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Power control circuit
A power control circuit includes a switching regulator for converting voltage of external electric power into a medium voltage, a series regulator for converting...
Electrical actuator system and vehicle air conditioner using the same
In a vehicle air conditioner with an electrical actuator system, a transmission mechanism transmits a rotation force of an electrical motor to an air mixing door...
Motor driving device
A temperature sensor (33) detects the temperature of a MOS transistor (7), and a current detecting circuit (35) detects current flowing in the MOS transistor...
Stator winding with coated insulation film arrangement for a rotary
A vehicle rotary electric machine includes a rotor, a stator having a stator core and a stator winding mounted in the stator core and a pair of frames for...
Bearing device and AC generator for vehicles using the same
An AC generator for a vehicle includes front and rear bearings held by a housing, a stator disposed in the housing, a rotor having a rotation shaft rotatably...
Stabilization of dopant concentration in semiconductor device having
A method for manufacturing a semiconductor device includes: forming a trench in a predetermined layer of a semiconductor substrate; heating the substrate having...
Manufacturing method of semiconductor device
By improving profile of impurity concentration in a channel portion of an FET or an IGBT of a trench gate type, variation of threshold value is lessened, and a...
Adsorbent for heat utilization system, adsorbent for regenerator system,
regenerator system comprising the...
An adsorbent for regenerator systems, to a heat utilization system and a regenerator system that comprise the adsorbent, and to a ferroaluminophosphate and a...
Through-in grinding method and through-in grinding apparatus
In centerless grinding there are the in-feed and the through-feed scheme, each having their respective advantages and disadvantages.When a work being machined by...
Pedestrian-vehicle collision detecting apparatus
A pedestrian collision detecting apparatus for motor vehicles is provided which works to distinguish between impacts with pedestrians and other sorts of impacts...
Heat exchanger having projecting fluid passage
A heat-exchanging plate member has a pair of heat-exchanging plates, each of which has projection ribs and fluid passage forming portions arranged alternately....
Heat exchanger for cooling air
In a heat exchanger for cooling air, tubes are disposed vertically and header tanks are connected to the ends of the tubes. The lower side header tank is formed...
Heat exchanger module
Brackets 3 made of resin are provided between the radiator 1 and the condenser 2, and the heat exchangers 1 and 2 are secured to the brackets 3, so that heat...
Pressure sensor and related method
A pressure sensor and related manufacturing method are disclosed wherein a connector case 10 is coupled to a housing 30 in a unitary structure. The connector...
A pressure sensor includes a semiconductor substrate having a diaphragm in which an electrical circuit including a gauge resistance is formed, an insulation film...
Pressure sensor having sensor chip and signal processing circuit mounted
on a common stem
A pressure sensor for detecting a pressure such as a brake oil pressure in an automobile is composed of a cylindrical stem, a sensor chip and a circuit board for...
Integrated drain tube plumbing tray
A mounting arrangement for an automobile heating core includes a dash panel defining a boundary between a passenger compartment and an engine compartment. The...
Manufacturing method of rigid-flexible printed circuit board and structure
In a manufacturing method of a rigid-flexible printed circuit board, slits for defining two sides of a removing portion are formed in a part of plural resin...
Image display system scrolling image at high speed using data compression
When a user pushes a scroll-direction key, an ECU obtains, from a memory, a division map corresponding to a division located in a direction designated by the...
Operational amplification circuit, overheat detecting circuit and
In a circuit according to the present invention, a multi-collector transistor is provided which includes first to third collectors so that, when a current does...
Rotational angle detecting device
In a rotational angle detecting device, an auxiliary magnet is disposed so as to surround a Hall element around the Z-axis, so that variation of offset magnetic...
Piezo actuator drive circuit
A piezo actuator drive circuit comprises a charging path for charging a piezo stack that can be driven by being charged and discharged, an arithmetic circuit for...
Stator for vehicular rotary electric machine and a manufacturing method
To secure insulation between electrical conductors at a coil end, a first electrical conductor at one coil end is arranged so as to intersect a radially adjacent...
Method and apparatus for correcting sensor signal in temperature
A slope correction signal setting unit is configured to output selectively one of a plurality of direct current signals according to the sensed temperature...
