90results about How to "Suppress output" patented technology

Even when the number of rewrite operations varies among erase unit areas, the number of rewrite operations is improved for all of the erase unit areas. A flash EEPROM 100 comprises a trimming value storing area 130 of storing a trimming value corresponding to each erase unit area 120 included in a memory cell array 110. When an erase operation and a write operation are performed with respect to a certain erase unit area 120, a regulator circuit 150 converts a voltage boosted by a booster circuit 140 to a level corresponding to the trimming value for the erase unit area 120. When a read determination circuit 170 detects an abnormality as the number of rewrite operations is increased, the trimming value is updated to a value which causes the regulator circuit 150 to increase the output voltage.

A photovoltaic element is obtained which allows use of a low-melting solder and can suppress reduction in reliability and output thereof due to mechanical stress or water intrusion.The photovoltaic element has a photoelectric conversion layer and a collector electrode provided on at least one surface of the photoelectric conversion layer. Characteristically, a collector electrode covering layer for covering a surface of the collector electrode is provided and a tab electrode for electrical connection to an exterior electrode is provided on a top surface of the collector electrode through the collector electrode covering layer. A portion of the collector electrode covering layer that lies between the tab electrode and collector electrode comprises a solder layer and another portion of the collector electrode covering layer that covers a lateral surface of the collector electrode comprises a thermosetting resin layer.

In some cylinder deactivation modes (e.g. virtual V-four operation mode in which two cylinders of a V-six engine are deactivated), ignition / combustion may take place in operating cylinders at uneven intervals. In this case, the output torque varies between the immediately subsequent operating cylinders after the deactivated cylinders in the firing order and the other operating cylinders. A multicylinder engine includes an ignition timing adjustment unit. When the ignition takes place in the operating cylinders at uneven intervals during cylinder deactivation, the ignition timing adjustment unit adjusts ignition timing in each of the operating cylinders to smooth the output torque of the operating cylinders.

A vehicle control apparatus is provided which is operative in an automatic engine stop mode to stop an engine automatically and in an engine restart mode to restart the engine automatically after the engine is stopped in the automatic engine stop mode so as to output a predetermined reference engine torque immediately after the engine is started. The vehicle control apparatus works to determine the travel performance of the vehicle required immediately after the engine has been restarted in the engine restart mode and control the torque outputted by the engine based on the determined travel performance so as to ensure the drivability of the vehicle after the engine is restarted automatically.

A pump delivery system including a pump mechanism for delivering liquids under pressure while also producing a pulsating output during operation, and a pump pulsation dampening attachment for dampening the pulsating output of the pump mechanism. The pump pulsation dampening assembly includes a pressurized vessel having an interior surface defining a chamber for receiving the liquid from the pump mechanism, the chamber also containing a pocket of pressurized air therein for absorbing the pulsating output generated by the pump mechanism.

A differential amplifier circuit includes: a first field-effect transistor being operable base on a non-inverted input; a first load circuit which is connected to the drain of the first field-effect transistor; a first current control circuit which is connected to the source of the first field-effect transistor; a second field-effect transistor being operable base on an inverted input; a second load circuit which is connected to the drain of the second field-effect transistor; a second current control circuit which is connected to the source of the second field-effect transistor; and a gain compensation circuit which is connected between the source of the first field-effect transistor and the source of the second field-effect transistor, thereby attaining a high-speed differential amplifier circuit with low jitters.

The present invention relates to a MOPA light source capable of obtaining pulse output by wavelength-conversion of pulse light of fundamental light wave using a simple configuration, and suppressing optical output using a simple method when processing is not performed. The fundamental light wave outputted from a seed light source is amplified in an optical amplification fiber. The amplified fundamental light wave is inputted to one end of a passive optical fiber, and propagates in the passive optical fiber. In the passive optical fiber, stimulated Raman scattering occurs upon propagation of the fundamental light wave. The light of fundamental light wave and light of stimulated Raman-scattered components are outputted from the other end of the passive optical fiber. The light outputted from the passive optical fiber is collimated by a lens, and is then inputted to a branching filter. The light inputted to the branching filter is wavelength-separated into light of stimulated Raman-scattered components having wavelengths longer than that of the fundamental light wave, and light having wavelengths equal to or less than that of the fundamental light wave.

A power supply device including a transformer having a primary winding and a secondary winding, and a switching element connected to the primary winding configured to drive the switching element to output voltage from the secondary winding includes a control unit configured to drive the switching element such that the switching element is turned on and, in which, in a case where the control unit performs an intermittent drive operation which repeats a period for which the switching element is driven and a period for which the drive of the switching element is stopped, in which the control unit drives the switching element such that the switching element is turned off before the voltage according to the current flowing to the primary winding reaches the voltage output from the secondary winding in the period for which the switching element is driven.

