27 results about "Analog control" patented technology

Circuits are disclosed for controlling voltage regulators. In general, one aspect disclosed features an electric circuit comprising: a digital ramp generator configured to generate a digital voltage ramp; a digital low-pass filter having an input electrically coupled to an output of the digital ramp generator and configured to low-pass filter the digital voltage ramp; a digital-to-analog converter having an input electrically coupled to an output of the digital low-pass filter and configured to generate an analog control signal based on the filtered digital voltage ramp; and a voltage regulator having an input electrically coupled to an output of the digital-to-analog converter and configured to regulate an output voltage based on the analog control signal and an input voltage of the voltage regulator.

The invention relates to a light module (220) comprising a matrix (111) of pixelated light sources, a driver (112) receiving a power voltage (Vp) and providing a driving voltage to each pixelated light source of the matrix (111), a monitoring circuit (113) connected to the driver (112) for monitoring the driver (112) and storing status information into at least one register, said register comprising at least one alarm bit indicating that the driving voltage is out of a correct range. The light module (200) further comprises an analog control circuit (221) connected to the register for receiving the at least one alarm bit and for providing an analog signal (Vreg) having a voltage value representative of the at least one alarm bit on an analog output. The invention also relates to a headlamp module (200) comprising a DC-DC converter (140) and a light module (220) according to the invention.

This utility model discloses a measuring device for measuring the rotational accuracy of an electric actuator, comprising an electric actuator, an encoder, an analog module, a PLC controller, a touch screen, and a power supply module. The electric actuator receives analog control signals and performs angular displacement; the encoder is installed at its output and is used to collect angular travel data; the analog module receives the 4-20mA analog signal output by the electric actuator and converts it into a digital signal; the PLC controller receives data from the encoder and analog module and performs accuracy analysis; the touch screen is connected to the PLC and displays the measurement results in real time; the power supply module provides power to all the above components. This device has a compact structure, high-precision automatic measurement capabilities, significantly improves testing efficiency, and reduces manual operation costs, making it suitable for rapid testing and quality assessment of industrial electric actuators.

This invention provides a control channel multiplexing and docking method, apparatus, computer equipment, and medium based on a high-speed network, comprising: configuring a logical channel connected to the control system for each test site and dynamically setting IP routing mapping relationships; converting analog feedback signals output by sensors at the first test site into digital feedback signals, encapsulating them, and transmitting them to the test control room via a high-speed real-time network; receiving a first data packet, decapsulating it, converting it into an analog feedback signal, and inputting it to the control system; converting analog control commands issued by the control system into digital control commands, encapsulating them, and transmitting them to the first test site via a high-speed real-time network; decapsulating a second data packet according to its destination IP address, converting it into an analog control command, and outputting it to the actuator; updating the IP routing mapping relationship and switching the logical channel connection when switching test sites. This enables the hardware resources of a control system to be reused.

An oscillation circuit includes an oscillator and a buffer. The oscillator provides at least one oscillation signal according to an analog control signal. The buffer is coupled to the oscillator. The buffer includes at least one input terminal, at least one output terminal, a buffer unit, a first capacitor array, and a second capacitor array. The at least one input terminal is configured to receive the at least one oscillation signal. The at least one output terminal is configured to provide at least one buffer signal. The buffer unit is coupled between the at least one input terminal and the at least one output terminal. The first capacitor array is coupled to the buffer unit and changes an equivalent capacitance value of the first capacitor array according to at least one first digital signal. The second capacitor array is coupled to the buffer unit and changes an equivalent capacitance value of the second capacitor array according to at least one second digital signal. The at least one second digital signal is generated according to the analog control signal.

This invention discloses a gas path control system, a gas path control method, and a semiconductor processing device. The gas path control system includes a vacuum gas path, a vacuum adsorption device, a vacuum proportional valve, and a control terminal. The vacuum gas path is connected to a vacuum source. The vacuum adsorption device has at least one adsorption surface, and airflow holes on the adsorption surface are connected to the vacuum gas path. The vacuum proportional valve is disposed in the vacuum gas path and is used to adjust the vacuum adsorption force supplied to the vacuum adsorption device. The control terminal is signal-connected to the vacuum proportional valve. The control terminal is used to output a continuously varying analog control signal to the vacuum proportional valve to drive the vacuum adsorption force of the vacuum adsorption device to linearly increase from a basic set value to a formal set value. Therefore, this invention can solve the technical problem that during wafer adsorption, a single set adsorption value causes a significant change in stress distribution or local deformation when the wafer contacts the chuck, resulting in poor measurement accuracy near the wafer edge.

