443 results about "Pulse control" patented technology

The utility model provides a high-voltage pulse generating device and a test system. The high-voltage pulse generating device comprises a main control unit, a driving circuit, a pulse control circuit with a wide bandgap semiconductor power device, and an output circuit, the first end of the main control unit is coupled with the first end of the driving circuit, the second end of the driving circuit is coupled with the first end of the pulse control circuit, and the second end of the pulse control circuit is coupled with the output circuit; the main control unit is configured to generate two paths of first PWM (Pulse Width Modulation) signals with dead time control; the two paths of first PWM signals are sent to the driving circuit; and the driving circuit is configured to process the first PWM signal and then drive the pulse control circuit, so that the output circuit generates a high-voltage pulse signal. According to the utility model, the structure is simple, the cost can be greatly reduced, the output pulse speed can be flexibly set, and the CMTI test requirements of different isolated gate drivers can be met.

The invention provides a wake flow redirection control method and system based on cabin type laser radar prediction, and relates to the technical field of laser radar remote sensing detection, and the method comprises the steps: obtaining first wake flow propagation path data of a target unit at different spatial positions and first wake flow speed data of different time points through a cabin type laser radar; performing correlation analysis on the first wake flow propagation path data, the first wake flow speed data and a preset unit wake flow speed attenuation coefficient to obtain a correlation analysis result; obtaining a wake flow prediction result based on the first wake flow propagation path data and the correlation analysis result; obtaining wake flow redirection control demand data based on a preset wake flow control target and the calibrated first wake flow speed data; converting the pulse parameter into a pulse control signal based on wake flow redirection control demand data; based on the pulse control signal, accurate redirection control over the wake flow of the wind turbine generator is achieved, cross interference of the wake flow is reduced, and the overall power generation efficiency of a wind power plant is improved.

The invention provides a pinned pulse safety synchronization control method and system of a multi-coupling time-delay network, and the method comprises the technical schemes: building a coupling time-delay dynamic network model, constructing a mathematical description of a random spoofing attack, designing a pinned pulse safety controller, and deducing a Lyapunov stability discriminant. Through defining an error system of a following network and a target network, under a pinned pulse safety control framework, based on a pulse system theory, system stability is analyzed, an attack probability is described in combination with a Bernoulli random variable, a pinned pulse control node selection strategy is finally designed, and safety synchronous control is successfully realized. The mechanism can effectively extract time delay information with a stabilization effect in a continuous system, and fuses the time delay information into the design of an anti-attack containment pulse safety controller, so that the synchronization safety of the system is remarkably improved, the resource allocation efficiency is optimized, and the attack influence is weakened by utilizing inherent time delay.

The invention discloses a high-side driving circuit applied to a gallium nitride fully-integrated half-bridge power chip, and belongs to the field of power integrated circuits. The circuit comprises an input stage circuit, an anti-VSW negative voltage shift circuit and a low-power-consumption output stage circuit. Wherein the anti-VSW negative voltage shift circuit guarantees correct transmission of a signal under a VSW node negative voltage condition through a negative voltage transmission structure, and in addition, the anti-VSW negative voltage shift circuit can generate an advanced pulse control signal for the low-power-consumption output stage circuit; and the low-power-consumption output stage circuit only charges the bootstrap capacitor in a short time before the output state is changed through the advanced pulse control signal, so that the problem of high power consumption of a capacitor charging branch in a traditional scheme is greatly relieved. According to the invention, the signal transmission reliability of the high-side driving circuit under the negative-voltage working condition is remarkably improved, the static power consumption is effectively reduced, and the high reliability and low power consumption requirements of the gallium nitride fully-integrated half-bridge driving chip on the high-side access are considered.

