271 results about "Current consumption" patented technology

An electroactive lens with raised resistive bridges is disclosed. The resistive bridges can connect many ring electrodes in an electroactive lens with a relatively small number of bus lines. These resistors are typically large to prevent excessive current consumption. Typically, they are placed in the same plane as the ring electrodes, which means that the ring electrodes are further apart or made discontinuous to accommodate the resistors. But further separating the ring electrodes or making them discontinuous degrades the optical quality of the lens. Placing the ring electrodes and resistors on layers separated by an insulator allows the ring electrodes to be closer together and continuous and have a high enough resistance to limit current consumption. It also relaxes the constraints on feature size and placement during processing to make the lens. And because the resistors and electrodes are on different planes, they can be formed of materials with different resistivities.

A power management device for intelligently splitting and controlling a high power outlet is described. The device includes a housing, power input, outlets, power sensor, and a controller. The housing has an internal compartment configured to hold components of the device and an exterior surface. The device has a plurality of outlets on the exterior surface of the housing. Each outlet is configured to connect to an appliance. Each outlet has a power sensor configured to sense current draw and / or power use at the outlet. The controller of the device is contained within the internal compartment of the housing and monitors the usage of each outlet via readings from the power sensors. The controller determines, based on the monitored usage and appliance parameters, one or more outlets to provide current to, and causes current to be provided to the determined outlet(s).

Embodiments of the disclosure provide a system and method of operating a power tool. The method includes measuring a battery current draw, sampling the battery current draw to generate a plurality of battery current samples, calculating an averaged current value by averaging the plurality of battery current samples, and comparing the averaged current value with a predetermined current value. The method also includes determining a number of motor revolutions, comparing the number of motor revolutions to a startup threshold, and determining a cycle is complete and stopping the motor when the number of motor revolutions exceeds the startup threshold and the averaged current value is greater than the predetermined current value.

A vehicle seat air-conditioning device includes: a blower that is included in a seat; at least one of an inlet duct or an outlet duct, the inlet duct being a duct through which air is led to be drawn in from a surface of the seat by the blower, and the outlet duct being a duct through which the air led by the blower is discharged from a surface of the seat; and a controller that is electrically connected to the blower. The blower includes a current detection circuit that detects a current consumption of the blower. The controller determines whether an occupant is sitting on the seat, based on the current consumption detected by the current detection circuit.

The present invention presents a method for quickly transmitting and receiving pen Tx and Rx signals by reconfiguring a CDA column consisting of a large number of CDAs into a CDA column consisting of one CDA, and reducing the time of the process by detecting objects by quick search with the same CDA column, thereby preventing loss of signals that may occur in Tx / Rx with the pen and reducing current consumption.

The invention relates to the field of motors, and discloses a voice coil motor with a magnetic gravity compensation structure, comprising a rotor unit and a stator unit, the stator unit slidably sleeves the rotor unit, the rotor unit comprises a coil assembly, the rotor unit comprises a first gravity compensation magnet and a second gravity compensation magnet, the first gravity compensation magnet and the second gravity compensation magnet are located above and below the coil assembly respectively, the stator unit comprises a stator magnet assembly, the stator magnet assembly comprises an upper surface magnet and a lower surface magnet which are distributed up and down, and the first gravity compensation magnet and the upper surface magnet repel each other. And the second gravity compensation magnet and the lower surface magnet are mutually exclusive to constantly compensate the gravity of the mover unit, so that the mover unit is suspended, the gravity compensation linearity is good, the rigidity is high, the current consumption is reduced, the heating is reduced, the precision error caused by thermal expansion is avoided, the structure is simple and compact, the assembly is convenient, and the production cost is low.

