127results about How to "Adjustable output" patented technology

System and method for using predictive pulse modulation in display applications. A preferred embodiment comprises sampling a light output of a light source, computing a usage history of the light source, and processing the samples of the light output in combination with the usage history to characterize the light source. The characterization of the light source can be used in conjunction with a desired light output to determine a current pulse waveform to provide to the light source to have the light source produce the desired light output. The characterization of the light source can occur during normal use of the display system or during manufacture or setup and configuration of the display system.

An image display device capable of preventing screen burning or residual image phenomena is provided. The image display device includes a display which displays an image according to preset pixel output characteristics; a motion detection unit which detects motion of the displayed image; and an output controller which adjusts the pixel output characteristics of pixels corresponding to a still image if at least one portion of the image is determined to be a still image, based on the detection result of the motion detection unit. Therefore, screen burning or residual image phenomena can be effectively reduced.

A control system for a vehicle includes an ECU, a front wheel speed sensor, a rear wheel speed sensor, and an engine. The ECU detects an actual slip speed and an actual slip ratio of a rear wheel on the basis of respective detected values of a front wheel speed sensor and a rear wheel speed sensor. Slip speed traction control is started when the actual slip speed exceeds a threshold value of a slip speed when a vehicle is at a low speed, and slip ratio traction control is started when the actual slip ratio exceeds a threshold value of a slip ratio when it is at an intermediate or high speed. An output of the engine is adjusted depending on the actual slip speed in the slip speed traction control, while being adjusted depending on the actual slip ratio in the slip ratio traction control.

A transfer function generator provides the ability to provide a non-linear response in a feedback loop to compensate for non-linearities introduced elsewhere in the system. The transfer function generator includes a non-linear function generator configured to provide an output current that is a non-linear function of an input signal representing an error to be corrected. The transfer function generator can also include a linear function generator configure to provide a linear output current as a function of an input current representing the error corrected. Tuning devices can be provided to adjust the turn-on level of the non-linear function generator and the output level of the linear function generator to allow the transfer function generator flexibility in implementation.

A high frequency power source configured to provide a variable voltage output is described such as for use in welding systems. The high frequency power source charges a capacitive storage device. A transformer having a primary winding coupled to the output of the high frequency power source and establishing a resonant frequency signal with the capacitive storage device, and a secondary winding coupled to the welding power supply, superimposes the resonant frequency signals onto the welding power signal of the welding power supply during periods of the resonant rings. By varying the voltage output from the high frequency power source, the high frequency energy delivered to the welding torch can be optimized for a variety of welding applications.

A motor control apparatus applying a sinusoidal drive waveform to a motor and including a position detection unit outputting a signal according to a motor shaft's position; and a control unit: acquiring a phase value of the motor's drive waveform when a signal is output by the position detection unit, changing a cycle of the drive waveform by measuring time from a previously output signal to a presently output signal, comparing the phases of the drive waveform and the motor shaft, and controlling to change to a cycle at which a phase value of the drive waveform matches a target phase value when a travel time corresponding to a phase value for adjustment has elapsed from a present time when a phase value of the drive waveform presently acquired differs from a target phase value acquired when the motor's drive current and drive voltage are in a designated phase relationship.

A network device and a computer program element are introduced for controlling data packet flows in a network device by manipulating data packets according to an actual manipulation rate. Amongst data packets received by a network device such as a router, data packets are identified that are marked with a pattern according to a congestion notification scheme. A pattern rate of data packets comprising such a pattern is determined, and the actual manipulation rate is determined subject to the pattern rate.

A proof printing system and method comprises a printer and supporting firmware for the printer, the printer comprising spectrophotometer integrated with the printer, which printer may be a commercial printer. The supporting firmware comprises color adjustment tables an / or algorithms. The system is capable of color confirmation and color calibration. The proof printing system is capable of adjusting the output signal of the spectrophotometer to compensate for conditions at the time of printing or conditions at the time of spectrophotometric measurement. The system is also capable of predicting the time it takes a color patch to reach a predetermined degree of drying that will allow reliable spectrophotometric measurements to be made. Measurement and printing conditions compensated for include at least drying of the ink, based on the determination of at least one of humidity and temperature. Measurement conditions additionally compensated for include the use of different colors of backing behind the proof and the presence or absence of an ultraviolet cutoff filter. The proof printing system can also adjust the output signal of the spectrophotometer based on a reference color standard.