The invention relates to an anti-demagnetization bistable quick release for an elastic operation mechanism, which is characterized by comprising an anti-demagnetization double-magnet unit, an armature unit, a coil unit and a self-adaptive pulse control system, and is characterized in that the anti-demagnetization double-magnet unit comprises a main permanent magnet, an auxiliary permanent magnet, a magnetic conductive yoke and an iron core; the main permanent magnet, the auxiliary permanent magnet and the coil unit are all assembled and connected with the magnetic conductive yoke to form a magnetic circuit loop, and the main permanent magnet and the auxiliary permanent magnet are connected in parallel to play a role in demagnetization resistance. And the magnetic conductive yoke is provided with an air gap, and a magnetic field at the air gap is used for adsorbing the armature and realizing the tripping action. When the device is matched with the circuit breaker for use, the tripping speed, the operation stability and the opening action consistency of the circuit breaker can be improved.

Embodiments that provide advanced charging of energy source arrangements for energy storage applications are disclosed. The embodiments can be used within energy storage systems having a cascaded arrangement of converter modules. The embodiments can include the application of pulses to an energy source of each module of the system. The pulses can be applied for a duration sufficient to initiate an electrochemical reaction. Feedback based pulse control embodiments are also disclosed.

The invention discloses a waterproof crawling robot. The robot comprises a driving mechanism, a supporting and adjusting mechanism, a camera shooting detection assembly, a slapping communication mechanism, a coupling unit and a control unit. The driving mechanism adopts four-wheel independent driving and differential steering; the supporting adjusting mechanism is of a crossed supporting rod structure. The slapping communication mechanism is composed of an eccentric cam and a firing pin or an electromagnetic releaser and a leaf spring firing pin, and mechanical pulses are transmitted to the pipe wall through an elastic cushion or a thin film resonant cavity of the coupling unit. The control unit carries out coordinated proceeding, detection and communication, a mute time slot is formed before and after slapping, acoustic signals are collected, and communication and echo ranging are achieved. According to the scheme, the strong rhythm pulse is used as a synchronous reference of communication and positioning, self-noise interference is effectively suppressed, stable communication and centimeter-level positioning are achieved in metal, full water and complex pipe networks, and the task completion rate is remarkably increased.

The invention discloses an impedance-adjustable series hybrid cascade static synchronous compensator and a control method thereof. The method comprises the following steps: acquiring grid-connected point voltage and load current information, and performing positive and negative sequence component analysis on the grid-connected point voltage and load current information; calculating a compensation line current component with the same size and opposite phase as the positive and negative sequence components of the load current so as to compensate the reactive power and the negative sequence current of the grid-connected point load; zero-sequence injection current used for in-phase active power balance is calculated, and reference operation current of each cascade branch is obtained; calculating the output reactive power of each phase based on the cascade branch voltage of each phase and the reference operation current, calculating the corresponding trigger angle of each phase thyristor under the condition that the adjustable impedance bears all phase voltages and generates all reactive power, and generating a pulse control signal to realize the control of the adjustable impedance; and each phase cascade converter adopts quasi-proportional resonance control to track the reference operation current, and generates a corresponding PWM signal to respectively control each phase cascade converter.

Techniques are described herein for improving the burst operation of flyback power converters. The techniques provide a burst mode that delivers voltage pulses to a switching element with decreased power losses (e.g., greater switching efficiency). The efficiency of the power converter can be improved by capping the number of pulses to be delivered in a given burst packet and instituting a fixed delay to limit the power delivery. The pulses may be delivered during valleys of the signal at the switching terminal of the switching element to reduce switching losses. Additionally, a frequency clamp circuit is also provided to ensure the switching frequency is not above a predetermined threshold frequency. A device designed to implement the improved burst operation includes a burst control circuit, a pulse control circuit, a delay control circuit, and a latch.

The invention discloses a collaborative decision-making method and device based on SNN real-time perception and LLM high-order planning, and relates to the technical field of autonomous driving decision-making, and the method comprises the steps: obtaining the real-time data of a vehicle multi-source sensor; inputting real-time data of a vehicle multi-source sensor into the pulse neural network, and outputting a pulse feature set; performing symbolic coding on the pulse feature set through a neural symbol system to obtain symbolic information which can be understood by the large language model; inputting symbolized information, map information, a driver natural language instruction, historical driving experience data and a traffic rule base into a high-order planning module of a large language model, and outputting a high-level decision instruction; decoding the high-level decision instruction according to a neural symbol system to obtain a pulse control signal which can be identified by a pulse neural network; and inputting the pulse control signal into an execution layer of the pulse neural network, and outputting a decision instruction. According to the method, the problems of real-time performance and energy consumption of the existing method are solved, the decision transparency is improved, and the hardware efficiency is optimized.

