39results about How to "Guaranteed output stability" patented technology

A flexible stretchable single-electrode triboelectric nanogenerator and a manufacturing method thereof belong to the field of nanometer new energy. The pleated triboelectric nanogenerator is composedof three parts including a nanofiber friction material layer, a flexible electrode layer and an elastomer support layer which are sequentially stacked. The electrospinning technique is used to cover the nanofiber layer on a pre-stretched substrate on which flexible electrodes are deposited. By releasing the pre-tensile stress and a short heat treatment process, the pleated triboelectric nanogenerator having a stable output can be prepared. The nano-generator involves a simple operation process, and the prepared nano-generator has excellent tensile properties, and provides more options for human wearable self-powered devices.

The invention discloses an adaptive electric leakage compensation circuit for an LDO (low dropout regulator). The grid electrode of the power supply PMOS transistor MPP of the LDO is connected with the output of an error amplifier EA. The circuit is characterized in that the circuit is connected between the source electrode and drain electrode of the MPP; a sampling PMOS transistor MPS and a pairof NMOS transistors are connected so as to form the circuit; the grid electrode of the MPS and the common source electrode of the MPP and the MPS are connected with input VIN; the common drain electrode of the MPP and the MN2 is output VOUT; the common drain electrode of the MPS and the MN1 is connected with the common grid electrode of the MN1 and the MN2; the common-source of the two NMOS transistors is grounded; the size ratio of the MPS to MPP is 1:K1; the size ratio of the MN1 to MN2 is 1:K2; and K2 is greater than K1. The adaptive compensation circuit is simple in structure and practical; generated leakage current is tracked adaptively through the sampling PMOS transistor; the leakage current is completely pulled out through the two connected NMOS transistors; the output stability ofthe LDO in a temperature conversion environment can be guaranteed; and no quiescent current is generated in the circuit at the normal temperature, so that the optimization of design parameters is facilitated.

The invention relates to a leakage current compensation circuit and method applied to a low-power-consumption LDO. When the LDO works under the conditions of high temperature, large input voltage and extremely low load current, the leakage current compensation circuit is opened, and when the LDO is in a typical circuit working state, the leakage current compensation circuit stops working. A leakage current supply source is used for proportionally monitoring and following the leakage current of a power tube in real time, a switch control circuit is used for monitoring the working state of the circuit in real time, and when the circuit works at high temperature, large input voltage and extremely low load current, a leakage current supply tube is turned on. The leakage current supply tube is used for providing leakage current for the LDO, so that the load current of the LDO can still keep correct output when the magnitude order of the load current is close to the magnitude order of the leakage current of a power transistor.

The invention discloses a touch scanning circuit, a driving method thereof, a touch driving circuit and a touch display screen. The touch scanning circuit comprises an input unit, a first control unit, a second control unit, a displacement output unit and a touch output unit; wherein the input unit is used for controlling the potential of a first node; the first control unit is used for controlling on and off between the first node and a third node; the second control unit is used for controlling the potential of a second node; the displacement output unit is used for controlling the potentialof a displacement output end according to the third node and the second node; the control output unit is used for controlling signals output by a touch output end according to the second node, the touch output end and a first clock signal end. The touch scanning circuit in a simple structure is realized by the aid of the matching of the five units.

This invention relates to a two-way 4-20mA DC analog volume output device based on FPGA control different from the circuit controlling single DAC chips with the SPI interface of a master CPU, which can simulate two-way SPI communication line by the IO interface of FPGA and converts parallel digital information given by the master CPU to a serial digital flow required by the DAC and outputs it to realize DC analog volume output of 4-20mA, and the device is composed of a high speed optical isolator, a D / A converter, an operational amplifier and a voltage primary source, in which, the high speed optical isolator, the D / A converter and the operational amplifier are serial in sequence, the voltage primary source is connected with the converter and the amplifier, the input of the isolator is the input of the device and the output of the amplifier is the output of the device.