A liquid ejection device includes a switching circuit. The switching circuit includes: a multilayer wiring board including a first wiring layer and a second wiring layer; a first transistor and a second transistor mounted on the first wiring layer side of the multilayer wiring board; and a capacitor mounted on the second wiring layer side of the multilayer wiring board. When the multilayer wiring board is viewed in a plan view, a third via conductor is arranged in an area not overlapping a straight-line path connecting a source electrode of the first transistor with a drain electrode of the second transistor in a second wire.

In a power control device for a vehicle in which an electric motor for driving the vehicle to travel is supplied with power from a battery mounted on the vehicle and a fuel cell, a control unit sets a target charging rate (SOCt) of the battery in such a manner that the target charging rate decreases as a remaining fuel amount (Qf) of the fuel cell decreases after the power generation of the fuel cell is started during high-output / high-speed travelling and controls a power generation output (Pf) of the fuel cell based on a difference between the target charging rate (SOCt) and a current charging rate (SOC).

If it is determined that a brake pedal is pressed while an accelerator pedal is pressed, accelerator position limit control for bringing an accelerator position for engine control to a limit value corresponding to vehicle speed is performed, thereby securing safety at the time when both of the accelerator pedal and the brake pedal are pressed. If it is determined that the accelerator pedal is pressed after the brake pedal is pressed, the accelerator position limit control is prohibited, thereby responding to driver's intention to accelerate. If it is determined that the pressing of the brake pedal is cancelled during execution of the accelerator position limit control, accelerator position recovery control for returning the accelerator position for the engine control to an actual accelerator position is performed, thereby recovering normal running corresponding to the driver's intention to accelerate.

The present invention is a surface protective sheet for a solar cell including a polyethylene naphthalate film and an inorganic oxide film formed on one surface of the polyethylene naphthalate film, in which the absorbance of light having a wavelength from 350 nm to 400 nm is from 1% to 20% or the absorbance of light having a wavelength of 380 nm is from 1% to 20%, and a solar cell module using the same.

When a voltage conversion operation is started, a control circuit (30) performs an operation to obtain a voltage command value for each control timing with setting a target voltage obtained based on a torque command value (TR) and a motor rotation number (MRN) as a final value, and controls a boost converter (12) so as to match an output voltage (Vm) with the voltage command value. The control circuit (30) has a prescribed threshold value set to be lower than the target voltage. The control circuit (30) controls the boost converter (12) with setting an absolute value of a rate of change between control timings to a first value until the voltage command value reaches the prescribed threshold value. When the voltage command value becomes at least the prescribed threshold value, the boost converter (12) is controlled with setting the absolute value of the rate of change to a second value smaller than the first value.

The invention belongs to the technical field of water control of well completion construction operation and discloses a viscosity-sensitive flow control valve. A floating disc limiting device is arranged between a valve cover and a valve bottom; the valve cover, the floating disc limiting device and the valve bottom are connected and fixed via bolts; a floating disc is arranged between the floating disc limiting device and the valve bottom; the upper surface of the floating disc is a conical sealing surface; the surfaces opposite to the floating disc of the valve cover and the floating disc limiting device are conical sealing surfaces and are located on the same plane; formation fluid flows in via a fluid inlet in the valve cover, then successively flows through a flow-through channel between the floating disc and the valve cover, a flow-through channel between the floating disc limiting device and the valve cover and flow-through holes of the floating disc limiting device and finally flows out via oil outlet holes in the valve bottom. Through the viscosity-sensitive flow control valve, the normal production is carried out when the oil content is high; the floating disc can automatically float up to reduce the opening degree of the valve under the action of liquid pressure difference when the viscosity-reduced flow flows through the flow control valve during formation water production; the yield of the water is inhibited; the purposes of stabilizing oil and controlling water of production wells can be achieved.

The present invention relates to a housing, such as a transmission housing (103; 203), configured to control vibrations. A transmission housing (103) according to a first embodiment of the present invention has one or more vibration control panels (105) formed in a sidewall of the housing (103). The vibration control panel (105) is inset from a surrounding section of the sidewall (103). A transmission housing (203) according to a second embodiment of the present invention includes an elongate undulation (205) which forms a ridge and a corresponding groove in the transmission housing (203).

An electrical machine is coupled to a load which has a torque profile which varies with angle. The machine is coupled so that the torque ripple of the machine is synchronized with the torque ripple of the load in such a manner as to provide an efficient drive system which can start at any angular position. This allows the size of the electrical machine to be reduced to a point where its average torque may be below the peak requirement of the load.