The application discloses a multi-port impedance optimization-based harmonic suppression method for a non-electrolytic capacitor permanent magnet synchronous motor driving system, and belongs to the technical field of motor control. The application is aimed at the problem that active damping control will cause the increase of machine-side harmonics when used for the network-side current harmonic suppression of a non-electrolytic capacitor motor system. The machine-side port impedance regulation voltage and the network-side port impedance regulation voltage are calculated. The entropy weight TOPSIS method is used to calculate the optimal angle of the machine-side and network-side port impedance regulation voltage, and the machine-side and network-side port impedance regulation voltage is synthesized into a cooperative voltage. The cooperative voltage is decomposed into a d-axis component and a q-axis component, and then is superimposed on the dq-axis voltage given value, so that the controlled dq-axis voltage given value is obtained. The regulated alpha-beta axis voltage given value is obtained through the inverse Park transformation link, and then the pulse control signal of the inverter is obtained through the SVPWM control, so that the machine-side and network-side harmonic suppression of the driving system is realized. The application is used for the cooperative suppression of machine-side and network-side harmonics.

A dual-motor mixed-hybrid powertrain system, by performing pulse modulation control, i.e., series-hybrid intelligent start-stop control or parallel-hybrid intelligent power switching control, on the instantaneous power time-varying functions of an engine and a battery pack, can convert the surface working condition of an analog electric control engine into a simpler line working condition of a digital pulse control (DPC) engine, either a pre-determined high-state line working condition in the high-efficiency combustion area or a pre-determined non-combustion low-state line working condition with zero fuel consumption and zero pollutant emissions multiplexed in time. The traditional fixed one-to-one bidirectional mapping between an engine working condition and a vehicle working condition is converted into a dynamically adjustable many-to-many bidirectional mapping to achieve the full coverage of any overall vehicle working condition, achieving decoupling between a DPC engine working condition and the overall vehicle working condition and decoupling between software and hardware of a hybrid powertrain.

Methods and systems for controlling a system of superconducting qubits using single flux quantum (SFQ) pulse schedule is provided. The single flux quantum (SFQ) pulse schedule may comprise on-ramp, off-ramp, and resonant parts, wherein the frequency of a single flux quantum (SFQ) pulse clock is at about a multiple of a qubit frequency. The method may include: providing a system of one or more qubits; delivering a single flux quantum (SFQ) pulse to each of the one or more qubits, the single flux quantum (SFQ) pulse being capable of influencing a quantum state of a qubit; obtaining at least one single flux quantum (SFQ) pulse schedule for the one or more qubits, each schedule comprising on-ramp, resonant, and off-ramp parts; and implementing the at least one single flux quantum (SFQ) pulse schedule for the one or more qubits.

The invention provides a submarine optical cable bidirectional loopback detection device and method based on wavelength division multiplexing, and belongs to the technical field of optical fiber communication precision detection and intelligent analysis. Through the first detection shore station A module, the pulse control processor generates a downlink detection pulse to respectively drive an uplink detection pulse optical signal and a downlink detection pulse optical signal to a main optical fiber; the pulse control processor analyzes the first transmitting and receiving time delay and the first signal attenuation; a second detection shore station B module, wherein the pulse control processor generates an uplink detection pulse; analyzing the second transmitting and receiving time delay and the second signal attenuation, and comparing the first transmitting and receiving time delay and the first signal attenuation; the double-loop module is used for separating, converting and coupling the uplink detection pulse optical signal and the downlink detection pulse optical signal to a main optical fiber for returning; and the intelligent master control processing module is used for measuring the phase of the bidirectional loopback signal and the amplitude change of the loopback signal, detecting and judging whether the uplink signal and the downlink signal are normally received or not, and performing accurate fault positioning and intelligent fault cause analysis and detection by combining with signal time delay.