This invention relates to a signal processing apparatus and a signal processing method. The signal processing apparatus includes a replication circuit integrated on a single circuit board, comprising multiple replication stages connected in series via on-board wiring to form a tree topology. Each replication stage replicates each received high-speed serial signal into at least two high-speed serial signals. The multiple replication stages include an input replication stage that receives a high-speed serial signal with a configuration control signal as input, and an output replication stage that outputs multiple high-speed serial signals with analog control signals. The input replication stage further separates the configuration control signal from the input high-speed serial signal. The apparatus also includes a control signal processing circuit integrated on a single circuit board, configured to generate corresponding signal source configuration and parameter tables for multiple output channels based on the configuration control signals. In response to access from an output channel, the apparatus provides analog control signals to the output channel based on the corresponding tables for simulating control channels of the corresponding signal sources.

A radio frequency power amplifier and a radio frequency chip. The radio frequency power amplifier comprises an amplifier (1), a first adjustable attenuation circuit (2), a second adjustable attenuation circuit (3), and a first capacitor (C1). Compared with the prior art, by adding the first adjustable attenuation circuit (2) and the second adjustable attenuation circuit (3) at an input terminal of the amplifier (1) and adopting a simple circuit structure, input attenuation protection is achieved; and fewer devices are used, so that the chip area cost can be effectively saved. Moreover, the input attenuation amounts of the first adjustable attenuation circuit (2) and the second adjustable attenuation circuit (3) can be flexibly adjusted by means of a digital control bit and an analog control voltage, thereby achieving free adjustment of different attenuation amounts at different temperatures. In addition, the input terminal of the amplifier (1) has a simple structure, so that complex feedback loop control is avoided, the response speed is faster, and the radio frequency performance of an amplifier path is less deteriorated.

The present invention concerns an analog actuator based on shape memory materials controlled by an electrical control system designed to overcome the limitations of conventional actuators (MMF), enabling their use in precise analog control applications. More specifically, the invention relates to the integration of analog MMFs into aircraft wings to enable real-time shape adjustment according to flight conditions.

To provide a delay synchronization circuit that enables high-speed and stable operation. [Solution] The hybrid delay synchronization circuit includes a digital control loop that includes a digital phase comparator with a dead zone, and an analog control loop that includes an analog phase comparator that operates in the dead zone.

The application discloses a kind of self-determination quasi-state control and anti-disturbance method of intelligent shuttle vehicle of cold storage.The method constructs environment space gradient field by distributed optical fiber sensing network, and inverts heat flow disturbance to update dynamic environment model;Synchronous analysis driving current harmonic to identify ground phase change state, and utilize digital twin model to compensate mechanism hysteresis effect;Adopt reflection-adaptation-learning three-layer decision architecture: reflection layer millisecond level responds to burst risk;Adaptation layer adjusts motion parameters for seconds;Learning layer minutes level planning quasi-state navigation path;Finally, through model predictive control, the instructions of each layer are fused, and the output of collaborative control signal is obtained.The application enables the shuttle vehicle to actively perceive, predict and adapt to the non-uniform dynamic environment of the cold storage, improving the operation safety, positioning accuracy and work efficiency in low temperature, slippery and multi-disturbance working conditions.

This invention provides a current and voltage measurement system and its adjustment method. The system includes: a time-domain impedance detection circuit, a control system, and a hybrid digital-analog control loop. The time-domain impedance detection circuit and the hybrid digital-analog control loop are respectively connected to the device under test (DUT), and the time-domain impedance detection circuit is connected to the control system. The control system is used to determine the impedance of the DUT based on the zero-input response of the time-domain impedance detection circuit; and to determine the automatic adjustment parameters of the control loop of the current and voltage measurement system based on the impedance of the DUT, thereby completing the parameter adjustment of the hybrid digital-analog control loop. This invention can improve the efficiency of time-domain impedance detection while achieving automatic adjustment of the control loop parameters of the current and voltage measurement system, thus improving the reliability of subsequent measurements of the DUT.