The invention discloses a double wavelength multi-channel laser acupuncture and moxibustion instrument. The double wavelength multi-channel laser acupuncture and moxibustion instrument comprises a control system, a driving power source, a semiconductor laser module, an optical fiber coupler, optical fiber channels, an optical fiber fixing head and upper computer software. The semiconductor laser module comprises a plurality of sets of laser devices with the wavelength being 808 nm and 635 nm respectively. One laser device with the wavelength being 635 nm and one laser device with the wavelength being 808 nm form a set. Two kinds of lasers different in wavelength are coupled into one butt-joint optical fiber, output of one channel is obtained, and the optical fiber channels are used for adjusting and fixing optical fiber through adjustable metal arms so that the effective work distance and the work angle of the optical fiber can be freely controlled and adjusted. A total control chip is adopted for the control system to control the driving power source. The upper computer software is in data transmission with a control module though an RS232 serial port, and current, power and temperature are controlled and displayed. The optical fiber is fixed to an irradiated object through the optical fiber fixing head. By means of the double wavelength multi-channel laser acupuncture and moxibustion instrument, laser acupuncture and moxibustion with different parameters can be performed on various portions at the same time.

A multilayered gas sensing element includes a solid electrolytic substrate. A measured gas side electrode and a reference electrode are provided on surfaces of the solid electrolytic substrate. The measured gas side electrode is provided in a measured gas chamber. An introducing hole forming layer has an introducing hole for introducing a measured gas from an ambient atmosphere into the measured gas chamber and also providing a diffusion resistance to the measured gas introduced into the measured gas chamber. In manufacturing this gas sensing element, the introducing hole is formed by performing laser irradiation applied to the introducing hole forming layer.

In order to compensate for variation in output of sensor elements 10, there is provided a compensating resistor 220 that has a resistance value reflected by correction information. The resistor 220 is connected in parallel with a VS cell 245 through paired electrode leads 236 and 237 and paired electrode pads 232 and 233. The paired electrode leads 236 and 237 are placed at a position electrically isolated from solid electrolyte substrates 120 and 140.

The flow amount measuring apparatus has two detecting portions for generating signal indicative of flow amount respectively. The outputs of two detecting portions are subject to a differential amplification to obtain large output signal and low amplitude ratio. A plurality of resistors providing the detecting portion may be formed on a single substrate. The output characteristic of the flow amount measuring apparatus can be adjusted by adjusting the gain and the offset. The offset includes a temperature dependent first offset component and a constant second offset component. The first offset component varies in accordance with temperature of fluid so as to reduce temperature dependency of the output characteristic. As a result, it is possible to measure flow amount accurately.

The invention relates to the integrated circuit technique and discloses a low-voltage bandgap-free reference voltage source. According to the technical scheme, the low-voltage bandgap-free reference voltage source comprises a starting circuit composed of a CMOS transistor circuit, a first current generating circuit, a second current generating circuit, a third current generating circuit and an overlaying output circuit, wherein the starting circuit is used for providing a starting bias voltage for the whole circuit, the first current generating circuit is used for generating a current IPTAT in direct proportion to the temperature, the second current generating circuit is used for generating a current IPTOD in direct proportion to an overdriving voltage, the third current generating circuit is used for generating a current IPTTV in direct proportion to a threshold voltage, the current IPTTV is inversely proportional to the temperature, and the overlaying output circuit is used for overlaying of the current IPTAT and the current IPTTV and outputting a reference voltage VREF. The low-voltage bandgap-free reference voltage source has the advantages that the working voltage is low, the output voltage can be adjusted, influence of a technique on the low-voltage bandgap-free reference voltage source is little, and the area of a chip is small.

The invention relates to a portable wide-limit high-stability constant current source. The portable wide-limit high-stability constant current source structurally comprises an ARM single-chip microcomputer system, a touch screen module, a boosting module, a negative feedback amplifying module, a DA control module, a constant current source adjusting module, a current compensation module, a temperature measuring and keeping module, a sampling resistor module, a detecting module, a constant current source power supplying module, a power source module and other parts. The portable wide-limit high-stability constant current source can output high-precision voltage reference of any voltage value from 0 V to 10 V, the relative standard deviation of output voltage within a short time can reach 2.34*10<-7>, and the voltage stability is 3.4*10<-8>. The constant current source overcomes the defects that in a traditional constant current source adjusting tube voltage drop control circuit, a grade-distribution transformer needs to be manufactured specially, sudden current change before and after switching is caused by uneven voltage grade distribution, a motor control circuit and a voltage regulator machinery speed reducing device are complex and huge, and after a switching power source is introduced, current stability and ripple waves are disturbed greatly.