The invention discloses an automobile electronic water pump controller with multiple interfaces and relates to an electronic water pump for an automobile. The automobile electronic water pump controller comprises an embedded microprocessor, a motor driver and a parameter detection circuit, wherein the embedded microprocessor is connected with an electric control unit (ECU) or bus of the automobile through a communication interface module and is used for receiving a rotating speed control signal transmitted from the ECU; the communication interface is one of pulse width modulation (PWM), LIN and controller area network (CAN); the input end of the motor driver is connected with the embedded microprocessor, and the output end of the motor driver is connected with the motor; the motor driver is used for driving the motor to work under control of the embedded microprocessor; the parameter detection circuit comprises at least one detection circuit for voltage, current, temperature and rotating speed signal; the signal output end of the parameter detection circuit is connected with the embedded microprocessor; and the parameter detection circuit is used for acquiring working parameters of the motor. The automobile electronic water pump controller is high in universality, the fault diagnosis requirements of the automobile electronic water pump can be met, and the reliability of an automobile cooling system is improved.

The invention discloses a charge pump, a control method and a chip. The charge pump comprises a first power module, wherein the first end of the first power module is connected with a preset power supply, the second end of the first power module serves as a voltage output end and is controlled by a first signal; a second power module, wherein the first end of the second power module is connected with the voltage output end, the second end of the second power module is grounded, and the second power module is controlled by a second signal; a capacitor module which is in parallel connection withthe second power module; a locking judgment module and a state switch. The capacitor module comprises a first capacitor unit and a second capacitor unit which are connected in series, and the state switch is in parallel connection with the second capacitor unit. The locking judgment module outputs a judgment signal for controlling the state switch according to the first signal and the second signal. When it is judged that the signal controls the state switch to be switched off, the first capacitor unit and the second capacitor unit which are connected in series are connected into a current loop, the equivalent capacitance is smaller, and the voltage of the voltage output end changes fast; when the judgment signal controls the state switch to be switched on, only the first capacitor unit is connected into the current loop, and meanwhile, the output stability of the voltage of the voltage output end is guaranteed.

The invention discloses a tab positioning method, a tab processing system and a storage medium, and the method comprises the steps: obtaining a path distance L of a tab conveyed from a tab processing position to an observation position, calculating a difference value between the L and a preset tab distance Sn, and obtaining a target distance; and when the previous tab passes through the observation position, the previous tab is continuously conveyed by a target distance S, and at the moment, the position, corresponding to the tab processing position, on the pole piece is the position of the target tab. When the position of the target tab is determined, the target pulse signal is obtained according to the target distance S instead of the preset tab distance Sn, and the target distance S is far smaller than the preset tab distance Sn, so that the number of the target pulse signal is small, and the position of the target tab is determined. And the probability of slipping, pulse loss, jumping instability and the like in the execution process of a few pulse signals is low, so that the tab positioning precision is improved, a guarantee is provided for subsequent tab welding or cutting, and the final product quality is improved.

The invention relates to a four-stator-rotor series connection ultrasonic motor which comprises a middle stator base, the middle stator base is coaxially arranged on a shell, a bearing is arranged in an inner cylindrical hole of the middle stator base, and a stator elastomer assembly is coaxially arranged on the end face of an inner side boss; the output shaft penetrates through a bearing on the middle stator seat and is fixed on an inner ring of the bearing by using a locking nut; two flexible rotor assemblies are coaxially arranged on the two end faces of a flange plate in the middle of the output shaft respectively, the two flexible rotor assemblies at each end are installed in a back-to-back mode, and adjusting gaskets are arranged between the flexible rotor assemblies and between the flexible rotor assemblies and the flange end faces of the output shaft. Stator elastomer assemblies are coaxially arranged on the surfaces of bosses on the inner sides of stator bases coaxially installed at the two ends of the shell. A PCB, a PCB cover shell and a cable fixing sleeve are arranged on the plane of one side of the shell, a flexible printed board on the stator elastomer assembly is welded to the PCB, and a wire is led from the PCB. The motor has the characteristics of high output torque, high power, compact structure and the like.

The invention relates to a thin film solar cell and a manufacturing method of the thin film solar cell. The thin film solar cell at least comprises a thin film solar cell panel and a degradable film, wherein the degradable film covers at least a part of the light receiving face of the thin film solar cell panel, and the degradable film is used for lowering the average light transmission rate of the thin film solar cell. The manufacturing method of the thin film solar cell includes the steps of providing the thin film solar cell panel, and forming the degradable film on at least a part of the light receiving face of the thin film solar cell panel. According to the thin film solar cell and the manufacturing method of the thin film solar cell, the use safety performance and the use efficiency of the thin film solar cell can be ensured, the problem that the excessive design is habitually required to deal with light recession can be solved, and therefore the cost is reduced.