An oscillation circuit includes an oscillator and a buffer coupled to the oscillator. The oscillator is used to provide at least one oscillation signal according to an analog control signal. The buffer includes at least one input terminal, at least one output terminal, a buffer unit, a first capacitor array and a second capacitor array. The at least one input terminal is used to receive the at least one oscillation signal. The at least one output terminal is used to provide at least one buffered signal. The buffer unit is coupled between the at least one input terminal and the at least one output terminal. The first capacitor array is used to change a first equivalent capacitance value according to at least one first digital signal. The second capacitor array is used to change a second equivalent capacitance value according to at least one second digital signal.

The present application relates to the field of distributed photovoltaic power generation, and aims to provide a flyback micro-inverter critical discontinuous mode simulation control method. The inverter comprises a flyback converter, a power frequency inverter filter circuit and an inverter control circuit; wherein the inverter control circuit comprises an MPPT control circuit and a PWM wave generation circuit; the former comprises a reference voltage V ref generation circuit, a PI regulation circuit and a peak current reference value i ref generation circuit, a peak current reference value i ref generation circuit contains two multipliers and a divider circuit, by collecting the output voltage V pv of the photovoltaic module and the output current I pv , the peak current reference value i ref is obtained; the latter outputs the WM signal as the input of the MOS tube Q s , which is used for realizing the control of the flyback converter. The present application realizes the simulation control of the critical discontinuous mode flyback micro-inverter, can save the digital chip commonly used in the existing control mode, and reduces the complexity and control cost of the system.

The application provides a front-end neuromorphic processing circuit for display panel gate pulse modulation and a working method thereof. The circuit comprises a feature mapping input module, a 1T1R neuromorphic cross array module and a bit line clamping and differential readout module. The application is positioned as an intelligent information processor for the front end of GPM driving, collects the row number and temperature of the panel and the like features, and performs high-precision analog matrix multiplication for anti-sneak current by using a synapse array with a 1T1R architecture. In particular, the application introduces a stable voltage common gate circuit to virtually ground clamp the bit line, completely solves the problem of potential drift caused by array current change, and guarantees the extremely high linearity of calculation. The application directly provides the required slope, threshold and other analog control parameters for the parallel calculation of the rear GPM module, greatly reduces the bandwidth and power consumption burden of the traditional digital signal processing, and provides an efficient front-end hardware acceleration scheme for an intelligent display driving chip.

The application relates to the technical field of semiconductors and discloses a heating power supply system which comprises a total control module, a sampling module and at least one unit machine module, wherein the sampling module is used for collecting total output voltage and total output current of the heating power supply system; the total control module is connected with the sampling module; the total control module is used for generating an analog control signal after digital control loop operation based on the total output voltage and the total output current and in combination with a preset given value; each unit machine module is connected with the total control module; each unit machine module is used for generating a driving signal for adjusting self output power after operation by using an analog control loop in the unit machine module based on the analog control signal; and the output power of each unit machine module is collected and used as total output power of the heating power supply system. The application can improve bandwidth, enhance the system disturbance suppression capability and the control capability for stable output, and improve the output precision and stability of the heating power supply.

This disclosure relates to the technical field of anchor cable support equipment, and provides a method, device, medium, and equipment for automatic anchor drilling control of a coal mine anchor cable drilling rig. The method includes: executing an initialization process to reset the drilling rig's actuator and confirm that the sensors are operational; acquiring a pre-set target drilling depth; using a propulsion pressure sensor and a rotation pressure sensor to collect propulsion pressure data and rotation pressure data of the drilling rig in real time during the drilling process, and calling a pre-built simulated PID control model to determine the target control opening of the drilling rig's proportional valve; outputting control commands to the proportional valve according to the target control opening to control the propulsion cylinder to perform drilling actions, and collecting actual drilling depth data in real time based on a displacement sensor; and controlling the drilling rig to automatically connect or automatically retract the drill rod based on the actual drilling depth data and the target drilling depth. This embodiment achieves automated control of the anchor cable drilling operation, reduces manual operation, and improves the accuracy of borehole depth control.

