOD FOR PRODUCING SAME, AND FUEL CELL USING SAME

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 efficie…

DRIVE·Jun 7·1 min read

H01B1/122 ROHM CO LTD [JP]

CIRCUIT MODULE FOR PROTECTING A RECHARGEABLE BATTERY AND METHOD OF MANUFACTURE THEREOF

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 predeterm…

DRIVE·Feb 13·1 min read

H01M10/4257 ROHM CO LTD [JP]