54935 results about "Control circuit" patented technology

The invention provides a drive control circuit with a fault detection function, and relates to the technical field of fault detection, and the drive control circuit comprises the steps: obtaining historical state parameters, carrying out the time-frequency domain analysis through wavelet transformation, and constructing a heterogeneous neural network for fault judgment; operating parameters are collected in real time, multi-domain feature extraction is carried out, and a fault type is determined based on a dynamic time warping algorithm and fuzzy logic reasoning; and constructing a time sequence prediction network of a multi-layer attention mechanism, outputting a multi-dimensional early warning index in combination with the integrated learning model, and generating hierarchical early warning information. According to the invention, the fault of the driving control circuit can be accurately detected and predicted.

A codeword read from memory includes data blocks including data and supplemental blocks including error correction code (ECC) symbols for detecting and correcting data errors. Metadata can be stored in the supplemental blocks to increase memory utilization but using bits of the supplemental blocks for metadata leaves too few bits remaining for the ECC symbols. To maintain error protection, the supplemental blocks include ECC symbols to protect a first data portion of the codeword and parity bits configured to protect a second data portion of the codeword. Errors in the first data portion can be located and corrected using the ECC symbols. Errors in the second data portion can be detected by the parity. For example, the first data portion is encoded based on the second data portion, so locations of parity errors correspond to locations of symbol errors, and parity errors can be corrected.

Apparatuses, systems, and methods for managing access to metadata stored at a memory. To manage access to metadata, a mode register is configured to receive a metadata enable setting and to provide a metadata enable signal based on the metadata enable setting. A metadata access control circuit configured to receive a column address identifying a particular column to be accessed within a memory array. The metadata access control circuit blocks access to a column corresponding to the column address when the column address matches one of a plurality of particular column addresses designated for storage of metadata and the metadata enable signal has a first value, and permits access to a column corresponding to the column address when the column address is different than every one of the a plurality of particular column addresses designated for storage of metadata or the metadata enable signal has a second value.

A modular surgical system for use in a surgical procedure is disclosed. The modular surgical system includes a control module including a power supply and surgical modules including a first surgical module and a second surgical module. The first surgical module is arranged in a stack configuration with the control module and the second surgical module. The power supply is configured to output power to the first surgical module and the second surgical module. A power backplane is configured to deliver the power to the first surgical module and the second surgical module through the first surgical module. A control circuit is configured to adaptively adjust power allocations to the first surgical module and the second surgical module.

A system may include a robotic control circuit configured to control one or more robotic functions of a robot. A system may include a plurality of sensors configured to collect data. A system may include a governance analysis circuit configured to analyze the data and select one or more governance frameworks based on the analyzed data. A system may include a governance model circuit configured to generate a model that applies the one or more governance frameworks to determine one or more governance actions, wherein the robotic control circuit is configured to control the one or more robotic functions in accordance with the one or more governance actions, wherein the robotic control circuit, the governance analysis circuit, and the governance model circuit are integrated on a single substrate.

A battery pack includes a battery housing; a battery module disposed in the battery housing, where the battery module includes multiple battery cells, and at least one of the battery cells is a solid-state battery; and a control circuit disposed in the battery housing and configured to use the battery module to supply the electric power to the power tool. The energy W of the battery pack and the volume V1 of the battery pack satisfy the following: when the energy W is greater than or equal to 200 Wh, the volume V1 is less than or equal to 400 cm3; or when the energy W is greater than or equal to 300 Wh, the volume V1 is less than or equal to 800 cm3; or when the energy W is greater than or equal to 700 Wh, the volume V1 is less than or equal to 2500 cm3.

A loudspeaker device includes a speaker component, a first microphone element, and a second microphone element. The speaker component includes an earphone core and a core housing. The first microphone element is disposed on a first branch circuit board of a circuit board. The second microphone element is disposed on a second branch circuit board of the circuit board. The circuit board is configured to electrically connect to an audio signal wire, a first auxiliary signal wire, and a second auxiliary signal wire of an external control circuit. The audio signal wire, the first auxiliary signal wire, and the second auxiliary signal wire are electrically and respectively connected to the earphone core, the first microphone element, and the second microphone element through the circuit board. A board surface of the second branch circuit board is tilt with respect to a board surface of the first branch circuit board.