This invention relates to the field of intelligent connected vehicle testing technology, and more particularly to a rain simulation control method and system for testing the expected functional safety of vehicles. The method includes the following steps: S1, setting the target rainfall intensity and system control cycle; S2, acquiring rainfall data using multiple rain sensors arranged along the test tunnel. k S2: Calculate multiple measured values ​​within a control cycle, and obtain real-time water pressure values ​​through a pressure sensor installed in the rainfall unit; S3: Determine the current average rainfall intensity based on the measured values ​​from multiple rain sensors; S4: Based on the difference between the target rainfall intensity and the current average rainfall intensity, and by integrating the real-time water pressure values, generate a drive control signal for the high-pressure water pump in the rainfall unit using a composite control strategy combining feedforward and feedback control; S5: Repeat steps S2 to S4 until the rain simulation task ends. This invention provides accurately quantifiable and stable environmental conditions for SOTIF testing.

This invention belongs to the field of electronic and information control technology, specifically a memristor-based multi-sensor fusion hybrid analog-digital self-balancing control system. It includes an analog computing module, a digital computing module, a balancing execution module, and a power supply module. The analog computing module integrates an accelerometer and a gyroscope, achieving data fusion through a memristor-analog Kalman fusion filter circuit. It generates analog control signals based on a memristor-analog PD controller circuit, and simultaneously utilizes the memristor dynamic adjustment circuits in both circuits to achieve real-time parameter optimization, applying positive or negative pulses according to pulse polarity to adjust the resistance state. The digital computing module acquires signals and rotational speed data through an ADC, uses a cascaded PID algorithm to generate PWM signals, and drives a brushless motor in conjunction with a momentum wheel to complete millisecond-level dynamic balancing adjustment. The balancing execution module employs a high-precision bidirectional torque momentum wheel, adaptable to complex motion scenarios such as robots and drones. This invention utilizes memristors for analog computing, combining non-volatility and low power consumption characteristics, reducing system load and improving response speed.

This allows the output and / or input of the equipment to be varied in response to transient frequency fluctuations in the grid, thereby suppressing grid frequency fluctuations. [Solution] A power control device according to one embodiment is a power control device that controls a power converter connected to an AC electrical circuit and also connected to an energy storage means, comprising: an energy storage amount acquisition means for measuring or calculating the amount of energy stored in the energy storage means; a phase calculation means for calculating the phase of various electrical quantities of the electrical circuit; an inertia simulation control signal generation means for generating an inertia simulation control signal for the power converter according to the measured phase; and a command means for switching a plurality of functions stored in the inertia simulation control signal generation means or changing the coefficients of the functions, at least according to the amount of energy stored.

The application discloses a kind of trolley power-assisted control system and trolley power-assisted system.The trolley power-assisted control system includes handrail switch, force detection module, reading module, protection circuit, isolation filter circuit, differential amplifier circuit and follow-up circuit;Handrail switch is used to provide switch signal for reading module when handrail key is pressed;Force detection module is used to form differential analog signal according to the stress at handrail;Reading module is used to read differential analog signal when receiving switch signal;Protection circuit is used for voltage protection to differential analog signal;Isolation filter circuit is used for isolation filtering to differential analog signal;Differential amplifier circuit is used for amplifying differential analog signal;Follow-up circuit is used for voltage following of amplified differential analog signal, output analog control signal, to control trolley power-assisted system action.Improves the control precision of trolley power-assisted control system, and then the power-assisted accuracy of trolley power-assisted system can be improved.