To suppress current consumption of a processor from exceeding an upper limit when each of a plurality of cores variably controls a clock frequency and a power supply voltage.SOLUTION: In a processor comprising a plurality of cores including floating-point units, a frequency / voltage control unit provided corresponding to each core supplies the corresponding core with a clock having a variable frequency and a power-supply voltage having a variable voltage. An instruction issuance control unit provided in each core controls the issuance of floating-point operation instructions to the floating-point unit, and reduces the issuance frequency of floating-point operation instructions to the floating-point unit when the current frequency value is greater than a reference frequency value or when the current power-supply voltage value is greater than a reference power-supply voltage value. This makes it possible to prevent the current consumption of the processor from exceeding an upper limit.SELECTED DRAWING: Figure 2

In some implementations, a memory device may receive, from a host device, a host configuration that includes an indication of a set of thermal throttling threshold values, wherein the set of thermal throttling threshold values are from a list of sets of valid thermal throttling threshold values. The memory device may send, to the host device, an indication of a set of maximum current consumption values for the memory device, wherein the set of maximum current consumption values is based on the host configuration. The memory device may apply a thermal throttling based on the host configuration.

The invention relates to the technical field of new energy automobiles, in particular to a low-voltage battery charging method and system, a controller and an automobile. In the silent state of the automobile, a VCU control system accurately closes unnecessary peripherals through a low-power-consumption monitoring mode, only basic power supply of a communication module is maintained, and the power consumption of the VCU control system is reduced; quiescent current consumption is obviously reduced to delay the self-discharge rate of the low-voltage storage battery; when it is detected that the voltage of the low-voltage battery is lower than a threshold value, the system automatically activates the high-voltage power battery to conduct directional charging on the low-voltage system, service life attenuation caused by over-discharge of the low-voltage storage battery is avoided, and it is ensured that a key control module of the vehicle always has basic working electric energy; through sequential control of the preset charging period, excessive energy consumption of the high-voltage battery is prevented while charging sufficiency is guaranteed, dynamic energy balance of the high-voltage-low-voltage battery pack is formed, and the reliability of a new energy automobile in a long-term parking scene and the use convenience of a user are remarkably improved.

Current surge is managed by estimating the current demand based on the actual instructions being executed and then adjusting the clock for the static schedule. For statically scheduled instructions, the compute elements synchronously execute the instructions according to the static schedule. The synchronization is provided by a common clock that is used to clock the instruction execution by the compute elements. As instructions are being executed, their current consumption may be estimated based on the type of instruction. The current consumptions for the instructions executed by the compute elements may be aggregated, providing an estimate of the aggregate current demand. This can then be used to adjust the clock accordingly.

A method switches off an electrical consumer in a vehicle, which is connected to a supply line provided with an electronic switch. The method includes: monitoring a current consumption of the consumer in a monitoring mode with respect to a safety switch-off threshold, and when the switch-off threshold is exceeded or fallen short of, switching off the electronic switch, switching a main monitoring unit from the standby mode to the monitoring mode when an amplitude of a dynamic change of the current consumption of the consumer reaches or exceeds a first threshold value, and monitoring the current consumption of the consumer in the standby mode by an auxiliary monitoring unit, and when the first threshold value is reached or exceeded, triggering the switching of the main monitoring unit from the standby mode to the monitoring mode.

The utility model belongs to the technical field of vacuum drying, and relates to a resonance deflection instrument which comprises a resonance shaft, a lens and a driving assembly, the lens is arranged on the resonance shaft, and the driving assembly is used for driving the resonance shaft so that the resonance shaft can drive the lens to deflect; wherein the driving assembly comprises a shell, a magnet, a coil and a stator, the magnet, the coil and the stator are arranged in the shell, the stator is sleeved with the magnet, the coil is arranged on the magnet, the resonance shaft is connected with the stator, and the resonance shaft is flexibly fixed to the shell through a flexible part. The resonance shaft is flexibly fixed on the shell through the flexible part, the structure is simple and compact, compared with a mechanical matching mode directly adopted in the prior art, the flexible fixing mode can prevent generated resonance from being absorbed by the shell and the stator, resonance can be transmitted to the lens through the resonance shaft, current consumption and heat productivity are reduced, and the service life of the lens is prolonged. The response speed and the deflection frequency of the resonance deflection instrument are remarkably improved, rapid and accurate optical path adjustment can be achieved, and the long-term stability is improved.