A checkout terminal is provided. The checkout terminal comprises a camera array, a display device, a weight scale, and a control circuit. The control circuit is configured to identify, based at least on images captured by the camera array, product identifiers associated with a plurality of different items placed in a placement area and on the weight scale, determine a combined weight of the plurality of different items based on product weight information stored in a product database, retrieve a weight measurement measured by the weight scale, detect for unaccounted items based on comparing the combined weight the plurality of different items and the weight measurement, and in the event that an unaccounted item is detected, display, via the display device, instructions to move one or more items to identify the unaccounted item.

The invention provides a new energy automobile control circuit board production process optimization control method and system, and relates to the technical field of production control, and the method comprises the steps: collecting production process parameters in real time, inputting the parameters into a process digital twin model, and obtaining process deviation data; and inputting the deviation data into a process parameter optimization model based on a deep reinforcement learning algorithm to generate an adjustment instruction, performing real-time parameter adjustment on the production line, and feeding back to a digital twinborn model to form closed-loop control. According to the invention, accurate monitoring and intelligent optimization of the production process can be realized, the production quality and the production efficiency of the circuit board are improved, and the rate of defective products is reduced.

A loudspeaker device includes a speaker component, a first microphone element, and a second microphone element. The speaker component includes an earphone core and a core housing. The first microphone element is disposed on a first branch circuit board of a circuit board. The second microphone element is disposed on a second branch circuit board of the circuit board. The circuit board is configured to electrically connect to an audio signal wire, a first auxiliary signal wire, and a second auxiliary signal wire of an external control circuit. The audio signal wire, the first auxiliary signal wire, and the second auxiliary signal wire are electrically and respectively connected to the earphone core, the first microphone element, and the second microphone element through the circuit board. A board surface of the second branch circuit board is tilt with respect to a board surface of the first branch circuit board.

The invention discloses a method for automatically adjusting a head wave detection voltage threshold value of an ultrasonic flowmeter, relates to the technical field of flow velocity measurement, and ensures that the ultrasonic flowmeter accurately identifies a head wave and measures the flow velocity under a complex working condition by dynamically detecting and adjusting the peak value of a received signal and a wave hopping phenomenon. The method comprises the following steps: S101, initializing a peak acquisition circuit, an adjustable potentiometer, a logic control circuit and a head wave trigger and zero-crossing control circuit of a system, and adjusting the gain of an amplifier; by dynamically monitoring the peak value of the ultrasonic receiving signal and adjusting the head wave triggering voltage threshold value, the accuracy of flow velocity measurement is remarkably improved, false triggering and missing triggering caused by a fixed threshold value are reduced, the measurement error is reduced, the measurement precision is improved, the head wave signal is reliably identified by an introduced front-back jump wave fine tuning mechanism, the measurement failure is prevented, and the accuracy of flow velocity measurement is improved. The ultrasonic flowmeter can stably work in a dynamically changing industrial environment, and the high-precision metering requirement is met.

Examples relate to vehicle battery systems comprising a base unit connectable to a vehicle's electrical system, a removable modular replaceable battery, and a secondary battery within the base unit. The base unit is configured to interchangeably use modular replaceable batteries of different chemistries. Control circuits optimize charging and discharging parameters based on battery chemistries. The secondary battery provides power when the modular battery is removed. The system includes thermal management, compatibility with lead-acid charging systems, and mobile base unit functionality. The modular battery can power external devices and can foreseeably store energy up to and beyond 1 kWh. The system operates at various voltages suitable for different vehicle types.

To provide a data storage device comprising a processing device, and a method.SOLUTION: Provided is a method implemented or performed when a read / write channel circuit of a control circuit of a disk drive controls operation of the disk drive. The method includes selecting a seek time model from a plurality of seek time models at least partially based on operation characteristics of an access command. The operation characteristics is related to the off-track sensitivity of executing the access command. The method also uses the selected seek time model to determine the access time for the access command and selects the next access command for execution based on the determined access time for the access command and the determined access time for the other access command among the plurality of access commands.SELECTED DRAWING: Figure 2C

