182 results about "Analog control" patented technology

The invention relates to the technical field of power supply equipment power control. The load power track simulation control method comprises the steps of obtaining voltage information and current information of target power supply equipment, determining power deviation information and a dynamic target voltage range generated on the basis of a preset load behavior prediction model, constructing a combined regulation and control weight vector on the basis of the power deviation information, and obtaining a load power track simulation control result. According to the combined regulation and control weight vector and the dynamic target voltage range, constructing a target power evolution trajectory curve by using a physical response inversion mechanism, executing time discretization processing on the target regulation and control trajectory curve, extracting voltage change values and current change values corresponding to each time step, and calculating the target power evolution trajectory curve; and combining the voltage change value and the current change value according to a time sequence to form a control parameter sequence, and generating an analog control instruction matched with the target power evolution trajectory curve according to the control parameter sequence. The method has the effect of improving the real-time response capability of the power supply equipment under complex working conditions.

The invention provides a delay compensation control method for a double-vibrator wave energy conversion device, which comprises the following steps of: performing numerical modeling and hydrodynamic analysis on the double-vibrator wave energy conversion device, establishing a time domain motion equation of the double-vibrator wave energy conversion device, and introducing a time delay function into the time domain motion equation to simulate control signal transmission delay; simulating the execution delay of the brake by using a partial differential equation; establishing a state-space equation of the device, replacing a convolution term of the time-domain motion equation with the state-space equation, and calculating to obtain a motion state of the device; a Hamiltonian function is defined to convert a constrained optimization problem into an unconstrained optimization problem, and the Hamiltonian function is solved to obtain an optimal control criterion considering control delay so as to realize maximization of energy capture under the optimal control criterion. According to the method, the operation characteristics of a physical system are truly reflected by introducing control delay, so that the locking control method is effectively implemented in an actual physical device, and the energy capture efficiency of a wave energy conversion device and the reliability of system operation are effectively improved.

The invention relates to the technical field of high-voltage VI modules, and particularly discloses a high-voltage VI source module for SOC testing, which comprises an output stage module, a sampling module and a control and conversion module, the output stage module is constructed by adopting discrete high-voltage power devices, supports four-quadrant operation, and can realize flexible output and absorption of voltage and current; the sampling module is composed of a voltage sampling unit and a current sampling unit which respectively monitor voltage and current signals of the output stage in real time. The control and conversion module comprises a control unit and a digital-to-analog conversion unit; the digital-to-analog conversion unit is responsible for converting a digital control signal into an analog control signal to drive the output stage and converting analog voltage and current signals collected by the sampling module into digital feedback signals; and the control unit receives the digital feedback signals and adjusts the output of the digital-to-analog conversion unit in real time through a closed-loop control algorithm, so that high-precision and high-stability control on the output-stage voltage or current is realized.

According to an embodiment, a phased-locked loop (PLL) circuit, within a gyroscope system, generates demodulation signals. It includes a phase frequency detector receiving gyroscope output, which compares a reference signal with a feedback signal to produce an error signal. A charge pump then converts this error into a first analog control signal. A programmable clamp circuit refines this into a second analog control signal. A voltage-controlled oscillator uses the second signal to produce an output signal at a controlled frequency determined by the clamp circuit. A frequency divider sends a comparison frequency signal back to the detector, completing the loop.

An analog electronic component for control of an aerosol delivery device is provided. The aerosol delivery device includes a heating element, a reservoir that retains aerosol precursor composition, and an analog electronic component that in response to user input, and independent of a digital processor, is configured to direct a constant current to the heating element and thereby cause the heating element to activate and vaporize components of the aerosol precursor composition in response to user input, and a user input interface through which the user input is receivable.

The invention relates to the technical field of switching power supply analog control, in particular to a control method and system for a small-duty-ratio BOOST module based on digital control, and the method comprises the following steps: S1, carrying out the sampling of the equal-proportion reduced output voltage of an operational amplifier through an ADC analog-to-digital converter, processing the sampled voltage value through a filtering algorithm to obtain an output voltage VO; and S2, carrying out calculation processing on the output voltage VO through a PID control algorithm, and obtaining an expected output voltage through a fixed-frequency adjustment duty ratio PWM and a fixed-duty ratio frequency modulation PFM. Efficient and stable voltage boosting is achieved through double-closed-loop digital control, dynamic response and anti-interference capacity are achieved, the core lies in collaborative design of power conversion and a control strategy, input direct-current voltage is boosted to higher stable output voltage, a double-closed-loop (voltage loop + current loop) control strategy is adopted, and the voltage boosting effect is achieved. And closed-loop adjustment is realized by combining PWM driving and ADC sampling.