The application discloses a mover motion control method and device, equipment and storage medium, and relates to the technical field of magnetic suspension. The method comprises the following steps: a mover motion model is established according to Newton's second law; a state space equation is determined according to the mover motion model and preset state variables; the preset state variables comprise the position of the mover and the speed of the mover; the state space equation is subjected to discretization processing to obtain a mover motion model in a discrete space; the mover motion result at each prediction time is determined according to a preset prediction step and the mover motion model in the discrete space; a cost function is determined according to the mover motion result at each prediction time; the cost function is used for representing the position deviation of the mover and / or the current consumption; the cost function is subjected to optimization processing to obtain a current output value, and the mover motion is controlled according to the current output value. Therefore, the technical problem that the control of the motor has relatively low efficiency in the related art can be solved.

This invention proposes a hysteresis compensation control method for high-speed switching valves based on PWM, belonging to the field of high-speed switching valve control. Its key feature is that the working cycle of the high-speed switching valve is divided into four stages. The rising and falling edges of the reference PWM control the opening and closing times of the high-speed switching valve, while the loading signal consists of on-compensation PWM, excitation PWM, opening-hold PWM, and closing compensation PWM. By varying the pressure before the valve, the critical voltage values ​​for opening and closing the valve core are obtained, thereby controlling the amplitudes of the on-compensation PWM and opening-hold PWM to reduce the hysteresis time and current consumption of the valve core response. The duty cycle of the excitation PWM is determined by the derivative of the pressure before the valve, and the duty cycles of the on-compensation PWM and closing compensation PWM are obtained based on the coil current, accelerating the valve core response speed and optimizing current consumption. This invention can improve the response speed of high-speed switching valves, reduce energy consumption, and expand the frequency response range, offering advantages such as high response, low power consumption, low cost, and small footprint.

A sensor, including: a gradiometer including a plurality of magnetoresistors, the gradiometer being configured to generate a sensing signal in response to a magnetic field that is at least in part produced as a result of an electrical current flowing through a conductor; and electronic circuitry configured to detect an electrical current consumption of the gradiometer, compare the electrical current consumption against at least one of a first threshold and a second threshold, and output an indication that the sensor is subject to tampering based on an outcome of the comparison.

A reception apparatus includes a reception circuit configured to receive reception signals, and a control circuit configured to control the reception signals to be input to the reception circuit by executing a feedback control according to a current consumption of the reception circuit.

Dynamic current scaling of regulators is disclosed. A method and apparatus for performing dynamic current scaling of input current of a voltage regulator is provided. The method and apparatus allow for regulating current consumption in various applications, calculating duration of active phases in which various algorithms are performed, and activating dynamic current scaling of the regulator if the active duration is shorter than a programmable threshold. A controller receives a threshold of active duration and a window size for evaluating the active duration.

Land maintenance system, the system comprising at least one mobile device (2) configured to perform maintenance work within a work area (1), and a control unit (50) configured to perform at least one diagnostic monitoring sequence of the at least one mobile device (2), the diagnostic monitoring sequence comprising the following steps: - Receiving at least one diagnostic parameter from the mobile device (2) that is representative of at least one service or operational status of the mobile device (2), - wireless transmission of at least one diagnostic parameter together with at least one identification parameter of the mobile device (2) to a remote infrastructure, - Comparing the diagnostic parameter with a respective predefined value or interval, - if at least one diagnostic parameter differs from the predefined value or is outside the predefined interval, suggest to an affected user or execute, after confirmation by an affected user, at least one technical assistance program for the mobile device (2), wherein the identification parameter is a unique code or serial number that is representative of the mobile device (2) transmitting the identification partner, wherein the system comprises a plurality of mobile devices configured to perform maintenance work in respective work areas, wherein the control unit (50) is configured to individually perform a diagnostic monitoring procedure for each mobile device of the plurality, wherein the technical assistance program of the mobile device (2) includes the step of identifying, starting from the at least one diagnostic parameter, at least one component of the mobile device (2) that is in a state of actual failure or malfunction or is susceptible to incipient failure or malfunction, wherein the remote infrastructure includes at least one storage device configured to store the following: - at least one of the predefined value and the predefined interval, and - at least one mapping rule between the diagnostic parameter and at least one technical assistance program, and wherein the diagnostic parameter includes at least one value which is in particular acquired or obtained or estimated in real time and is representative of an operating condition of an on-board battery of the mobile device (2) and / or of an electrical current draw from the on-board battery under a predefined condition.

