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Brushless motor driving device
A brushless motor driving device having a current detecting unit for detecting a phase-current of a brushless motor, a voltage detecting unit for detecting a...
Fuel pump for high torque in compact structure
In a fuel pump, four permanent magnets are installed in a housing. An armature is installed inside the permanent magnets rotatably. Six magnetic pole coil...
Enhancement of membrane characteristics in semiconductor device with
A semiconductor device having a membrane includes a semiconductor substrate, which has an active surface, and a membrane. A cavity is located between the active...
Fuel cell system with improved startability
A fuel cell system is provided which includes a fluid pump such as an ejector pump. The fluid pump is designed to be driven by energy of air flowing within an...
Membrane type gas sensor and method for manufacturing membrane type gas
A gas sensor includes a semiconductor substrate and a sensing membrane. The sensing membrane is located at the bottom of a recess, which is formed by etching the...
Gas sensor element containing a getter
The present invention provides a gas sensor element and its production method, in which poisons are trapped in a porous protective layer to prevent them from...
Mechanical fuse and method of manufacturing the same
An inexpensive mechanical fuse having a high fatigue limit ratio and high rupture reliability, and superior in forming performance, and a method of manufacturing...
Semiconductor dynamic quantity sensor
A capacitance type semiconductor dynamic quantity sensor includes a substrate having a support layer and a semiconductor layer mounted on the support layer, a...
Heat-radiation type flow sensor
In a heat-radiation type flow sensor, a heater resistor is connected to a fixed resistor in series with a transistor. An electrical potential between the heater...
Method for making stator of rotary electric machine
A rotary electric machine has a stator core and a winding. The winding has a plurality or sub-winding sets which are mounted on the stator in the order. Each of...
Electric control unit
In a electronic control unit, a computer is operable based on a first power supply voltage output from a power supply circuit. The computer executes a fault...
On-vehicle electronic control apparatus with timer-based power supply
An auxiliary circuit continuously executes a timer counting operation under a condition that electric power is directly supplied from a vehicle battery to the...
Electric power steering system having failure detection apparatus
An electric power steering system comprises a three-phase brushless DC motor, a steering torque detector, a resolver for detecting a resolver rotation angle of...
In-vehicle equipment remote control system
In a security ECU, a CPU instructs a request generation circuit to generate a request signal in the normal operation mode. Thereafter, the CPU shifts from the...
Trapezoid signal generating circuit
A trapezoid signal generating circuit has a charging and discharging circuit for a capacitor to generate a trapezoid signal which has less change at its rising...
Rotation angle detecting device
A rotation angle detecting device includes a columnar permanent magnet that has a generally ring-shaped cross-section and a pair of magnetic poles, a pair of...
Load-driving device and method of driving load
A device for driving a load such as an electric motor for driving a fan mounted on an automobile includes a semiconductor power FET for supplying a load current...
Ground electrode structure of a spark plug for a gas engine
A spark plug for a gas engine includes a ground electrode body and a center electrode body. A ground electrode of the ground electrode body is welded on a...
Semiconductor device provided by silicon carbide substrate and method for
manufacturing the same
A semiconductor device includes a first field effect transistor including a source and a gate and disposed in a silicon carbide substrate; and a second field...
A Fabri-Perot filter includes: a substrate; a first mirror disposed on the substrate; and a movable mirror unit facing the first mirror with a gap therebetween....
Sensor and temperature sensor capable of automatic installation
A temperature sensor includes a substantially rod-shaped guide portion 28 vertically protruding from a vertical wall 20c of a substrate. A harness 40 is fixed to...
Exhaust gas heat exchanger
A tube 101 is constituted by a pair of plates 111a, 111b which are fitted with each other in such a manner as to put an inner fin 101b between the plate 111a and...
Structure of fuel injection pump for extending service life
An improved wear resisting structure of a fuel injection pump is provided. The fuel injection pump has a plunger reciprocating to pressurize fuel within a...
Differential pressure detection type pressure sensor and method for
manufacturing the same
A differential pressure detection type pressure sensor includes: a casing having a concavity; a pressure detection element disposed on a bottom of the concavity;...
Vapor compression refrigerator
A vapor compression refrigerator having a refrigeration cycle (200) is disclosed. In a Rankine cycle (300), a refrigerant is circulated through a pump (310), a...