The invention discloses a waste incineration flue gas waste heat recovery device which comprises a ceramic heat exchanger and a waste heat boiler. The ceramic heat exchanger is provided with an air inlet and an air outlet. A ceramic heat exchange pipe is arranged between the air inlet and the air outlet. The air inlet is connected with an outlet flue of a garbage incineration boiler. Flue gas of the garbage incineration boiler after cooling is discharged by the air outlet. A pipeline is connected with the ceramic heat exchanger, the waste heat boiler and an air circulation fan. Clean air is filled in the pipeline. The air circulation fan drives the air to flow between the ceramic heat exchanger and the waste heat boiler in a circulating mode. The waste incineration flue gas waste heat recovery device is resistant to HC1 corrosion, highly-corrosive HC1 in the flue gas has no effect on operation of the ceramic heat exchanger basically, and the ceramic heat exchanger can operate stably for a long time. Moreover, the waste heat boiler is small in size and little in maintenance workload, and the amount of system heat exchange is convenient to control.

An adapter device for use in a combat training system communicates between an anti-personnel training device and a user monitoring device in a training exercise. The anti-personnel training device may be a simulated improvised explosive device including a trigger and an output arranged to output a simulated attack, for example light and sound representative of an explosion, in response to activation of the trigger. The user monitoring device, for example existing training products, such as the Stressvest™ system, the IR Tactical system™, or the MILES™ system, is worn by a user and includes an input which receives a hit signal indicative of the user being hit and an indicator output arranged to indicate the user has been hit. The adapter device has an input sensor to sense the simulated attack of the anti-personnel training device and a signal output to output a hit signal detectable by the user monitoring device.

The invention discloses an offshore wind turbine comprising an impressed current cathode anticorrosion protection and monitoring device. The device comprises a steel structure foundation, wherein a column foot platform is arranged on the steel structure foundation; a tower is fixed on the column foot platform; a wind power main machine is arranged at the upper end of the tower; the steel structure foundation is connected with the impressed current anticorrosion protection and monitoring device; the impressed current anticorrosion protection and monitoring device comprises a monitor arranged on the column foot platform, a controllable direct current power supply, a potential measuring instrument, an auxiliary anode and a reference electrode, wherein the auxiliary anode and the reference electrode are fixed on the steel structure foundation; an anode shielding layer with a physical barrier function covers the surface of the auxiliary anode; the negative electrode of the controllable direct current power supply is connected with the steel structure foundation; the positive electrode is connected with the auxiliary anode; and the auxiliary anode is electrically connected with the steel structure foundation through a seawater medium after the circuit is communicated so as to form a closed loop. The invention aims to provide the offshore wind turbine which is provided with the impressed current cathode anticorrosion protection and monitoring device, has an electrochemical anticorrosion protection function and is convenient for implementation and maintenance.

The invention provides a tension damper. A balance bar is rotatably mounted on a balance base. An angle sensor used for detecting the rotation angle of the balance bar is arranged on the balance base.With the rotation axis of the balance base as a boundary, a damper body is arranged at one end of the balance bar and is used for providing advancing resistance for a wire or strip; and a sliding block device is arranged at the other end of the balance bar, and the position of the sliding block device can be adjusted along the balance bar. According to the tension damper, the tension applied to the wire or strip can be accurately adjusted through the structure of the balance bar, and thus, the tension damper can be applied to a wire or strip production line with a high precision requirement;and the resistance of the wire or strip can be controlled to keep the advancing speed of the wire or strip constant while the tension is controlled, the tension borne by the wire or strip is kept constant, and thus, the production quality of high-precision wires or strips is improved.

An acceleration shock reduction control system for a vehicle which can reduce a shock at a transition to an accelerating state without deteriorating an acceleration response. An acceleration shock reduction control system for vehicle includes a control unit which determines a transition from a decelerating state to an accelerating state, and which thus controls the ignition of an internal combustion engine to adjust the output of the engine. In the acceleration shock reduction control system, upon detecting the transition from the decelerating state to the accelerating state, the control unit gives an instruction for an ignition cut which is executed over a predetermined time period Tr after a predetermined waiting time period Tw elapses.

A universal and output-adjustable thermistor linear compensation circuit based on an audion comprises a sensing adjustment module, a voltage constant module, a feedback amplification module, a linear compensation circuit and an output amplification module, wherein an output end of the sensing adjustment module is connected with the input end of the feedback amplification module, the output end of the feedback amplification module is connected with the input end of the output amplification module, the output end of the output amplification module is connected with a port 1 of the linear compensation module, an output port 2 of the linear compensation module is connected with the input end of the feedback amplification module, and the input end of the linear compensation module is connected with the output end of the voltage constant module. The universal and output-adjustable thermistor linear compensation circuit based on the audion has the advantages that the linear effect of the circuit is good, the circuit is simple in structure, the conversion flexibility of the circuit is high, and large-scale production is facilitated.