The invention discloses a contact-type image sensor. The contact-type image sensor is provided with a preset scanning surface corresponding to a to-be-scanned surface of a manuscript. The contact-typeimage sensor comprises a time sequence generation circuit which is used for generating a light source control signal LRDT and a line scanning control signal TRIG1; a light source which is used for irradiating the manuscript; a lens which is used for collecting the reflected light emitted by the light source and reflected by the manuscript and emitting the reflected light to a photoelectric conversion chip; the photoelectric conversion chip which is used for converting the received optical signal into an electric signal; and a data processing unit which is used for receiving and processing theelectric signal output by the photoelectric conversion chip according to a trigger pulse TRIG sent by an encoder for transmitting an object to be detected. The photosensitive signals output by the photoelectric conversion chip are the same, so that the output stability, the dynamic range and the sensitivity of the image sensor are guaranteed.

The invention discloses an angular position sensor based on a photoelectric detector. The sensor comprises four fan-shaped photoelectric detectors which are symmetrical around the center of the same axis and are used for receiving illumination and generating induction current; an LD laser diode which is positioned on the axes of the four fan-shaped photoelectric detectors and is used for emittinglaser to the light receiving surfaces of the fan-shaped photoelectric detectors; a temperature sensor which is used for measuring the temperature of the fan-shaped photoelectric detector; two anti-dazzling screens which are coaxially arranged with the four fan-shaped photoelectric detectors and are used for shielding the light receiving surfaces of the fan-shaped photoelectric detectors; a currentcalculation module which is used for calculating the difference value of the two output induction current values; a temperature compensation module which is used for carrying out temperature compensation on the output value of the fan-shaped photoelectric detector; and an angle position calculation module which is used for calculating the angle position of a to-be-measured rotating shaft according to the compensated induction current difference value. Defects in the prior art can be overcome, and repeated manual calibration is not needed.

The invention discloses a roasting furnace for manufacturing biomass energy. The roasting furnace comprises a powdery material input connection pipe, an air preheating chamber, a powdery catalyst input connection pipe, a primary treatment chamber, a high-temperature reaction bin, a heat recovery chamber, an air exhaust pipeline, an air exhaust port, a solid-gas separation chimney, a chimney base,a biomass energy powder recovery pipe and a base, wherein the left portion of the air preheating chamber is provided with the powdery material input connection pipe, the powdery material input connection pipe is fixedly connected with the air preheating chamber through a bolt, the left end of the powdery material input connection pipe is connected with material conveying equipment, and the right side of the air preheating chamber is provided with the primary treatment chamber. The roasting furnace for manufacturing the biomass energy has the advantages that the mixing effect is improved, the stability and reliability of the output temperature can be effectively ensured, the subsequent treatment effect is effectively improved, the problem of the explosion caused by the use of the air for production is solved, and the safety and reliability of the work of the roasting furnace are improved.

The dual-channel 4-20mA DC analog output device is a dual-channel 4-20mA DC analog output device based on FPGA control, which is different from the circuit that controls the single-chip DAC chip through the main CPU through the SPI port. This circuit can simulate a dual-channel SPI communication line through the IO port of the FPGA, convert the parallel digital information given by the main CPU into the serial digital stream output required by the DAC, and realize the 4-20mA DC analog output. The device is composed of a high-speed optical isolator (1), a digital / analog converter (2), an operational amplifier (3), and a voltage reference source (4); among them, the high-speed optical isolator (1), the digital / analog converter ( 2), the operational amplifier (3) is sequentially connected in series, the voltage reference source (4) is connected with the digital / analog converter (2) and the operational amplifier (3) respectively, and the input end of the high-speed optical isolator (1) is the The input terminal and the output terminal of the operational amplifier (3) are the output terminals of the device.

The invention relates to civil engineering equipment, in particular to uniform tensioning and laying equipment for a large-gradient long-distance slope geocell. The technical problems that an existing geocell laying device is large in structure and is only suitable for construction of a slope protection with the small gradient and the short length due to the influence of the structure, a geocell pulled into a net shape cannot be fixed in time, manual fixing is needed, the steps are complex, and the construction progress is slow are solved. According to the technical scheme, the uniform tensioning and laying equipment for the large-gradient long-distance slope geocell comprises a first cart, a second cart, a power system and the like; a power system is connected between the first cart and the second cart; the power system is used for laying the geocell to be laid from top to bottom. By adjusting the angle of the power assembly, the power system can adapt to different slope protection angles, then the power output stability of the power assembly is kept, and the to-be-laid geocell can be laid on the long-distance slope protection by adjusting the power assembly.