The invention relates to an electronic musical instrument ensemble system and an electronic musical instrument playing guiding device. The electronic musical instrument ensemble system comprises an electric musical instrument serving as host equipment and an electric musical instrument serving as slave equipment. Each electric musical instrument is provided with an LED display screen used for indicating a user to activate a corresponding sound induction assembly, each LED display screen comprises a plurality of LED light bars, each LED light bar is formed by a plurality of LED beads which are sequentially arranged at equal intervals from top to bottom, and each LED display screen is electrically connected with a main control circuit board of the corresponding electric musical instrument. Through the electronic musical instrument ensemble system and the electronic musical instrument playing guiding device, a plurality of electronic musical instruments of the same kind or different kinds can be connected, one electronic musical instrument serves the host equipment and controls the LED display screens, used for playing instruction, of other slave equipment, and therefore the purpose of jointly playing the same melody is achieved.

The invention relates to the technical field of battery protection control, and discloses a battery charging protection method and system based on intelligent control and a storage medium. The method comprises the following steps: acquiring and calculating battery parameters to obtain a state value; constructing a neural network model based on the state value to output a charging parameter; generating a charging strategy according to the charging parameters; the charging strategy is input into the control circuit for execution; executing multi-stage safety protection to obtain a result; and updating neural network model optimization control parameters according to a result. According to the invention, the charging control model based on the back-propagation neural network is constructed, and the real-time battery state monitoring, the self-adaptive charging strategy generation, the multi-stage safety protection mechanism and the self-learning optimization function are combined, so that the precise control and the comprehensive protection of the battery charging process are realized, the service life of the battery is effectively prolonged, and the charging safety is improved.

A pixel circuit, a driving method thereof, and a display device. The pixel circuit includes a light emission time control circuit, a current control circuit, and a light emission circuit. The light emission time control circuit includes a first drive circuit, a coupling circuit, and a first voltage write circuit. The first voltage write circuit is configured to transmit a fixed voltage to a control terminal of the first drive circuit. The coupling circuit is connected to the control terminal of the first drive circuit. A first terminal of the first drive circuit outputs a control voltage to a control terminal of the current control circuit. An output of the current control circuit is connected to the light emission circuit.

A theater chair comprises a flip-up / flip-down seat, a reclining backrest, and a reclining seat. An actuator is operatively connected to the reclining backrest for moving the backrest and seat from a normal or default upright position to any one of a multitude of reclined positions. The flip-up / flip-down seat is provided with a spring for returning the seat to its upright position when the seat is unoccupied. A sensor is operatively associated with the seat so as to effectively monitor the orientation of the seat. When the seat is vacated, the sensor will detect movement of the seat and send an appropriate signal to a control circuit which is operatively connected to the actuator. After a predetermined period of time, the actuator will be actuated so as to return the backrest from the reclined position to the default upright position.

The invention provides a device and a method for extracting water from air operated under all working conditions. The device comprises a solar power supply unit, a salt-carrying hydrogel adsorption-desorption unit, an electric heating desorption unit, a water vapor condensation and collection unit and a PID control unit. The solar power supply system comprises a solar photovoltaic panel, an MPPT (maximum power point tracking) type photovoltaic inverter and a storage battery, the salt-carrying hydrogel adsorption-desorption unit comprises hydrophilic porous hydrogel and a LiCl / CaCl2 composite adsorption material, and the electric heating desorption unit comprises a copper heat-conducting plate loaded with the adsorption material and an electric heating sheet. The water vapor condensation and collection unit is composed of four finned radiators and two semiconductor chilling plates. The PID control unit is composed of a temperature and humidity sensor and a control circuit, wherein the temperature and humidity sensor is connected to the radiators and the front side of the adsorption bed. Water vapor in the environment is enriched through an efficient salt-loaded adsorbent packed bed, desorption is driven in two modes of solar photo-thermal and electric heating, desorbed high-humidity airflow passes through a fin type cooling fin connected with a semiconductor and then is condensed into liquid water, and the process of taking water from air is completed through a collector below. According to the device, low-energy-consumption air water taking under the humidity of 15%-100% can be achieved by controlling the operation time of all the units, the device is portable and compact, the automation degree is high, and high-water-yield air water taking is achieved by using solar photo-thermal and power generation as energy input.