Air conditioning system
An air conditioning system has a compressor that compresses a refrigerant and is capable of changing a flow rate of the refrigerant to be discharged, and an...
Battery cooling apparatus with sufficient cooling capacity
A battery cooling apparatus for positively cooling an in-vehicle battery is disclosed. Air that has passed through a cooler (5) is supplied to batteries (1), and...
Exhaust gas cleaning system for internal combustion engine
A diesel particulate filter (DPF) having an oxidation catalyst is disposed between exhaust pipes of an internal combustion engine. An exhaust gas temperature...
Method of manufacturing a micromechanical structure
A microactuator includes a stationary element, a movable element, and a first microstructure. The stationary element is fixed on a substrate and has a plurality...
Antenna configuration and radar device including same
A radar device (2) includes plural transmission antennas and plural reception antennas. The reception antennas constitute a reception-side antenna portion (20)...
Magnetic noise reduction method for AC rotary electric machine, and motor
control apparatus and AC rotary...
The invention provides techniques for reducing or altering the magnetic noise of an AC rotary electric machine. A magnetic noise reducing harmonic current of...
Display panel and method of manufacturing the same
A display panel includes a transparent image recording sheet having electrophotographically formed thereon at least a background portion, wherein space factor of...
Piezoelectric ceramic composition, its production method and piezoelectric
This invention provides a piezoelectric ceramic composition that does not contain lead, can be sintered at a normal pressure and has a high electro-mechanical...
Fluid filter having drain structure and drain tool
A drain structure for a fluid filter includes a cap internally forming a drain hole. The cap receives a valve member urged by an urging means in a direction, in...
Reinforcing structure for automotive vehicles
A reinforcing structure for automotive vehicles is disclosed, in which cross car beams (1) constituting a reinforcing structure for the instrument panel or the...
Electromagnetic driving apparatus and electromagnetic valve
A bottomed cylindrical member is disposed inner side of a stator core and a coil. The cylindrical member is made of non-magnetic material such as a stainless...
Front end structure of vehicle
In a front end structure of a vehicle, a front end panel and a fan shroud are provided as separate parts. The front end panel and the fan shroud form...
Ignition device for internal combustion engine
An ignition device for an internal combustion engine has a primary and secondary coils of an ignition coil, a center and ground electrodes of a spark plug, a...
Control device for internal combustion engine
Deterioration of emission is restrained even if the actual control condition including the required torque is different from the set control condition. An ECU...
Control apparatus of internal combustion engine
A control apparatus of an internal combustion engine includes a fuel pressure sensor to detect the pressure of the fuel supplied from a fuel pump to an injector;...
Thermal-process-type air-flow-rate sensor
A sensor element (10) and sensor supporting body (30) are fixed on a jig (80) by adhesive (48) so that a surface (10A) of the sensor element (10) and a surface...
Impact sensor for detecting an impact of a collision
An impact sensor includes the first and the second electrodes arranged a predetermined distance away from each other in a tube insulator. The impact sensor is...
Freezing prevention system for refrigeration device and air conditioner
using the same
A freezing prevention system for a refrigeration device includes a freezing-prevention temperature sensor for detecting a refrigerant temperature in a...
Microcomputer using a shared counter
In a microcomputer, a watch-dog timer and a sleep control timer share a counter in their signal generating circuits. In a normal operation mode, an AND gate is...
Enhanced bearer overhead monitoring for improved position location
performance for wireless mobiles
A mobile station monitors common channels for information that can be used to associate a location to an infrastructure element identification. The mobile...
Overtemperature detection device and semiconductor integrated circuit
In a device having multiple power components adjacently arranged to each other, two diodes are disposed adjacent to each power component. The first diode is...
Vehicular pedestrian determining system
A pedestrian determining system mounted on a vehicle determines a collision object for protecting a pedestrian. An impedance sensor is included for detecting an...
System for controlling a valet mode of a vehicle
A remote control device for controlling a reduced operational mode of a vehicle includes a portable communication device operable to communicate with the...
Rotation angle detecting device including magnetic member with concave
A rotation angle detecting device for a rotation object includes a rotor and a pair of permanent magnets and a magnetic detector disposed at the rotation axis of...
Ring type current sensor
A ring type current sensor has a C-shaped core and a magnetic sensor. An inner circumference of the core defines a detection field of a current. Both end faces...