A control apparatus for an AC-AC direct converter. The control apparatus includes a calculator providing a phase command θ* of an output voltage of the converter, a calculator providing a q-axis current iq by using output currents iu and iw and the phase command θ*, a detector detecting a pulsation component contained in the q-axis current iq, a calculator providing a phase correction magnitude θcmp so as to decrease the pulsation component, and an adder / subtractor correcting the phase command θ* by using the correction magnitude θcmp. This apparatus can decrease the output voltage distortion and low frequency torque pulsation and can suppress the increase of an output current without weakening a magnetic flux, even when the converter is operated in an overmodulation region.

Each of unit blocks (UB1, UB2) is provided with an output circuit (20) including a serial circuit of FETs (21) and (22). A power supply circuit (1b) can operate in a first mode for generating an output voltage (Vo) using only one of the output circuits (20) or in a second mode for generating the output voltage (Vo) using two output circuits (20) by synchronous / parallel driving. When switching from the first mode to the second mode, start of the synchronous / parallel driving from a state where the FET (22) on the low voltage side is turned on is inhibited (start of the synchronous / parallel driving is waited until the FET (21) on the high voltage side is turned on).

A multi-phase voltage converting device includes voltage converters each performing voltage conversion based on a control period selected from among a plurality of predetermined control periods, and a control device indicating the control period to the voltage converters. The control device updates the control period of voltage converters in a predetermined period related commonly to the plurality of control periods. The update period is a least common multiple of the plurality of control periods. The plurality of voltage converters are n in number, and the control device successively updates the control periods for the plurality of voltage converters with a time difference equal to 1 / n of the update period. Thereby, the multi-phase voltage converting device suppressing output voltage ripples can be provided.

A regulator circuit includes an operational amplifier, a buffer, a power transistor, a first feedback circuit, a current sensor, and second feedback circuit. The operational amplifier drives a first node with a first voltage generated by amplifying a difference between an input voltage and a feedback voltage. The buffer drives a second node with a second voltage generated by buffering the first voltage. The power transistor has a drain receiving a supply voltage, a gate connected to the second node, and a source connected to a third node. The current sensor generates a first sensing current based on the second voltage. The second feedback circuit generates a plurality of feedback currents corresponding to a ripple of the output voltage and enhances a speed at which the ripple is reduced by providing at least one of the plurality of feedback currents to the third node.

A video transmitter includes: a video resolution acquisition unit that acquires a resolution of a video signal; a wireless communication unit wirelessly transmitting the video signal and wirelessly receiving, from a terminal wirelessly receiving a video signal wirelessly transmitted, a received radio wave intensity and a minimum reception sensitivity at a time when wirelessly receiving the video signal; and a communication rate setting unit that sets a communication rate at a time when wirelessly transmitting the video signal according to the acquired resolution of the video signal. The wireless communication unit includes a transmission output control unit that controls the wireless communication unit to wirelessly transmit the video signal at the communication rate set by the communication rate setting unit and controls a wireless transmission output of the wireless communication unit to suppress a difference between the radio wave intensity and the minimum reception sensitivity.

A vehicle control device for a hybrid vehicle, which equipped with at least an internal combustion engine and a rotary electrical machine, that reduces the shock that is imparted to a vehicle when the internal combustion engine starts. The vehicle control device detects the running state of the vehicle and, if it is determined that the internal combustion engine will be started, adjusts the ignition timing according to the running state of the vehicle. The control device also improves the responsiveness of the hybrid vehicle when increased acceleration is required.

A gas sensor for measuring an amount of a measurement gas component, including a solid electrolyte having an internal space, a gas-introducing port for introducing measurement gas from an external space into the internal space, diffusion rate-determining means between the internal space and the gas-introducing port, and inner and outer pumping electrodes for pumping-processing oxygen contained in the measurement gas. The diffusion rate-determining means includes slits each having, when viewed in a plane substantially perpendicular to a longitudinal extension axis thereof, two dimensions, with at least one dimension of each slit being not more than 10 microns.

The invention discloses a cyclone type inflow control valve comprising a base pipe. A top cover and a sieving pipe sleeve the outside of the base pipe. A plurality of liquid inlets are formed in the middle of the base pipe; flow-limiting valves are installed at the liquid inlets and include upper end covers and bases; swirling chambers and swirling water chambers are arranged at the bases; nozzlescommunicated with the base pipes are arranged at the bottoms of the swirling chambers; guiding diversion grooves communicated with annular flowing channels and the swirling chambers are arranged on the side walls of the swirling chambers; nozzles communicated with the base pipes are arranged at the bottoms of the swirling chambers; and base pipe liquid inlets communicated with the flow-limiting valve are formed in the base pipe. The cyclone type inflow control valve has the following beneficial effects: the pressure drops of fluid flowing into the cyclone type inflow control valve can be adjusted automatically based on the nature of the fluid; and the cyclone type inflow control valve is suitable for the edge / bottom water reservoir and the gas capped reservoir with high anisotropy.

