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Constant voltage circuit with a substitute circuit in case of input voltage
A constant voltage circuit robust to the input voltage lowering is disclosed. The invention is applied to a constant voltage circuit fed with an input voltage...
Rotary electric machine having auxiliary poles
A rotary electric machine includes a plurality of permanent magnet main poles disposed on an inner periphery of a yoke and a plurality of auxiliary poles...
Activating device for vehicle passenger protection system
In an activating device for a passenger protection system in a vehicle, erroneous activating operation caused by improper operation of a microcomputer or...
Semiconductor device having lateral MOSFET (LDMOS)
In an LDMOS, an n-type region 6, which is formed to have a concentration higher than that of an n-type substrate 1 and whose concentration gradually increases...
Aluminum alloy brazing sheet for a heat exchanger
An aluminum alloy brazing sheet having a four-layered structure, of sheet thickness 0.2 mm or less, and having a core alloy, a filler alloy of an Al--Si alloy on...
The present invention provides a vehicle-drive system which can recovers inertial power from a vehicle. Torque of an internal-combustion engine is transferred to...
Vehicle air conditioning ventilation system and apparatus having positional
doors and blow-switching modes
A vehicle air conditioning flow apparatus is constructed of a heat exchanger that heats and cools air that is directed along an air flow path ultimately directed...
Semiconductor mechanical sensor
A semiconductor mechanical sensor having a new structure in which a S/N ratio is improved. In the central portion of a silicon substrate 1, a recess portion 2 is...
Structure of electric connector of gas sensor
An improved structure of an electric connector of a gas sensor is provided which is designed to establish a firm electric connection between each electrode...
Air-conditioning device for a vehicle and device for controlling an engine
for a vehicle
A device for controlling an engine for a vehicle and an air-conditioning device for a vehicle capable of suitably controlling the blow-out rate of an...
Apparatus for detecting deterioration of exhaust gas purifying catalysts
An engine has an upstream-side catalyst and a downstream-side catalyst. First and second air-fuel ratio sensors are provided on the upstream and downstream sides...
Multi-stage pulley and production method thereof
An annular groove portion is formed between portions corresponding to groove portions and thereafter the groove portions are formed while the annular groove is...
Method of calking cylindrical member in hole
A cylindrical member is placed in a dead-end hole formed in a housing made of a material such as aluminum. A peripheral portion of the hole is pressed down to...
Fail-safe system in integrated control of vehicle
A fail-safe system used in integrated control of a vehicle includes structural-element control portions. Preset priority degrees are given to the...
Mobile robot, automated production system, and mobile robot system
A mobile robot placed on an automatic production line is provided. The mobile robot collects information on operating conditions of other mobile robots placed...
Multiple class of service determination for digital cellular telephones
Digital cellular telephone with a variable rate vocoder is used with a number of different classes of service. A first class of service provides always constant...
Adjustable coding detection in a portable telephone
A user's individual hearing characteristics are obtained and stored. Those characteristics are sent to the far end cellular telephone. The vocoder in the far end...
Voltage regulator of vehicle AC generator
A voltage regulator of a vehicle AC generator includes a switching element connected between a battery and a field coil, a control circuit for controlling the...
Stacked piezoelectric device and method of fabrication thereof
A stacked piezoelectric device and a method of fabrication thereof includes a piezoelectric stack having a first side electrode and a second side electrode,...
Photo-detection sensor and method of manufacturing the same
In a sensor chip for forming the light receiving elements of a photo-detection sensor, p-type regions of the photodiodes are formed in a surface portion of an...
Sealed-type electric compressor having refrigerant passage
A refrigerant passage within a main shaft includes an axial refrigerant passage extending in parallel with the main shaft from the end surface thereof, and a...
Measuring instrument with an indicator
A display is provided having five light-emitting elements, constituting a first light source, are provided on the surface of a wiring board. These sources...
Vehicle air conditioner
A vehicle air conditioner has a case and a heater core disposed in the case substantially horizontally. The case has a center face opening formed in a side wall...
Forward condition detecting apparatus for vehicles
A forward condition detecting apparatus for vehicles has a laser radar device mounted on a vehicle. A front height sensor and a rear height sensor detect a front...
AC generator for vehicles
An AC generator for a vehicle including a rotor with a fan, a stator disposed around the outer periphery of the rotor, and frame. The stator includes a laminated...
