摘要:
A vehicle generator controller for regulating the output voltage from a generator which charges a battery mounted on a vehicle comprises battery voltage detection means for detecting the drop of a battery voltage, a switching element for controlling the field current of the generator, gradual increase control means for gradually increasing the current generated by the generator by gradually increasing the switching element by intermittently operating the switching element when the battery voltage drops and gradual increase prohibition means for canceling the gradual increase control at the beginning of the drop of the battery voltage and gradually increases the field current after the conducting ratio of the switching element is set to 100%. With this arrangement, the vehicle generator controller suppresses a torque shock caused in response to the turn-on of an electric load as well as sufficiently suppresses the drop of a battery voltage.
摘要:
A control device for a vehicle A.C. generator which is used to supply a vehicle load such as a battery. The control device includes a semiconductor switching element for controlling a field current in a field winding of the generator. The control device also includes a ground pattern conductor arranged between a power source terminal connecting the semiconductor switching element and the load and a control signal input terminal for inputting a control signal to the semiconductor switching element. The ground pattern conductor is further connected to a ground terminal of the semiconductor switching element. This arrangement affords protection from short circuiting of the power source terminal and the control terminal.
摘要:
In a manufacturing method of a semiconductor device, a gate insulating film is grown in an active region. Thereafter, an N-type polysilicon film is formed on the gate insulating film and is patterned so that a gate electrode and a polysilicon electrode are formed. Next, arsenic ions are implanted onto entire faces of the gate and polysilicon electrodes so that a source-drain region is formed on a substrate. An interlayer insulating film is then formed on an entire face of the source-drain region, etc. Thereafter, a contact hole is formed on a drain region in a position in which the drain region partially overlaps the polysilicon electrode. A surface portion of the polysilicon electrode is exposed into the contact hole. Thereafter, phosphoric ions are implanted through the contact hole with the interlayer insulating film as a mask. The implanted ions are thermally processed to activate these implanted ions. Thereafter, metal wiring is formed. Thus, resistance of a common contact having s three-dimensional structure is reduced.
摘要:
A door lock apparatus with automatic door closing mechanism comprises a latch engaging with a striker secured to a vehicle body, an automatic door closing motor for over-rotating the latch at its half-latched position beyond its full-latched position while the motor rightly rotates, a switch adapated to turn to continuously ON when the latch is between the half-latched and full-latched positions and turn to OFF when the latch is at other position than between the half-latched and full-latched positions, and a controller for rightly rotating the motor when door closing operation turns the switch from its OFF condition to ON condition and reversely rotating motor when the switch turns from ON to OFF.
摘要:
A method for manufacturing a C-MOS thin film transistor device has the steps of implanting the n-type impurity only in the upper layer portion of the source-drain section of the n-channel transistor by controlling implantation energy of the n-type impurity; implanting the p-type impurity in the source-drain section and the gate electrode of the p-channel transistor, and the source-drain section and the gate electrode of the n-channel transistor by controlling implantation energy of the p-type impurity; and activating the implanted n-type and p-type impurities in the source-drain section of the n-channel transistor, and activating the implanted p-type impurity in the source-drain section and the gate electrode of the p-channel transistor and gate electrode of the n-channel transistor. The n-type and the p-type may be respectively changed to the p-type and the n-type in the above construction.
摘要:
A voltage regulator circuit for an AC generator is disclosed which comprises a holding circuit for holding the power transistor, which is coupled in series with the field winding of the generator, in the non-conductive state after the Zener diode of the voltage detecting circuit is turned off, and a releasing circuit for releasing the holding action of the holding circuit periodically at a predetermined interval. The holding circuit includes a pair of transistors turned on and off in phase and in antiphase with the power transistor, respectively, the transistor in antiphase, when conductive, holding the power transistor in the non-conductive state. The releasing circuit, on the other hand, includes a pulse generator for generating trigger pulses periodically at a predetermined interval, and a transistor which is turned on by these trigger pulses to turn off the transistor in antiphase holding the power transistor in the non-conductive state. The interruption frequency of the excitation current, i.e., the frequency of turning on and off of the power transistor, is equal to the frequency of releasing actions of the releasing circuit occurring at said predetermined interval.
摘要:
A photoelectric conversion device includes a pixel cell including a phototransistor, a reference cell including a reference transistor having a temperature characteristic identical to that of the phototransistor and having a fixed electrical state, an analog-to-digital converter that converts an analog output of the pixel cell into a digital output, a correction amount computation unit that computes a correction amount for the digital output of the analog-to-digital converter based on an output of the reference cell and a reference value, and a correction unit that corrects the digital output of the analog-to-digital converter based on the correction amount.
摘要:
A sense circuit includes a differential amplifier circuit including an inverting input section, a non-inverting input section and an output section, an electrical capacitor connected between the inverting input section and the output section, and a field effect transistor including a source, a drain, and a gate. One of the source and the drain is connected to the inverting input section, and the other of the source and the drain is connected to the output section. A reference potential is supplied to the non-inverting input section, and an output section of a photoelectric conversion cell having an added switching function is connected to the inverting input section.
摘要:
The invention relates to a semiconductor device having a vertical transistor bipolar structure of emitter, base, and collector formed in this order from a semiconductor substrate surface in a depth direction. The semiconductor device includes an electrode embedded from the semiconductor substrate surface into the inside and insulated by an oxide film. In the surface of the substrate, a first-conductivity-type first semiconductor region, a second-conductivity-type second semiconductor region, and a first-conductivity-type third semiconductor region are arranged, from the surface side, inside a semiconductor device region surrounded by the electrode and along the electrode with the oxide film interposed therebetween, the second semiconductor region located below the first semiconductor region, the third semiconductor region located below the second semiconductor region. The electrode is insulated from the first to third semiconductor regions, and current gain is variable through application of voltage to the electrode.
摘要:
In a thermally insulated double pipe, a structure is provided in which an inner pipe may be prevented from being appreciably offset relative to an outer pipe due to thermal contraction. The structure includes an inner pipe 101, within which a superconducting cable is mounted, an outer pipe 103 within which the inner pipe is housed, with the inner and outer pipes constituting a thermally insulated double pipe, and an inner pipe support member 104 supporting the inner pipe. The inner pipe support member 104 is secured to the inner and outer pipes.