A voltage regulator may include a resistor-based voltage divider circuit generating a desired output voltage from a supply voltage, an output NMOS device whose source terminal may be configured as the output of the voltage regulator and whose drain terminal may be configured to receive the supply voltage, and a control circuit configured to control the output NMOS device to maintain the desired output voltage at the output of the voltage regulator. The control circuit may be configured to receive the desired output voltage from the voltage divider circuit as a first input, and to receive the output of the voltage regulator fed back as a second input to form a feedback loop. The control circuit may control the gate of the output NMOS device via the feedback loop to adjust the output of the voltage regulator by maintaining the desired output voltage at the source of the output NMOS device, and may also clamp the output of the voltage regulator to a specified voltage that is lower than the supply voltage, without requiring a second feedback loop.

The invention relates to an adjustable quantitative injection pump. A speed reduction motor is arranged on a pump body. A rotating block is fixed on an output shaft of the speed reduction motor. An adjusting screw rod vertical to the output shaft of the speed reduction motor is arranged on the rotating block. A sliding block drive pin is arranged on the adjusting screw rod. The axis of the sliding block drive pin is deviated from the axis of the output shaft of the speed reduction motor. The sliding block drive pin is matched in a transverse groove of a sliding block in a sliding mode. The sliding block is matched on a vertical sliding block guide rod in a sliding mode. A vertical drive rod is fixed on the sliding block. The drive rod is connected with a push rod of a syringe through a linkage block. According to the invention, a transmission mechanism of the syringe is formed by the speed reduction motor, the rotating block, the sliding block drive pin, the sliding block and the drive rod and drives the push rod of the syringe to take the piston motion, wherein the sliding block drive pin is arranged on the adjusting screw rod and the eccentricity of the sliding block drive pin relative to the output shaft of the speed reduction motor can be regulated, so that the output of the syringe is regulated. The adjustable quantitative injection pump has simple structure and low cost, is stably and reliable to operate and is simple and convenient to control.

A light assembly contains a housing. One or more LED light units are contained within the housing, wherein each of the LED light units may contain only one corresponding conductive end cap. A pair of conductors extending from each of the corresponding conductive end caps are mated with a corresponding socket contained within a DC power supply module contained within the housing.

The invention relates to an intelligent bait casting machine. The intelligent bait casting machine comprises a shell body, a bait chamber formed in the shell body, a bait guiding mechanism comprising a bait guiding motor and a bait guiding screw, a bait casting mechanism comprising a bait casting motor and a bait casting plate, a control system comprising terminal power supplies, controllers, Lora nodes, at least one Lora gateway, a cloud end and a client end, wherein a feeding door is formed in a top panel, and a first discharging port is formed in the bottom of the shell body; the bait casting plate is horizontally arranged at the bottom of the shell body and located below the first discharging port, several bait throwing baffles are uniformly arranged on the bait casting plate, and the bait casting motor is fixed to the upper surface of a bottom plate of the shell body and is in driving connection with the bait casting plate; according to the intelligent bait casting machine, by improving the structure of the bait casting machine and adopting the technology of the Internet of Things, through combination of private cloud services and a low-power-consumption Lora local area network, the bait casting operation of the bait casting machine can be remotely controlled, and the workload of breeding workers is effectively reduced.

The invention discloses a unit cascaded type frequency converter based on a DSP (digital signal processor) and an FPGA (field programmable gate array). The unit cascaded type frequency converter based on the DSP and the FPGA comprises a main circuit, the DSP and the FPGA, wherein the DSP is used to receive input frequency from a keyboard and calculate a modulation degree, and furthermore sends modulated wave frequency and a voltage modulation degree to the FPGA through a special SPI (serial peripheral interface), the FPGA is used to generate an SPWM (sinusoidal pulse width modulation) signal according to the modulated wave frequency and the voltage modulation degree, which are input, so as to control connection and disconnection of a power pipe in the main circuit, the main circuit comprises a phase shifting transformer and n power modules which are cascaded, and n is an integer, and larger than or equal to 3. The unit cascaded type frequency converter based on the DSP and the FPGA can flexibly adjust carrier frequency, the modulating wave frequency and the modulation degree, is rapid in respond, and can effectively guarantee speed regulation performance of the unit cascaded type frequency converter based on the DSP and the FPGA.

Provided is a sound reproduction device that can accurately adjust a warning sound output from a loudspeaker. The sound reproduction device includes a loudspeaker unit including a loudspeaker and an identifier that identifies a characteristic of the loudspeaker and an amplifier unit that amplifies a signal corresponding to a sound output from the loudspeaker. The amplifier unit includes an amplifier that amplifies the signal input from a sound source and outputs the amplified signal to the loudspeaker, a determination unit, and an amplification degree adjuster. When the loudspeaker unit and the amplifier unit are connected to each other, the determination unit determines the characteristic of the loudspeaker from the identifier of the connected loudspeaker unit. The amplification degree adjuster adjusts the amplification degree of the signal output from the amplifier according to the characteristic of the loudspeaker determined by the determination unit.