The invention provides a separation waveband background light simulator used for detecting laser radar performance. The separation waveband background light simulator comprises a control module, a background light feature database, an adjustable constant-current source driving circuit, a light source module, an illumination optical system, a sampling feedback circuit, an illuminance sensor and a feedback control circuit. The introduced illumination optical system comprises a spotlight cover, an optical integer, an aligning lens and a light outlet, and light focusing, light homogenizing and aligning can be realized, so that the system can accurately simulate sunlight illuminance of a plurality of wavebands, and simulate the alignment property and illuminance uniformity of the sunlight well;and the introduced background light feature database can simulate the background light interference at specific wavelengths under different atmospheres. The separation waveband background light simulator is suitable to be taken as a background light interferer for use in indoor detection of the laser radar performance room in detection, and has the excellent advantages of definite principle, simple structure and stable work.

The invention discloses a performance calculation method of a thermodynamic system. The method comprises the following steps: receiving monitoring data, control system frequency information and target parameter information; determining sampling duration information according to the control system frequency information; determining fluctuation period information corresponding to the target parameter information according to the sampling duration information, the monitoring data and the target parameter information, wherein the duration corresponding to the sliding average value information is integral multiples of the duration corresponding to the fluctuation period information; determining moving average value information according to the fluctuation period information; and calculating the performance of the thermodynamic system according to the moving average value information. According to the method, device and equipement, the actual parameter fluctuation problem of the thermodynamic system can be suppressed, so that the fluctuation of a performance calculation result is effectively suppressed, and the output stability is ensured. The invention further provides a performance calculation device and equipment of the thermodynamic system and a computer readable storage medium.

The invention discloses an electric energy meter, comprising a microprocessor, a storage module, an electric energy metering module, an infrared and carrier wave communication module and a power module, wherein the microprocessor is connected with the storage module, the electric energy metering module and the infrared and carrier wave communication module respectively; the power module is connected with the microprocessor, the storage module, the electric energy metering module and the infrared and carrier wave communication module; and the power module is a low power consumption DC / DC (Direct Current / Direct Current) power module. The electric energy meter is lower in power consumption.

The invention discloses a fuel distributor, which comprises a fuel distributor body. The invention has the main key that the fuel distributor also comprises a pressure release valve for eliminating residual gas in a cavity of the fuel distributor body. According to the fuel distributor disclosed by the invention, the pressure release valve is additionally arranged on the fuel distributor, thus, bubbles mixed in the fuel distributor are reduced under the action of the pressure release valve, the uniform distribution effect of fuel is enhanced, and the oil injection amount is ensured to be sufficient, thereby, the output stability of engine power is guaranteed.

The invention discloses an output control method for a robot and a robot. The method comprises: first multi-modal data are outputted; during the outputting of the first multi-modal data, a user input is received; when the user input includes a request of outputting second multi-modal data, whether the first multi-modal data and the second multi-modal data can be outputted in parallel is determined; if not, the output of the first multi-modal data is interrupted and the output of the second multi-modal data is carried out. With the method, phenomena of an output conflict and data accumulation and blocking because of continuous receiving of output requests of a plurality of multi-modal data by a robot can be avoided; the output stability of the robot during the interaction process can be guaranteed effectively; the interactive output error is prevented; and thus the user experience is improved substantially.

The invention provides an output device of gilling equipment, and belongs to the technical field of textile machinery. The output device comprises an output guide frame, an output guide wheel, an output collecting tube, and a strip-collecting assembly, wherein convergence rolling rings are arranged on the two sides of the output guide frame; the output guide wheel can be rotationally arranged on an output guide wheel support; the output collecting tube is arranged on an output collecting tube support; a strip-collecting roller support of the strip-collecting assembly can be arranged in a strip-collecting roller support sliding groove of the strip-collecting roller support in a sliding mode left and right; a strip-collecting bearing end cover is in threaded connection with the right side ofthe strip-collecting roller support sliding groove; the strip-collecting roller is rotationally arranged on the strip-collecting roller support; a strip-collecting yarn tube is coaxially mounted on the strip-collecting roller; a strip-collecting driving roller is rotationally arranged on the strip-collecting bearing base; a strip-collecting driving ring is coaxially mounted on the strip-collecting driving roller; and a strip-collecting yarn tube is fitted with the strip-collecting driving ring under the effect of a strip-collecting bearing compression spring. According to the output device, the output stability of the wool collecting strips is high, and replacement of the strip-collecting yarn tube is convenient.