The application discloses a long short-term memory neural network circuit based on spintronics and a control method, which comprises an input circuit, a weight circuit and an activation function circuit. The input circuit utilizes a magnetic domain wall-magnetic tunnel junction device to realize time integration of the current time input and the previous time state by analog control of the magnetic domain wall position. The weight circuit comprises a cross array composed of multi-state magnetic domain wall-magnetic tunnel junction devices, wherein the synaptic weight is non-volatile stored as a discrete magnetic domain wall position defined by a photolithography notch. The weight circuit performs a matrix vector multiplication operation in the analog domain. The activation function circuit comprises a random magnetic tunnel junction device, which provides a nonlinear activation function by utilizing the voltage-dependent probability flipping characteristics of the random magnetic tunnel junction device. The application does not need a memristor and a conventional CMOS logic to realize the core LSTM operation, thereby significantly reducing the hardware area, power consumption and delay.

An oscillation circuit includes an oscillator and a buffer coupled to the oscillator. The oscillator is used to provide at least one oscillation signal according to an analog control signal. The buffer includes at least one input terminal, at least one output terminal, a buffer unit, a first capacitor array and a second capacitor array. The at least one input terminal is used to receive the at least one oscillation signal. The at least one output terminal is used to provide at least one buffered signal. The buffer unit is coupled between the at least one input terminal and the at least one output terminal. The first capacitor array is used to change a first equivalent capacitance value according to at least one first digital signal. The second capacitor array is used to change a second equivalent capacitance value according to at least one second digital signal.

The utility model provides a microphone sound effect processing device, which relates to the technical field of audio signal processing and comprises a processing device body, the input end of the processing device body is connected with a microphone, the output end of the processing device body is connected with audio playing equipment, and the processing device body comprises a front-end processing module, an audio processing module and a control module. The input end of the front-end processing module is connected with a microphone, the output end of the front-end processing module is connected with the input end of the audio processing module, the output end of the audio processing module is connected with audio playing equipment, and the control module comprises a plurality of adjustable potentiometers and is used for setting sound effect parameters, converting analog control signals into digital control signals and transmitting the digital control signals to the audio processing module. The microphone is compact in structure and high in function integration level, can realize sound effect processing of reverberation, treble and bass and the like on the premise of not changing the interface form of the microphone, has good compatibility and plug-and-play performance, and is suitable for flexible deployment in various audio scenes.

The application belongs to the technical field of power management circuit, and particularly relates to a three-level buck-boost converter adopting V 2 COT control. The three-level buck-boost converter comprises: a power stage module, which is used for converting an input voltage into a stable output voltage by controlling the conduction and turn-off of a power switch tube according to a driving signal output by a digital control module; an analog control module, which is used for generating a first control signal according to the difference between the output voltage and a reference voltage, and comparing the first control signal with a feedback output voltage after being superimposed with a ramp signal to generate a second control signal input to the digital control module; and the digital control module, which is used for determining that the system works in a Buck mode, a Boost mode or a detection mode according to the second control signal and a mode selection signal generated by a finite state machine. The application realizes fast transient response and good stability, and simultaneously considers the smoothness of multi-mode switching and the voltage balance of a flying capacitor.

In an example, a phase-locked loop (PLL) circuit includes an oscillator, a frequency search circuit, and an analog control loop. The oscillator is configured to provide a clock signal. The frequency search circuit is configured to measure a first frequency of the clock signal for a first clock control signal, measure a second frequency of a second signal for a second clock control signal, and determine, based on the first frequency, the second frequency, the first clock control signal, and the second clock control signal, a third clock control signal corresponding to a programmed frequency, the third clock control signal for causing the clock signal to have a frequency based on the programmed frequency. The analog control loop is configured to control the oscillator to cause the frequency to converge to the programmed frequency.

A light emitting diode (LED) matrix and a method for controlling same. The matrix an array of LEDs and an LED matrix control circuit. The control circuit includes a driver corresponding to each LED; a voltage controller; a digital-to-analog converter (DAC); a microcontroller unit (MCU); and a current-to-voltage converter. The method is executed by the control circuit. The method includes generating, by the MCU, a digital control signal indicative of a brightness level to be set in a given LED; generating, by the DAC, an analogue control signal for the given LED based on the digital control signal; acquiring, by the voltage controller, the analogue control signal and a feedback signal; generating, by the voltage controller, a synthesized control signal based on the analogue control signal and the feedback signal; and adjusting, by the corresponding driver, a brightness level of the given LED.