According to an embodiment, a phased-locked loop (PLL) circuit, within a gyroscope system, generates demodulation signals. It includes a phase frequency detector receiving gyroscope output, which compares a reference signal with a feedback signal to produce an error signal. A charge pump then converts this error into a first analog control signal. A programmable clamp circuit refines this into a second analog control signal. A voltage-controlled oscillator uses the second signal to produce an output signal at a controlled frequency determined by the clamp circuit. A frequency divider sends a comparison frequency signal back to the detector, completing the loop.

The embodiment of the invention provides a converter mode switching control circuit and method, and the circuit comprises a voltage regulation unit circuit, a Buck bridge arm unit control circuit, a Boost bridge arm unit control circuit, and a mode selection circuit. The voltage regulation unit circuit is used for converting an output voltage Vo into an error signal Verror and sending the error signal Verror to the Buck bridge arm unit control circuit and the Boost bridge arm unit control circuit respectively; the sawtooth wave generator outputs a signal vsaw, sends the signal vsaw to the Buck bridge arm unit control circuit, and outputs a Buck bridge arm duty ratio Dy1; the sawtooth wave generator outputs a signal vsaw, sends the signal vsaw to the Boost bridge arm unit control circuit, and outputs a Boost bridge arm duty ratio Dy2; and the mode selection circuit is used for indicating a Boost mode, a Buck mode and a Buck-Boost mode. The invention provides digital and analog control of converter three-mode smooth switching.

The invention belongs to the technical field of photoelectric fusion integrated circuits, and particularly discloses a parallel PWM expansion high-precision programmable DAC structure. The adjusting module is used for adjusting the thermo-optical phase shifter according to the received digital control signal; the DAC structure specifically comprises a pulse width modulation signal generator and a current source array, wherein the pulse width modulation signal generator is used for acquiring a low-order code element from the digital control signal to generate a pulse width modulation signal, and sending the pulse width modulation signal to the current source array; wherein the current source array is used for acquiring a high-order code element from the digital control signal to generate a high-order analog signal; a low-order analog signal is generated based on the pulse width modulation signal; and the processor is also used for weighting and accumulating the low-order analog signal and the high-order analog signal to obtain an analog control signal and outputting the analog control signal. The DAC structure is high in precision and simple in structure.

The utility model provides a radio frequency power amplifier and a radio frequency chip. The radio frequency power amplifier comprises an amplifier, a first adjustable attenuation circuit, a second adjustable attenuation circuit and a first capacitor. Compared with the prior art, the first adjustable attenuation circuit and the second adjustable attenuation circuit are additionally arranged at the input end of the amplifier, input attenuation protection is achieved by adopting a simple circuit structure, the number of used devices is small, and the chip area cost can be effectively saved. Meanwhile, the input attenuation amount of the first adjustable attenuation circuit and the second adjustable attenuation circuit can be flexibly adjusted through a digital control bit and an analog control voltage, and free adjustment of different attenuation amounts at different temperatures is achieved; meanwhile, the input end of the amplifier is simple in structure, complex feedback loop control is avoided, the response speed is higher, and deterioration of the radio frequency performance of an amplifier channel is smaller.

A power supply circuit generates from the input voltage of a primary circuit system the output voltage of a secondary circuit system by driving a switching output stage. The power supply circuit includes: a pulse feedback signal generation circuit that generates a pulse feedback signal corresponding to the output voltage; an analog control signal generation circuit that generates an analog control signal corresponding to the pulse feedback signal; and a switching driving control circuit that drives the switching output stage according to the result of comparison of the analog control signal with a slope signal. The analog control signal generation circuit raises the maximum value (an internal supply voltage) of the analog control signal with a predetermined gradient during the start-up or renewed start-up of the output voltage.

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.