The present invention provides an emission control driver and a display device thereof. The emission control driver comprises a plurality of emission stages, wherein the emission stages sequentially output emission control signals through emission control lines; and each of the emission stages includes a first signal processor, a second signal processor and a third signal processor, wherein the first signal processor receives a first voltage and outputs first signals and second signals in response to first control signals, second control signals and third control signals, the second signal processor receives the first voltage and outputs third signals in response to the third control signals, the first signals, and the second signals, and the third signal processor receives the first voltage and the second voltage, and outputs emission control signals in response to the third control signals, the second signals, and the third signals. According to the emission control driver and the display device thereof of the present invention, the three signal processors are adopted to receive the first voltage and the second voltage and output the emission control signals in response to the first control signals, the second control signals, and the third control signals, and therefore, the structure of the emission control driver is simplified.

The invention relates to a bipedal clamping type high bearing precise linear driver, and aims to solve the problems of low driving force, weak load bearing capacity, low output precision and the likeof the existing piezoelectric linear driver. The bipedal clamping type high bearing precise linear driver is composed of a sliding upper plate, a sliding upper plate installation bolt, a packaging cover, a packaging cover fixing bolt, a linear driving stator, a guide rail assembly fixing bolt, a base assembly, a linear driving stator fixing bolt and a guide rail assembly. The large output force ofthe driver is realized by the flexible hinge clamping mechanism, high load bearing is realized through the upper arrangement of the guide rail assembly and the lower arrangement of the linear drivingstator, the elastic beam is arranged on the linear rhombus hinge driving connecting beam, the pre-tightening force of the driver is fine-adjusted by adjusting the loading screw of the guide rail andthe extrusion force of the elastic beam, and the stable output of the performance of the driver is ensured by the driving feet. The v has the advantages of simple structure, high resolution, high loadbearing capacity, stable performance, convenient pre-tightening adjustment and the like and has a wide application prospect in the field of micro-nano processing and manufacturing.

The invention provides an intelligent premature ejaculation rehabilitation apparatus and system, wherein the intelligent premature ejaculation rehabilitation apparatus comprises a power supply module,a signal receiving and sending module, a control module, a pulse output module and a plurality of electrode plates, wherein the plurality of electrode plates comprise a plurality of wireless electrode plates and / or a plurality of wired electrode plates; the signal receiving and sending module is used for receiving a pulse type control instruction input by external equipment and sending the pulsetype control instruction to the control module; when the plurality of electrode plates comprise the plurality of wired electrode plates, the control module is used for controlling the pulse output module to output corresponding pulse current into the wired electrode plate according to the pulse type control instruction sent by the signal receiving and sending module; when the plurality of electrode plates comprise the plurality of wireless electrode plates, the control module is used for obtaining a corresponding pulse current digital signal through processing according to the pulse type control instruction, and sending the pulse current digital signal to the wireless electrode plates through the signal receiving and sending module; and each electrode plate is used for being attached to the human body so as to transmit the pulse current to the human body for blocking or interfering the transmission of human neural signals.

The present invention relates to an apparatus for monitoring a gas laser. The present invention is connected to a gas laser generation chamber so as to be capable of receiving two types of gases fromthe gas laser generation chamber, and monitors components of the two types of gases accommodated in a reaction space of a gas laser emitting chamber, thereby enabling the insertion or generation of unnecessary substances in the gas laser generation chamber to be quickly identified and measurements responding thereto to be taken. Therefore, a technology capable of ensuring the stability of a laserbeam output is disclosed.

The invention discloses a switching tube turn-off compensation method and a related component, and relates to the field of power supplies, the compensation amount of a first preset voltage is obtained, after the compensation amount is obtained, a second preset voltage is obtained according to the compensation amount and the first preset voltage, and a processor performs advanced control based on the second preset voltage. When the acquired voltage of the sampling resistor reaches the second preset voltage, an instruction for controlling the switch tube to be switched off is sent to the switch tube, compensation of time delay existing when the processor controls the switch tube to be switched off is completed through the compensation amount of the voltage, and then advanced control is completed; therefore, the voltage of the sampling resistor is the first preset voltage when the switching tube is actually disconnected, the control accuracy of the switching tube is improved, the output stability of the primary side of the transformer is maintained, and the switching power supply system can provide stable output voltage for load equipment.