The present disclosure discloses a loudspeaker apparatus. The loudspeaker apparatus comprises a core housing for accommodating the earphone core; a circuit housing for accommodating a control circuit that drives the earphone core to vibrate to generate a sound, wherein the sound includes at least two resonance peaks; an ear hook for connecting the core housing and the circuit housing; a key arranged at a keyhole on the circuit housing, wherein the key moves relative to the keyhole to generate a control signal for the control circuit; and an elastic pad arranged between the key and the keyhole, wherein the elastic pad hinders a movement of the key towards the keyhole. In the present disclosure, by providing an elastic pad between the key and the keyhole, the waterproof effect of the loudspeaker apparatus may be improved, and the space occupied by the key may be reduced.

Intraluminal ultrasound imaging devices, methods, and systems are provided. Some embodiments of the present disclosure include intraluminal devices configured to navigate and maneuver tortuous vasculature of a patient. For example, an intravascular imaging device can include a flexible support member at a distal portion of the imaging device. The flexible support member may support a plurality of ultrasound transducers and a plurality of control circuits. The flexible support member includes a flexible joint portion between a transducer portion and a controller portion. Introducing a flexible joint portion between the transducer portion and the controller portion can provide for greater flexibility of the imaging device and enable the device to navigate tortuous regions of a patients anatomy.

The invention provides a control circuit of an excitation fuse, the excitation fuse and electronic equipment. The excitation fuse comprises N excitation sources, at least one melt and multiple sections of conductors, a melt is connected between every two sections of conductors in the plurality of sections of conductors; m excitation sources in the N excitation sources are connected to the multiple sections of conductors so as to collect currents of the multiple sections of conductors; the control circuit of the excitation fuse comprises a main control module and an inspection module. The inspection module is connected with the main control module; the main control module outputs an inspection signal to the inspection module so as to control the inspection module to detect the N excitation sources; if the holding current is detected from the N excitation sources, determining that the N excitation sources are in a normal standby state; and otherwise, determining that the N excitation sources have faults, and outputting prompt information to prompt a user to carry out fault removal. Therefore, the state of the excitation source in the excitation fuse can be detected, the fault of the excitation source can be found in time, and the reliability of the excitation fuse is improved.

Techniques relating to processor communication structures are disclosed. In some embodiments, a processor includes a plurality of client circuits and a structure circuit including at least a first instance and a second instance of a tile. The tile may include a client input configured to interface with client circuitry, a tile input configured to interface with one or more other tile instances, and communication resources assignable to the client input and the tile input. The communication resources may include a plurality of internal links, a client output configured to interface with client circuitry, and a tile output configured to interface with one or more other tile instances. The control circuitry may assign communication resources for a given tile instance to the client input and at least a portion of the tile input for a next cycle based on priority information in a given cycle. The control circuit may update priority information based on the assignment result over a plurality of cycles.

The invention discloses a control circuit of an electronic load, the electronic load and a power supply test system. The circuit comprises an MCU; the signal output end of the MCU is connected with the input end of the DAC module; the closed-loop control circuit comprises a first error amplifier, a mutual inductor, an MOS (Metal Oxide Semiconductor) tube, a current sampling resistor and a power supply end VBUS; a mutual inductor is arranged between a first error amplifier and an MOS tube of the closed-loop control circuit, a power supply end VBUS is connected with a drain electrode of the MOS tube through a primary side of the mutual inductor, a first secondary side of the mutual inductor feeds back an input signal of the first error amplifier, and a second secondary side of the mutual inductor feeds back a driving signal of the first error amplifier to the MOS tube. According to the invention, the dynamic response speed when the electronic load pulls the high-frequency current can be improved, and the test requirements of high precision and high dynamic response are met.

The present disclosure provides a multiphase switching converter and control circuit thereof. The multiphase switching converter includes a plurality of control circuits forming a daisy chain architecture, and to generate a preparatory output signal and a switching control signal for controlling a corresponding switching circuit when receiving a clock signal from a communication bus in the preparatory state, the control circuit is configured to operate in a preparatory state when receiving a preparatory input signal. Only preparatory signals are transmitted between the plurality of control circuits, and a signal for controlling circuit being on is participated by the clock signal generated by a host controller, so that the host controller does not need to track a position of a current unit in real time during a control process of all units, thus greatly simplifying a design of the host controller and reducing a circuit cost.