1. The name of the design product: programmable controller (VG700). 2. The use of the design product: used for switch logic control, analog control, motion control, process control, data processing and networking communication of intelligent manufacturing system equipment in automated production. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention belongs to the technical field of electronic equipment communication control, and provides a multi-electronic equipment communication method and system, and the method comprises the steps: responding to an access request of at least one slave device; detecting the slave device through the master control device to obtain the equipment type of the slave device; and according to the equipment type of the slave device, constructing a physical communication link between the master control device and the slave device, and sending the control data and the high data volume data to the slave device through the physical communication link. The method has the beneficial effects that compatible communication of high-speed equipment and low-speed equipment is realized through dynamic access and dynamic address allocation, stable transmission of speed data streams is carried out on a plurality of high-speed electronic devices, data transmission and control are not influenced by plugging of the high-speed electronic devices, and unified control of a system layer is realized; by simulating the existing pin resources of the control or feedback signal, the transmission of data with high data volume is performed without increasing additional pin resources.

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.

A multi-mode power management integrated circuit (PMIC) is provided. Specifically, the multi-mode PMIC can be provided in a wireless communication device to generate an output voltage, which can be an envelope tracking (ET) voltage or an average power tracking (APT) voltage, for amplifying a radio frequency (RF) signal. According to an embodiment disclosed herein, the PMIC replaces a conventional all-analog control circuit with a multi-input hybrid control circuit that includes both analog and digital circuitries. By incorporating the digital circuitry to perform certain processing tasks digitally, it is possible to improve efficiency and reduce the footprint of the multi-mode PMIC.

The application provides a delay compensation control method for a double pendulum wave energy conversion device, which comprises the following steps: numerical modeling and hydrodynamic analysis are performed on the double pendulum wave energy conversion device, time domain motion equations are established, a time delay function is introduced into the time domain motion equations to simulate control signal transmission delay, and partial differential equations are used to simulate the execution delay of the brake; state space equations of the device are established, the convolution items in the time domain motion equations are replaced by the state space equations, and the motion state of the device is calculated; a Hamilton function is defined to convert a constrained optimization problem into an unconstrained optimization problem, the optimal control criterion considering the control delay is obtained by solving the Hamilton function, and the maximization of energy capture under the optimal control criterion is realized. The application truly reflects the operation characteristics of the physical system by introducing the control delay, so that the closed-loop control method is effectively implemented in the actual physical device, and the energy capture efficiency of the wave energy conversion device and the reliability of the system operation are effectively improved.

The invention relates to the technical field of xenon lamp power supply control, in particular to a xenon lamp power supply adaptive structure based on analog control. According to the technical scheme, the circuit comprises a rectification filtering module, an LCC half-bridge resonance circuit, a transformer, a voltage doubling circuit, a full-bridge rectification circuit and a control unit which are connected in sequence. A primary coil of the transformer is connected with the LCC half-bridge resonance circuit, and two secondary coils of the transformer are respectively connected with the input end of the voltage doubling circuit and the input end of the full-bridge rectification circuit; and the output end of the voltage doubling circuit is coupled to an upper bridge arm node of the full-bridge rectifying circuit. Through combination of high-frequency resonant topology and analog feedback control, the xenon lamp trigger voltage self-adaptive adjustment and millisecond-level pre-combustion state accurate switching are realized while the power supply volume (a high-frequency transformer replaces an industrial frequency transformer) is remarkably reduced, the defects of large volume and high loss of a traditional scheme are overcome, and the reliability of the xenon lamp trigger voltage self-adaptive adjustment and millisecond-level pre-combustion state accurate switching is improved. And the pre-combustion success rate is improved, the switching loss is reduced, and the reliability, the energy efficiency and the adaptability of the xenon lamp power supply are comprehensively optimized.

The invention relates to the technical field of testing machines, and discloses a multifunctional simulation testing machine suitable for cabinet connection testing, which comprises a machine body, a cabinet cavity with an opening at the rear end is arranged in the machine body, a plurality of wiring terminals are arranged in the cabinet cavity, and each wiring terminal is provided with an input end and an output end connected with a cabinet; the operation panel is provided with a plurality of control switches for outputting digital control signals or analog control signals, the control switches are electrically connected with the input end, and the digital control signals or the analog control signals sent by the control switches are transmitted to the cabinet machine through the wiring terminal; the design that the control switch can output a digital control signal or an analog control signal breaks through the limitation of single function of traditional test equipment, can meet the diversified requirements of different models and different functions of cabinet machines for test signals, enables one piece of equipment to complete various test tasks, greatly widens the application scene of the equipment, and improves the test efficiency. The equipment purchase cost of an enterprise is reduced; the problem that a testing device is single in function is solved.