The invention discloses a method for the profile control by using a polymer at an offshore oilfield polymer flooding stratum, sequentially comprising the following steps of: (1) displacing a polymer used in the offshore oilfield polymer flooding process into a stratum with a distance more than 25 meters to a borehole by pad fluid; (2) injecting the aqueous solution of a flocculating agent into the processed stratum of the offshore oilfield in the step (1) from the borehole to obtain a flocculating constituent; and (3) displacing the flocculating constituent obtained in the step (2) to a stratum with a distance of 3-5 meters to an infiltration surface by displacing liquid so as to finish the profile control. The method can improve the recovery ratio of the offshore oilfield polymer flooding, and reduce the influence of the polymer on the post-processing of the produced liquid at the same time.

Provided is an exhaust gas processing device for a diesel engine which can carry out sufficient regeneration processing of a DPF. A DPF regeneration control section continues normal regeneration processing by a DPF regeneration control section when an accelerated regeneration starting operation section does not perform accelerated regeneration starting operation after notification of accelerated regeneration requiring information is started. The DPF regeneration control section prohibits the normal regeneration processing, and an accelerated regeneration re-requirement notification section starts notification of accelerated regeneration re-requiring information, when a PM accumulation amount estimate becomes equal to or higher than an accelerated regeneration re-requirement determination value J4. Thereafter, the regeneration processing of the DPF is not carried out unless the accelerated regeneration starting operation section starts the accelerated regeneration starting operation to cause the DPF regeneration control section to carry out the accelerated regeneration processing by the DPF regeneration section.

A flame produced within a premixer is promptly extinguished and a reduction in output power of a gas turbine associated with extinguishment is suppressed. In a gas turbine combustor including a diffusion burner and a premixed burner, the premixed burner is configured with a burner liner that surrounds the diffusion burner; a burner casing that surrounds the burner liner; a plurality of vanes that separate a cylindrical space between the burner liner and the burner casing into a plurality of premixers arranged side by side in a circumferential direction; a plurality of premixed fuel nozzles that inject a premixed fuel to the premixers; at least one thermometer installed to be buried in one of the vanes, and the like, and in a case in which a detection value of the thermometer exceeds a corresponding set value, an opening of each of premixed gas control valves is reduced and an opening of a diffusion gas control valve is increased in such a manner that a sum of flow rates of fuels supplied to the diffusion burner and the premixed burner remains unchanged.

A control apparatus for an AC-AC direct converter. The control apparatus includes a calculator providing a phase command θ* of an output voltage of the converter, a calculator providing a q-axis current iq by using output currents iu and iw and the phase command θ*, a detector detecting a pulsation component contained in the q-axis current iq, a calculator providing a phase correction magnitude θcmp so as to decrease the pulsation component, and an adder / subtractor correcting the phase command θ* by using the correction magnitude θcmp. This apparatus can decrease the output voltage distortion and low frequency torque pulsation and can suppress the increase of an output current without weakening a magnetic flux, even when the converter is operated in an overmodulation region.

The overcurrent limiting circuit includes: a limit voltage generation circuit generating a limit voltage which defines the limit current value as a current corresponding to a magnitude of a power supply voltage; a source follower having an output terminal and an input terminal which is connected to a gate of the output stage transistor, and configured to supply from the output terminal a voltage level-shifted from a voltage provided to the input terminal; an error amplifier circuit amplifying a difference between the limit voltage and the voltage supplied from the source follower; and a gate voltage adjustment transistor having a gate to which the voltage supplied from the error amplifier circuit is applied, and controlling a gate voltage applied to the gate of the output stage transistor.

An electronic circuit has a voltage selection and output circuit, e.g. digital-to-analog converter (DAC), and a switched capacitor filter (SCF), in which operational conditions of the input side switches of the SCF are incorporated in the selection conditions for selecting respective multiple selection switches of the voltage selection and output circuit. This arrangement permits the selection switches to serve as the input side switches, thereby reducing in number serial switches such as MOS transistors in the circuit, and hence reducing the on-resistances of the serial switches, while preventing the clock feed-through thereof from increasing and suppressing output errors due to the linearity error of the buffer amplifier involved.