The oscillator is controlled with high precision. [Solution] (b) an Arnold-Tan evaluation means having a sweep program that continuously or discretely scans injection points, measures the response of the oscillator at each injection point, and determines the most stable injection point; (c) a control means that calculates and sets injection parameters for the actuator based on the phase detection signal of the sensor and the evaluation, and controls the actuator based on a control law based on Arnold-Tan stability analysis; and (d) an optimization means that evaluates the vibration state after injection and dynamically optimizes the injection parameters based on the control effect.

The utility model discloses a laser diode control circuit of a laser, comprising a pulse control signal generation circuit used for generating grid control pulse signals with adjustable power, frequency and duty ratio; the power amplification circuit is used for amplifying the grid control pulse signal; the grid electrode of the MOS tube is connected with the output end of the power amplification circuit, the source electrode of the MOS tube is connected with one end of a driving resistor, and the other end of the driving resistor is connected with the negative electrode of a driving power supply and a ground wire; the positive electrode of the laser diode is connected with the positive electrode of the driving power supply, the negative electrode is connected with the drain electrode of the MOS tube, and the laser diode is provided with a heat dissipation block; and the temperature acquisition control circuit is used for acquiring temperature data of the heat dissipation block and controlling the on-off state of the driving power supply, and controlling the driving power supply to be adjusted to be in a power-off state under the condition that the temperature data exceeds a preset temperature threshold value. According to the utility model, the heating value can be reduced, the optical power is improved, and the laser diode is protected when the temperature of the laser diode abnormally rises.

The application discloses a traffic signal lamp trigger type countdown control output method, comprising the following steps: S100, configuring signal lamp fixed time countdown time length and configuring current cycle phase information; S200, reading the cycle phase information of the traffic signal lamp at the current time node and the signal lamp fixed time countdown time length, and generating a running phase chain table; S300, judging whether the time before the non-traffic light color of the current lost traffic right phase meets the configured fixed time countdown time length; S400, if the configured fixed time countdown time length is met, triggering the corresponding countdown timer; if the configured fixed time countdown time length is not met, performing countdown correction and calculating the countdown extension time; and S500, repeating steps S200-S400. The application can generate a running phase chain table under the condition that traffic intersection parameters are pre-configured, pre-add, real-time update and calculate signal control data to achieve accurate control of the time when the trigger signal triggers the countdown timer, and realize the trigger type pulse control countdown algorithm.

Various methods, controllers, and motor systems are described that facilitate pulse control of a motor to increase the energy efficiency of the motor when conditions permit. Selected transitions between pulse output levels are controlled to provide a cubic or higher order transition torque profile. In various embodiments, a cubic, quintic, or higher order transition profile is used. Using such a transition torque profile can improve the NVH characteristics of the motor while providing energy saving pulse transitions.

A time-of-flight distance measuring method and TOF distance measuring system. The distance measuring method includes: intermittently transmitting a plurality of pulses from a pulse generation unit; controlling a TOF sensor to allow each pixel of a plurality of pixels in the TOF sensor to continuously perform a first signal sampling first proportion for a first predetermined time on a first proportion of a plurality of reflected signals and performs a second signal sampling second proportion for a second predetermined time on a second proportion of a plurality of reflected signals, so as to generate a plurality of sampling results corresponding to the plurality of pixels; obtaining a plurality of depth information and a plurality of luminance information corresponding to the plurality of pixels according to the plurality of sampling results; and adjusting the first proportion and the second proportion according to the plurality of depth information and the plurality of luminance information.

A controller applied to a power converter includes a startup and pulse control circuit, a power switch, a startup circuit, and a clamping circuit. The power switch is coupled to a primary side of the power converter and the startup and pulse control circuit, and turned on according to a gate control signal generated by the startup and pulse control circuit. The startup circuit is coupled to the primary side of the power converter, the startup and pulse control circuit and the power switch, and turned on according to a startup signal generated by the startup and pulse control circuit. The clamping circuit is coupled to the startup and pulse control circuit and the power switch, and clamps a current flowing through the startup circuit when the startup circuit is turned on.