The invention relates to a lighting control system and method for simulating a whole vehicle BCM based on a high-side switch and a single-chip microcomputer, and a medium, and relates to the technical field of vehicle lamp simulation control. The lighting control system comprises an instruction input module which is used for generating an original lighting instruction according to a key group and controlling a lighting test; the main control module is used for generating a lighting analog control signal according to the original lighting instruction; the high-side switch driving module is used for driving the mode switching of the vehicle lamp assembly according to the lighting analog control signal and limiting the electric energy flowing through the vehicle lamp assembly; the communication module is used for simulating and sending CAN signals to interact with vehicle lamp assembly signals, and configuring and storing lighting simulation parameters and lighting test data; the load interface module is used for being connected with vehicle lamp assemblies with different interface types, transmitting lighting simulation control signals to test the vehicle lamp assemblies and generating lighting test data; a lighting instruction is translated in a multi-mode mode through an instruction polarization translation mechanism, and high-interference-resistance and low-delay lighting analog control signal generation is achieved.

The invention relates to a control system and method for active self-adaptive vibration and noise reduction of power transformation equipment, and relates to the field of electrical engineering. The control system is mainly composed of a signal acquisition module, a signal separation module, a signal processing module and an execution module. A piezoelectric sensor of the signal acquisition module accurately captures a vibration signal of power transformation equipment, and covers fundamental frequency and harmonic components; the signal separation module and the signal processing module adaptively adjust the analog control circuit, and adaptively adjust the phase and the amplitude according to the change of vibration; the execution module responds rapidly for the inertia actuator and generates reverse inertia force according to a circuit instruction. Vibration fundamental frequency and harmonic signals can be effectively integrated, noise generated by vibration of electrical equipment is suppressed in real time, equipment noise is remarkably reduced, vibration is reduced, the operation stability of the equipment is improved, the service life is prolonged, important application value is achieved in the field of power transformation equipment, and efficient and stable operation of the equipment is assisted.

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.

The invention relates to display equipment and a display equipment control method, and relates to the technical field of display equipment. The display device includes a display configured to display a user interface; the at least one controller is connected with the display and is configured to respond to a control message sent by the remote controller and analyze the control message; when it is analyzed that the control message is generated based on key operation on a trigger area in the remote controller when the remote controller is in a touch mode, focus view detection is carried out on a first interface currently displayed by the display; simulating a key event corresponding to the control message based on a key value corresponding to the trigger area under the condition that the focus view does not exist in the first interface; and executing the key event based on the first interface. By adopting the technical scheme, the compatibility of key event interaction logic in the touch mode of the remote controller can be realized, the smooth interaction between the remote controller and the display equipment is ensured, and the user experience and the application compatibility of the display equipment are improved.

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.

The application relates to a detection system for an SDN terminal device, wherein a system upgrade interface, an optical port, an electric port and a controller interface are arranged on the SDN terminal device; the detection system comprises a detection device and a remote server; the detection device comprises a shell and a system upgrade assembly, an optical port detection assembly, an electric port detection assembly, an SDN simulation control assembly and a main controller arranged in the shell; the system upgrade assembly is connected with the system upgrade interface; the optical port detection assembly is connected with the optical port; the electric port detection assembly is connected with the electric port; and the SDN simulation control assembly is connected with the controller interface. Compared with the prior art, the application can detect the electric port, the optical port and the voice port of the SDN terminal device and perform system updating operation under the condition that the SDN terminal device is disconnected with the SDN controller, and the detection function is perfect and the detection effect is good.

The invention discloses a high-speed electronic switch for an Ethernet electrical port bypass, and the electronic switch comprises a high-speed signal switching circuit which is used for switching a high-speed signal path; the high-speed signal high-frequency isolation circuit is used for improving the isolation degree of high-frequency signals; the negative voltage generation circuit is used for generating a negative voltage required for controlling the switching tube; the gating signal control module is used for converting an external logic signal into an analog control signal; the switching circuit automatically conducts a bypass path during power failure, the signal bandwidth is not lower than 1GHz, and the switching circuit is suitable for Ethernet, HDMI or USB high-speed communication scenes. The bypass circuit is used for realizing an Ethernet electrical port bypass function, can be automatically switched to a bypass path when a node is powered off or has a fault, ensures high reliability and continuity of a network link, and is adaptive to high-speed communication scenes such as Ethernet (1Gbps and above), HDMI (high-definition multimedia interface) (supporting 4K and 60Hz), USB 3.0 and the like.