Two-dimensional code, methods and apparatuses for generating, displaying
and reading the same
In a two-dimensional code, a plurality of unit cells are arranged in two-dimension. Each of the unit cells indicates one of at least three colors, such as,...
Injection control system of internal combustion engine
An electronic control unit (ECU) of an injection control system of an internal combustion engine measures an engine rotation speed in a period from a time point...
Capacitive humidity sensor
A capacitive humidity sensor includes a detection portion and a reference portion. The detection portion includes detection electrodes and a moisture sensitive...
Secondary air supply system
In the disclosed secondary air supply system, an on-off valve (13) is driven by the discharge pressure of an air pump (12). A diaphragm chamber (44) is arranged...
Method of manufacturing stator winding of rotary electric machine
A method of manufacturing a stator winding includes a twisting step of U-shaped conductor segments having a pair of straight portions by moving the straight...
Apparatus and method for detecting abnormality of a vibration-type angular
velocity sensor, abnormality...
An acceleration sensor, installed together with an angular velocity sensor in the same casing, detects the acceleration induced by the external vibration. Its...
A vehicle navigation system has a plurality of maps, measurement modes, and operation modes. When the measurement mode is a standard in an accuracy priority...
Car navigation system prioritizing automatic travel road
Road map data includes node data indicating a branch point, a junction point, or an intersection point and link data indicating a road between the preceding...
A wireless terminal is designed to prevent the user from having to wait a long time in case fetching of search data takes a long time. The wireless terminal, if...
Radio terminal and fault detection method
Method for detecting transmission power faults in cellular telephones without detecting transmission power. A microcomputer compares a criteria B with an...
Electronic control unit
An electronic control device having a high heat dissipating ability includes a printed board secured to an enclosure and interposed between a case and a cover...
Electronic circuit device including heat-generating element mounted on
An electronic circuit device including a heat-generating element is mounted on a circuit board composed of three laminated layers: a heat-receiving layer on...
An antenna device includes a ground plane, a first radiation element, and a second radiation element that is entirely disposed within the first radiation...
Analog-to-digital converter and method of analog-to-digital conversion
The A/D converter has first and second PPDC circuits (pulse-phase-difference coding circuits). The first PPDC circuit performs A/D conversions on the reference...
A/D conversion device having input level shift and output correction
In an A/D conversion device, one level shift circuit shifts an input voltage to the low potential side by Vt1, and another level shift circuit shifts the input...
On-vehicle device including numerical information notification function
In an ETC on-vehicle device (1), notification of toll amount information is given with a sound production pattern of a buzzer (17). The toll information...
Rotational angle sensing device and assembling method thereof
A magnet is provided to one of two members, which make relative rotation therebetween. First and second Hall elements are arranged adjacent to each other and are...
Spark plug designed to enhance strength of joint of noble metal member to
An improved structure of a spark plug is provided for improving the mechanical strength of joints between a noble metal member made of Ir-alloy and a ground...
Rotary electric machine
A rotary electric machine having an armature winding that includes three first phase-windings that form a .DELTA.-connection winding having output ends and three...
Semiconductor device having aluminum and metal electrodes and method for
manufacturing the same
A semiconductor device includes a semiconductor substrate; an aluminum electrode disposed on the substrate; a protection film disposed on the aluminum electrode;...
Blower unit and air conditioning unit including the same and method of
controlling the same
A blower unit of an air conditioning unit including a scroll casing including a first engaging portion, a fan casing including a first engaging portion, and a...
Inexpensive and easy-to-handle structure of optical information reading
An optical information reading apparatus is provided which is made of an assembly of a barcode reader and a personal digital assistant (PDA). The barcode reader...
Vehicle air conditioner with hot-gas heater cycle
A vehicle air conditioner selectively switches one of a cooling mode in which an interior heat exchanger of a refrigerant cycle is operated as an evaporator for...
Acceleration pedal apparatus
An accelerator pedal is positioned at a kickdown position. Then, an output value of a measurement device of an accelerator pedal position sensor is measured....
Sensor having resin mold casing and method of manufacturing the same
A sensor includes a sensing portion for sensing physical quantity, a connector portion integrated with the sensing portion for electrically connecting the...
Vibration type angular velocity sensor
To cancel in-phase components acting on vibrators of first and second sensor units in an angular velocity sensing direction Y, a differential amplification...