Electric rotary machine having a plurality of conductor segments and method
of manufacturing the same
The invention provides a rotary electric machine and method of manufacturing same, having a plurality of conductor segments inserted in a plurality of slots of a...
Method of manufacturing a circuit substrate
A multilayer wiring substrate has a passive circuit element disposed on an insulating base substrate, and an insulating layer is disposed on the insulating base...
Brake control apparatus for vehicle
A characteristic changing device is adopted in the inventive brake control system for the vehicle. The characteristic changing device sets a differential...
Valve timing adjusting device
A seal plate partitions a sectorial space which houses a vane and a circumferential groove which houses a torsion spring, so that the sectorial space is formed...
Sensing apparatus for detecting a physical quantity, including memory
circuits storing characteristics...
A sensing element detects a predetermined physical quantity and generates a sensor signal. A signal processing circuit processes the sensor signal and generates...
Vehicle alternator with anti-hunting feature and vehicle alternator control
Shift means shifts a rotation speed range to a low rotation speed side based on an electricity amount related to rotation speed. In the rotation speed range,...
Alternating-current generating apparatus for an automotive vehicle
An automotive alternator is driven by an internal combustion engine via a one-way clutch. When the internal combustion engine is in an idling condition, the...
Silicon carbide semiconductor device and method for manufacturing the same
In an accumulation mode MOSFET, a surface channel layer is disposed on a p.sup.- type base region between an n.sup.+ type source region and an n.sup.- type epi...
Vehicle air conditioner with heating capacity control of cooling water
In a vehicle air conditioner where air blown into a passenger compartment is heated in a heater core using cooling water for cooling a fuel cell system as a...
Gas concentration sensing apparatus
A gas concentration sensor comprises a pump cell for detecting an oxygen concentration in an exhaust gas and a sensor cell for detecting a NOx concentration in...
Method of making update information of map data and differential data of
map data updating system
A differential update method for vehicular navigation apparatus, which can precisely update map data stored in a storage medium to up-to-date contents. When a...
Magnetoresistive type position detecting device
In a position detecting device for a moving object, such as a camshaft gear, having ridges and valleys, magnetoresistive elements are disposed in positions...
Piezoelectric laminate body
This invention provides a piezoelectric laminate body that limits, to a minimum, the difference of the quantity of displacement occurring in the boundary between...
Silicon carbide semiconductor device
A vertical type power MOSFET made of silicon carbide includes a surface channel layer doped with nitrogen as dopant with a concentration equal to or less than...
Insulated gate bipolar transistor and method of fabricating the same
An IGBT having a buffer layer for shortening the turn-off time and for preventing the latching up is improved. The buffer layer of the present invention is not...
Molten metal vessel for filtering impurities
A molten metal vessel includes a first chamber for containing molten metal such as molten aluminum therein, a filtration chamber in which impurities contained in...
Method and apparatus for fabricating high quality single crystal
A crucible for growing a single crystal therein has a seed crystal attachment portion and a peripheral portion surrounding the seed crystal attachment portion...
Respiratory disease monitoring system
A respiration monitoring system monitors the state of disorder of the respiratory system of a sleeping patient based on the detection of respiratory body...
Semiconductor physical quantity sensor
A semiconductor angular velocity sensor has a frame-shaped base portion, a detection oscillator connected to the base portion through a detection beam portion,...
Semiconductor physical quantity sensor
A semiconductor physical quantity sensor from which a stable sensor output can be obtained even when the usage environment changes. A silicon thin film is...
Capacitive physical quantity detection device
A capacitive semiconductor acceleration sensor capable of efficiently performing a self-diagnostic procedure without having to provide any separate electrodes...
Micro-heater and airflow sensor using the same
An airflow sensor including a micro-heater having a film structure, which can reduce a warpage of the film structure even when a thick ness of the film structure...
Tire air pressure warning device
In a tire air pressure warning device, an outside impact such as hydraulic brake pressure is intentionally applied in a pulsating way to a tire when the vehicle...
Air passage controlling system for air conditioning apparatus
An air passage controlling system for selecting an air outlet mode of an air conditioning apparatus includes a driving shaft, an intermediate shaft, a driven...
Refrigerant evaporator with refrigerant distribution
An evaporator has plural tubes arranged in parallel with each other in a width direction perpendicular to an air flowing direction. The tubes are further...