An oscillation circuit (1) according to the invention comprises a Pearl circuit (2) and a Colpitz circuit (3) sharing an oscillator (X1) and an input portion of an amplifier (A1, A2). Switches (SW1, SW2) connected between the output portions of the respective amplifiers (A1, A2) of the Pearl circuit (2) and the Copitz circuit and the ground are controlled to output an oscillation signal of the Pearl circuit (2) during an oscillation start-up period and to output an oscillation signal of the Copitz circuit (3) during a stable oscillation period. According to the invention, the oscillation circuit can realize high-speed starting and low current consumption.

To provide a technique for inspecting operations of components assembled into an electrically assisted bicycle with space savings and a simple facility.SOLUTION: An inspection system 1 comprises a DC power supply 2, a strain sensor 6, a signal transceiver 7, and a determinative PC 8. Since, in the inspection system 1, the signal transceiver 7 performs outputting a control signal to the strain sensor and receiving a reaction value of the strain sensor corresponding thereto from a primary substrate, which are performed by a control circuit inside an auxiliary power unit in an electrically assisted bicycle, the control circuit inside the auxiliary power unit (auxiliary power unit equivalent to the actual machine) becomes unnecessary, and thus an exclusive battery equivalent to the actual machine which supplies power to the auxiliary power unit becomes unnecessary. The signal transceiver 7 generates a control signal to transmit it to suitable parts, and allows the strain sensor 6 to respond, whereby operations of the primary substrate B1 and a secondary substrate B2 can be inspected in a state that the maximum consumption current of the strain sensor in the auxiliary power unit is simulatively reproduced, and a surrounding state is simulatively reproduced.SELECTED DRAWING: Figure 1

This disclosure relates to a charging control method, apparatus, and storage medium, and pertains to the field of battery charging technology. The method includes: determining a charging current corresponding to a first preset charging method when it is determined that a first preset charging method will be used to charge the battery; obtaining a compensation current for a second preset charging method corresponding to the charging current based on the target system's current consumption; charging the battery using the first preset charging method with the charging current, and then charging the battery using the second preset charging method with the compensation current. By adding a second preset charging method during the charging process using the first preset charging method, and performing current compensation during charging, the low charging efficiency or heat generation problems caused by charging solely using the first preset charging method are resolved, ensuring that the battery charging efficiency is not affected.

A method for controlling overpressure in a powered oral care implement having a treatment head with at least one functional element driven by a motor. The method includes: detecting a stimulus energizing the motor; setting a baseline current; and repeatedly executing an overvoltage detection control loop, the loop including: measuring an instantaneous current draw of the motor; adding the increment value to the baseline current or subtracting the decrement value from the baseline current, thereby generating a dynamically adjusted baseline current; determining whether the difference between the instantaneous current draw and the dynamically adjusted baseline current exceeds a threshold, thereby detecting the occurrence of an overvoltage; and taking a corrective action in response to the detected occurrence of the overvoltage.

This disclosure discloses a display driver device in which the power consumption of a chip is optimized by controlling each output channel of the chip. The display driver device includes a current consumption control circuit for each output channel. The current consumption control circuit is configured to selectively provide a control current with a high current quantity to drive the output voltage at the output terminal of an output buffer in response to a pattern variation having a large difference between the input voltage and the output voltage.

The present disclosure relates to electronic protection systems and controls. A protection IC protects an external load connected to a mains supply line from dangerous or undesirable conditions such as overvoltage, undervoltage, and overcurrent by disconnecting the external load for at least the duration of such conditions. The IC has a range detector, a zero-crossing detector, a control unit, a switch driver, and a dummy DAC. The range detector senses the presence of an unwanted condition. The control unit then waits for a zero-crossing, at which time the load is disconnected. A lock timer can introduce a minimum wait time before reconnecting the load. To prevent instability around the switching point, hysteresis in the window threshold prevents the effects of noise. The dummy DAC regulates a dummy current, which linearizes the IC current consumption around the switching point to prevent instability caused by positive feedback in the non-linear transition.