The invention provides an adjustable probability random number generator based on an MRAM (Magnetic Random Access Memory) and electronic equipment. The random number generator comprises an MTJ random number generation unit which is used for adopting an MTJ device as an entropy source to output an original random bit stream, and the 0 / 1 distribution probability of each bit is 50%; the shift register module is used for continuously receiving the original random bit stream for N times and generating an N-bit binary accumulated value, and N is an integer greater than or equal to 2; the threshold register module is used for storing a preset threshold T, and T is an integer between 0 and 2N-1; and the digital comparator module is used for comparing the N-bit binary accumulated value with a preset threshold value T, outputting a first logic value when the N-bit binary accumulated value is greater than or equal to T, and otherwise, outputting a second logic value. Therefore, the probability distribution of the binary bit stream output by the random number generator can be dynamically adjusted through a digital threshold segmentation method, an additional simulation regulation and control circuit does not need to be modified and introduced, and the method is suitable for cryptography, Monte Carlo simulation and a self-adaptive probability calculation system.

The invention discloses a low-noise operational amplifier based on current multiplexing, relates to the technical field of radio frequency integrated circuits, and solves the technical problems of limited gain bandwidth product and conversion rate, high static power consumption and lack of dynamic power consumption adjustment capability. According to the technical scheme, the circuit is characterized by comprising a first adaptive biasing circuit, a first amplifying circuit, a second amplifying circuit, a multiplexing current adaptive circuit, a current multiplexing circuit and the like, wherein an active buffer circuit is arranged between the first amplifying circuit and the second amplifying circuit. The first adaptive bias circuit adjusts bias voltage by using signal strength, and the second adaptive bias circuit is provided with an analog control and power detection circuit. And the current multiplexing circuit cooperates with each part and comprises a self-adaptive adjustment mechanism. According to the invention, the gain bandwidth product and the conversion rate are improved through current multiplexing and active buffering, and the noise is reduced; power consumption is reduced through self-adaptive bias; the bias monitoring and current detection feedback control circuit ensures the stability; and the method has flexibility and adaptability, and can efficiently process signals and save energy.

The invention belongs to the technical field of power electronic converters, and provides an all-digital control system and method of a two-stage DC-DC converter, the control system comprises two sampling conditioning circuits, two digital controllers and an isolation signal transmission unit, the sampling conditioning circuits are used for obtaining analog sampling signals of the input side and the output side of the converter, and the two digital controllers are used for transmitting the analog sampling signals to the isolation signal transmission unit; the digital controller at the output side calculates an analog control signal according to the analog sampling signal at the output side, the isolation signal transmission unit forms an isolation feedback signal according to the analog control signal and the output voltage, and the digital controller at the input side forms a driving signal of the switching device according to the isolation feedback signal and the analog sampling signal at the input side. According to the system, closed-loop control and state monitoring of the input side and the output side can be achieved at the same time, the control freedom degree of the two-stage DC-DC converter is improved, and the system can adapt to various complex application occasions.

The invention discloses a reconfigurable filter design method based on a numerical control adjustable zero point technology, an MOS switch array is directly driven by using a digital control signal, an external DAC is not needed to generate an analog control voltage, the problems that an analog circuit is complex, the precision is limited and the system size is increased are avoided, a mode switching module adopts a programmable multi-switch structure, and the design efficiency is improved. By changing the connection mode of the high-pass filter and the reconfigurable low-pass filter, flexible switching among all-pass, low-pass, high-pass and band-pass modes can be realized, and various filtering functions can be completed by a single chip. The whole filter structure is realized based on a standard CMOS (Complementary Metal-Oxide-Semiconductor Transistor) process, an external transmission line or a variable capacitance element is not needed, the area occupation and the parasitic effect under a low-frequency band are reduced, the system integration level and the reconfigurability are remarkably improved, and the filter realizes the effects of small size, simple control, stable frequency response and easy integration; the defects that in the prior art, the size is large, DAC control is relied on, and frequency band application is limited by a transmission line structure are comprehensively overcome.