A speaker device is provided. The speaker device may include a circuit housing, an ear hook, a rear hook, and a speaker assembly. The circuit housing may be configured to accommodate a control circuit or a battery. The ear hook may be connected to one end of the circuit housing and at least a part of the ear hook being covered by a first housing sheath. The rear hook may be connected to the other end of the circuit housing and at least a part of the rear hook being covered by a second housing sheath. The first housing sheath and the second housing sheath may cover at least a part of a periphery of the circuit housing from two ends of the circuit housing, respectively. The speaker assembly may include an earphone core and a core housing for accommodating the earphone core.

The present disclosure relates to a speaker device. The speaker device may include an ear hook, a core housing for accommodating an earphone core, and a circuit housing for accommodating a control circuit or a battery. The ear hook may include a first plug end and a second plug end. The ear hook may be surrounded by a protective sleeve which may be made of an elastic waterproof material. The ear hook may be elastic, and a position of the core housing relative to the ear hook may be changed according to an elastic deformation of the ear hook, thereby the core housing may fit a user in front of or behind an ear of the user. The circuit housing may be fixed to the second plug end. The control circuit or the battery may drive the earphone core to vibrate to generate a sound.

A nonvolatile memory device may include at least one memory block and a control circuit. The at least one memory block includes a plurality of cell strings that are divided into a plurality of sub-blocks arranged in the vertical direction, and each of the sub-blocks includes boundary word-lines adjacent to another sub-block and internal word-lines different from the boundary word-lines. The control circuit may be configured to control an erase operation by applying a pre-program voltage with a first individual bias condition sequentially to the internal word-lines and the at least one boundary word-line of at least one sub-block to be erased from among the plurality of sub-blocks during a pre-program period of an erase loop, and by applying an erase voltage to a channel of the at least one memory block during an erase execution period of the erase loop.

The invention discloses a power supply starting control circuit, a power supply starting control method and electronic equipment. The power supply starting control circuit comprises a first electric energy conversion circuit, a resonance circuit, a second electric energy conversion circuit and a main control circuit, the main control circuit is configured to obtain a resonance current signal and a power supply output signal in a second start-up stage, so that the resonance current signal is generated when the power supply output signal is not greater than the target reference voltage. Performing slope compensation on an adjustment output signal obtained by using a difference value between the power supply output signal and the target reference voltage by using the first slope compensation slope to obtain a first feedback adjustment signal, and generating a second control signal by using the first feedback adjustment signal and the resonant current signal; the target reference voltage is linearly increased in the second starting stage; the first electric energy conversion circuit receives the first control signal and the second control signal and adjusts the converted and output first alternating current signal by using the first control signal and the second control signal in sequence. By means of the mode, the power supply starting control circuit can effectively achieve smooth starting control.

The invention provides a multipath solid-state power controller detection device and method, and belongs to the technical field of integrated testing and fault diagnosis, and the device comprises an MCU control circuit module which is used for achieving the full-process automatic control and data analysis of the testing device; the load control module is used for controlling a load environment provided in a test process; the data acquisition circuit module is used for acquiring an SSPC channel, a switching value, a small voltage signal and a current signal; the power circuit module is used for providing power; the communication interface circuit module is used for communicating with the outside; and the display screen and key circuit module is used for man-machine interaction in the detection process. According to the detection device, SSPC all-condition performance verification is realized through multi-channel synchronous excitation, distributed data acquisition and dynamic loading; the core pain points of low test efficiency and difficult fault positioning of the multi-channel SSPC board card are solved.

The invention provides a COT step-down converter comprising an inductive current detection circuit configured to detect an inductive current flowing through an inductor connected to a system output of an output voltage of an output system of the COT step-down converter, and generate a current zero-crossing detection signal indicating whether the inductive current crosses zero, the inductive current zero-crossing means that the inductive current is changed from positive current to negative current; and a sleep mode control circuit configured to generate a sleep mode control signal for controlling one or more circuit modules in the COT buck converter to change from an operating state to a closed state based on the current zero-crossing detection signal, an output feedback voltage representing a system output voltage of the COT buck converter, and a predetermined reference voltage.