This invention provides a pulse voltage regulation circuit, comprising: a pulse control module and a reference voltage regulation module; the pulse control module is used to generate a set of M switching control signals according to the number of continuously input pulse signals; the reference voltage regulation module is connected to the output terminal of the pulse control module and is used to select a resistor voltage division ratio according to the M switching control signals, and to divide the bandgap voltage according to the selected resistor voltage division ratio to generate a reference voltage output; wherein, M = 2 N N is an integer greater than or equal to 1. The pulse voltage regulation circuit provided by this invention solves the problem of existing voltage regulation schemes adjusting the output voltage by changing the resistance value of external resistors.

The utility model relates to the technical field of pulse controllers, and discloses an operation platform for a pulse controller, which comprises a base, a limit mechanism arranged at the top of the base, a support table arranged at the bottom of the limit mechanism, a protection mechanism arranged on the back of the support table and comprising a right-angle plate fixedly connected to the back of the support table. A first supporting frame is fixedly connected to the inner side of the right-angle plate, a motor is fixedly connected to the back face of the first supporting frame, a worm is fixedly connected to the output end of the motor, and a worm gear is meshed with the outer wall of the worm. According to the operation platform for the pulse control instrument, through the arranged protection mechanism, a protection cover can drive a sliding block to slide and limit in a limiting groove formed in a right-angle plate in the descending process, the limiting purpose is achieved, then the protection cover can cover the outer side of the pulse control instrument, and therefore the purpose of protecting the pulse control instrument can be achieved; and when the pulse control instrument is influenced by the outside, the damage to the pulse control instrument is reduced, and the practicability of the device is enhanced.

The invention relates to the technical field of unmanned aerial vehicle interference, in particular to a multi-band optical interference control method based on an unmanned aerial vehicle platform, and solves the technical problems of limited confrontation scene, easiness in ambient light interference and serious self-interference caused by single-band interference in the existing unmanned aerial vehicle countering technology. According to the invention, composite interference light covering the wavebands of 450 nm, 650 nm and 850 nm is emitted through the multispectral explosion flashing module; laser irradiation and radio frequency interference signals are detected in real time by using the threat sensing subsystem; a pulse control unit synchronous with a flight control system clock is adopted, and a phase locking trigger signal is generated according to exposure period characteristics of enemy optical equipment; self-interference suppression is realized through polarization orthogonal design and a mechanical shutter; spectrum combination and pulse parameters are dynamically adjusted based on enemy equipment types, full-spectrum confrontation of visible light and infrared equipment is achieved, and the method can be widely applied to the fields of military anti-unmanned aerial vehicle, important facility protection and privacy protection.

The utility model discloses a driving controller and a driving system of a stepping motor, the driving controller of the stepping motor at least comprises a control module, a pulse control module and a switch module, the control module is connected with the switch module through the pulse control module, the switch module is connected with a slave machine, and the slave machine is connected with the pulse control module. Wherein the control module is used for sending a control signal; the pulse control module is used for processing the control signal to obtain a processed signal; and the switch module is used for controlling the on-off and direction of the current according to the processed signal and controlling the operation of the slave machines, so that the host can control the plurality of slave machines and obtain the operation state of each slave machine.

The invention relates to the technical field of solid waste resourceful treatment and industrial automation control, and discloses a cracking production line intelligent control method and device.According to the cracking production line intelligent control method, a virtual accumulated energy index is calculated by collecting operation parameters of a feeding and discharging unit, and accordingly whether a conveying pipe section has a soft blockage trend or not is judged; after it is confirmed that the blocking trend exists, the material level of the colloidal particle buffering bin is detected to verify the material sealing safety; and when the safety condition is met, gas machine cooperative control is triggered, the feeding star-shaped discharger is driven to execute S-shaped pulse airlock action, and meanwhile, the raw material feeding auger is controlled to execute trapezoidal wave frequency sweeping conveying action until the virtual accumulated energy index is recovered. The blockage risk is pre-judged in advance through energy monitoring, efficient dredging is achieved through frequency conversion vibration and pulse control on the premise that reaction airtight safety is guaranteed, non-planned shutdown is effectively avoided, and the operation stability of a production line is improved.