This vehicle-mounted power supply system (1) comprises a power supply device (10) that supplies power, a power reception device (50) that receives the power supplied from the power supply device (10), and a cable (80) that connects the power supply device (10) and the power reception device (50). The power supply device (10) superimposes and transmits a data signal and the power via the cable (80) to the power reception device (50). Furthermore, the power supply device (10) has: a power supply input unit (21) to which the power is input from the outside; a power path (22) provided between the power supply input unit (21) and the cable (80); and a current detection unit (25) that detects the current flowing through the power path (22). The power supply device (10) identifies the current consumption or the power consumption of the power reception device (50) on the basis of the detection result of the current detection unit (25), and determines an abnormality of the power reception device (50) on the basis of the identified value.

This application belongs to the field of semiconductor technology and provides a gallium nitride IGBT device with a body diode, its fabrication method, and a chip. The gallium nitride IGBT device with a body diode includes: a P-type gallium nitride collector region, an N-type gallium nitride layer, a P-type gallium nitride layer, a gate dielectric layer, a gate, a first N-type emitter region, a Schottky metal region, an isolation region, a first emitter, a second emitter, and a collector. By disposing the Schottky metal region within the P-type and N-type gallium nitride layers, when the gallium nitride IGBT device is operating, the Schottky metal region can form the body diode of the gallium nitride IGBT device. When the gallium nitride IGBT device is turned off, the body diode formed by the Schottky metal region can dissipate the residual current of the gallium nitride IGBT device, i.e., cut off its tail current, thereby reducing the power consumption of the gallium nitride IGBT device during turn-off and improving the performance of the gallium nitride IGBT device.

A motorized hand tool, such as a cordless ratchet wrench, that has a motor, one or more electronic components and / or integrated circuits, and a step-up converter that are housed or disposed in a housing of the tool. The step-up converter is adapted to prevent a voltage of a battery of the tool from dropping below a threshold voltage of a component or integrated circuit when current draw from the battery increases, thus preventing a “brownout” condition.

To provide a trigger switch capable of suppressing generation of unintended consumption current due to vibration, impact or the like generated during transportation, movement or the like.SOLUTION: The trigger switch 10 includes a trigger 10a, a brush 15d, a detector 16aa, a sensor 15e, a trigger position detector 18, and a controller 19. The brush 15d is provided integrally with the trigger 10a. The sensor unit 15e detects the operation amount of the pressing operation on the trigger 10a. The trigger position detection unit 18 detects the position of the trigger 10a. When the detection unit 16aa detects the movement of the brush 15d, the control unit 19 transitions to the activated state, and when the trigger position detection unit 18 detects that the trigger 10a has returned to the initial position after the pushing operation, the control unit 19 maintains the activated state for a predetermined time in a case where it is detected that the operation amount detected by the sensor unit 15e is equal to or greater than a predetermined value.SELECTED DRAWING: Figure 5

A battery management device according to an embodiment of the present application includes a voltage measurement unit for measuring a voltage of a battery at each of preset voltage measurement periods, a communication unit for outputting voltage information about the voltage measured by means of the voltage measurement unit at each of preset communication periods, a power supply unit for supplying a running power source to the communication unit when the communication unit is running, an environmental information measurement unit for measuring environmental information including a temperature and / or humidity in the vicinity of the power supply unit, and a control unit for receiving the measured environmental information from the environmental information measurement unit, judging whether the power supply unit is runnable based on at least one of the received environmental information, a capacity of the power supply unit, and a current consumption required for the communication unit to output the voltage information and a communication time, and controlling a running of the communication unit according to a result of the judgment about whether the power supply unit is runnable.

For tuning a vibrating conveyor with an electric vibrator unit (4) driving a vibrating element (5) connected with a conveying unit (3) of the vibrating conveyor (1) so that the conveying unit (3) is oscillated to a mechanical resonance frequency f R of the vibrating conveyor (1), it is provided that the electric drive unit (10) changes the frequency f V of the alternating drive voltage (u V ) in a given frequency range, that the current consumption of the electric vibrator unit (4) is measured at different applied frequencies f V of the alternating drive voltage (u V ) and that the electric drive unit (10) uses the frequency f V with the lowest current consumption of the electric vibrator unit (4) as the frequency f V of the alternating drive voltage (u V ) to operate the vibrating conveyor (1).