The application discloses a high-temperature and high-pressure ultrafast pulse control valve, which comprises a valve body, a valve seat, a valve clack with a gas punching hole and a rotary driving mechanism, and the high-frequency pulse airflow is formed by the periodic coincidence of the gas punching hole and the valve seat air hole through the rotation of the valve clack; the innovation is that a spacing fine adjustment mechanism is arranged; the fixed frame is connected with the valve body, and the first flow channel pipe is fixed to the fixed frame; the valve seat is sleeved on the first flow channel pipe and is engaged with the first flow channel pipe through a threaded pair, and the rotary valve seat drives the axial displacement of the valve seat along the first flow channel pipe; the scale line on the outer periphery of the valve seat quantifies the corresponding relationship between the rotary angle and the axial displacement, and the precise adjustment of the micro gap of less than or equal to 0.04mm between the sealing surfaces is realized. The application breaks through the bottleneck of the gap control under the high-temperature working condition of the traditional pulse valve, avoids the noise and spark phenomenon caused by the high-speed rotation of the valve clack, accurately maintains the leakage rate of less than or equal to 5‰ when the pulse frequency is 60Hz, and guarantees the sealing reliability of the fluid scouring test.

The invention discloses a measurement regulation and control method and system of an atomization tester, and aims to solve the problem that a Peltier temperature control system is easy to generate overshoot and low-frequency oscillation at a critical point. The method comprises the following steps: S1, setting a target temperature and a precision tolerance interval; s2, rapidly cooling to a dynamic switching temperature; s3, switching to a precise approaching mode, and driving a Peltier by adopting a frequency self-adaptive micro-current pulse sequence based on the residual heat to realize overshoot-free temperature positioning; and S4, when the temperature meets the steady-state conditions of the mean value, the standard deviation and the trend slope, switching to a steady-state holding mode, performing spectral analysis on the temperature sequence to distinguish high-frequency disturbance and low-frequency drift, and only applying intelligent micro-compensation subjected to nonlinear filtering to the low-frequency drift. According to the invention, through multi-stage strategy matching, pulse control based on energy prediction and intelligent disturbance identification, rapid, accurate and stable control of the temperature of the condensation plate is realized, and the reproducibility of a test result is significantly improved.

A method and apparatus for diffusing a dopant within a semiconductor device is described. The method includes performing a dynamic surface anneal in which a substrate is placed inside of a process volume with a mixture of an inert gas and a small amount of oxygen gas. The surface of the substrate is then exposed to one or more rapid laser pulses. The rapid laser bursts diffuse dopant from a doped layer into the substrate. The doped layer is formed during a previous process operation. The temperature and number of laser pulses control the amount of diffusion of the dopant into the substrate. Other dynamic surface anneal operations may be optionally performed before or after the oxygenated dynamic surface anneal operation.

An exposure control unit, a timing generator unit, a metering unit, and a pulse control unit are provided. The exposure control unit generates a signal defining multiple second exposure periods contained within a first exposure period, which corresponds to a frame, each of which is shorter than the first exposure period. The timing generator unit generates a pulse signal defining the timing information within each second exposure period. The metering unit counts the pulse signal at or after the first photon capture in the second exposure period, based on the pulse signal generated by the timing generator unit. The pulse control unit performs pulse counting in a second exposure period following the first, based on a value from the metering unit.

The invention relates to a pre-current control method and system of a laser, computer equipment and a medical laser system. The method comprises the following steps: acquiring optical pulse data output by a laser; performing first filtering processing on the optical pulse data to obtain first filtered data; performing second filtering processing on the optical pulse data to obtain second filtered data; determining data acquisition time according to the first filtered data; calculating a maximum light overshoot intensity value and an average light overshoot intensity value corresponding to the data after the second filtering in the data acquisition time; adjusting the amplitude of the pre-current according to the maximum light overshoot intensity value and the average light overshoot intensity value; wherein the pre-current is the pre-current set before the pulse control current for controlling the laser to emit light. By adopting the method, the accuracy of suppressing the light overshoot of the laser can be improved.