107 results about "Supply current" patented technology

The application relates to a high-precision addressable ring oscillator test chip, method, device and medium, which comprises an addressing module, an output module and a plurality of ring oscillator test modules; the ring oscillator test module comprises a signal transmission module, a multifunctional test module and a plurality of ring oscillator test structures; the addressing module is used for selecting a ring oscillator test structure from the ring oscillator test structures of the plurality of ring oscillator test modules to perform a communication test; the multifunctional test module can switch the voltage compensation mode or the small-current test mode of the ring oscillator test structure based on a received control signal; when the characteristic parameters of the ring oscillator are measured, the voltage compensation mode can utilize voltage drop compensation to reduce the influence of the resistance voltage drop introduced in the test path, effectively improving the measurement precision, and the small-current test mode can effectively measure the static power supply current of the ring oscillator.

This application discloses a method, apparatus, storage medium, and product for controlling the current of a charge-and-discharge power supply. The method includes acquiring a target adjustment command, which includes a target current increment. This target current increment is the difference between a first preset current and a second preset current. The first preset current is the target current of the previous adjustment cycle, and the second preset current is the target current of the current adjustment cycle. The method also includes acquiring a voltage increment based on multiple target parameters and the target current increment. These multiple target parameters include the battery electromotive force, battery internal resistance, and line impedance of the charge-and-discharge power supply when it was in a stable state in the previous adjustment cycle. Finally, the method includes acquiring an adjustment amount based on the voltage increment and adjusting the output current of the charge-and-discharge power supply based on the adjustment amount. This method can improve the response speed while ensuring the stability of the output current of the charge-and-discharge power supply.

This invention discloses a method for determining the power state of a battery (B) of an electric vehicle (V). The state of charge (SOC), temperature (T), voltage (V) supplied by the battery, and current (I) supplied by the battery are sensed. A first predicted power limit formula (I) is calculated as a function of the SOC, temperature, supplied voltage, and supplied current. The first predicted power limit is calculated for a first time interval having a duration greater than 1 second and is equal to the voltage (V) of the battery if it is continuously supplied or absorbed by the battery during the first time interval. Cell ) respectively reach the minimum limit value (V) min The power of the battery is calculated as a function of state of charge, temperature, voltage supplied, and current supplied. The second predicted power limit is calculated using formula (II) for the second time interval having a duration of less than 1 second, and is equal to the power that would cause the battery voltage to reach its minimum or maximum limit if continuously supplied or absorbed by the battery during the second time interval. The power (P) instantaneously supplied or absorbed by the battery is sensed. Bat Alternatively, it can be calculated as a function of the supplied voltage and the supplied current. In response to (C2) the power supplied or absorbed by the battery instantaneously being lower than the first predicted power limit, the value of the actual power limit formula (I) is set (41) to the current value of the first predicted power limit formula (I). In response to (C1) the power supplied or absorbed by the battery instantaneously reaching the first predicted power limit, the value of the actual power limit is set (42) to the minimum value selected between: (a) the instantaneous value of the first predicted power limit at the time (t1) when the power supplied or absorbed by the battery instantaneously reaches the first predicted power limit, and (b) the current value of the second predicted power limit.

This application provides a battery cell, a battery device, and an electrical device. The battery cell includes a casing, an electrode assembly, and electrode terminals. The casing includes a casing wall and a receiving cavity. The electrode assembly is disposed within the receiving cavity and includes an electrode body and a tab connected to the electrode body. The electrode terminals are disposed on the casing wall and connected to the tabs. Each electrode terminal includes a main body and a heat dissipation portion. The heat dissipation portion is at least located on one side of the main body along a first direction and includes a concave-convex structure. The electrode terminals can supply current to the electrode assembly or supply current from the electrode assembly to the outside. The electrode terminals include a main body and a heat dissipation portion. The main body can dissipate heat, and the heat dissipation portion can enhance the heat dissipation effect. The heat dissipation portion includes a concave-convex structure, which can improve heat conduction efficiency, reduce the temperature of the electrode terminals, thereby improving the heat dissipation capacity of the electrode terminals and enhancing the stability and service life of the battery cell.

This utility model discloses a magnetic ring inductive power current monitoring device for unmanned aerial vehicles (UAVs). It includes a magnetic ring sensor body with a through-hole and a PCB connected to the magnetic ring sensor body. The PCB includes a voltage conversion module, a magnetic induction sensor module, a microcontroller module, and a debugging interface module. Through the cooperation of these modules on the PCB, the magnetic ring sensor body can detect the real-time current value of the cable passing through the through-hole. This utility model solves the problem that the resistance-based overcurrent detection method used in existing technologies easily leads to power outages in the entire UAV power supply system.

An electric charging system that connects an electric charging device (12) and an electric vehicle (11) via a charging cable (14) and charges an electric storage device (13) installed in the electric vehicle (11), wherein the electric charging system comprises: - a supply-side processing unit (33, 48) for calculating supply-side processed data by applying a predetermined filtering process at a supply voltage (Vs), a supply current (Is) or a supply power in the electric charging device (12); - a receiving-side processing unit (33, 48) for calculating receiving-side processed data by applying a predetermined filtering process at a receiving voltage (Vr), a receiving current (Ir) or a receiving power (Wr) in the electric vehicle (11);- a feature point assignment unit (33, 48) for assigning a feature point to the input-side processed data by changing at least one parameter from the input voltage (Vs), the input current (Is), the input voltage (Vr) and the input current (Ir); - a data synchronization unit (33, 48) for synchronizing the input-side processed data and the input-side processed data based on the feature point of the input-side processed data and the input-side processed data; and - a determination unit (33, 48) for determining whether a line condition between the electric charging device (12) and the electric vehicle (11) is normal or not.

This invention provides a pulse therapy system capable of rapidly controlling the output of pulsed current. [Solution] The pulse therapy system 1A comprises an intra-root canal electrode 30A placed on the affected area of ​​the subject, a counter electrode 40 placed on the subject's body, a pulse current generation unit 12 that generates a pulse current from a DC power supply unit 11 and supplies it to the intra-root canal electrode 30A and the counter electrode 40, a power supply current monitoring unit 14 that monitors the current value of the current supplied to the pulse current generation unit 12, and a control unit 15 that changes the output of the pulse current by controlling the pulse current generation unit 12 based on the current value.

The invention relates to a method for controlling a kneading household appliance (1) depending on a determination regarding an employed work tool (2a, 2b, 2c), comprising: - a step of defining a desired work tool (2a, 2b, 2c); - a step of deducing a fundamental frequency (Ff) depending on the desired work tool (2a, 2b, 2c); - a step of attaching an employed work tool (2a, 2b, 2c); - a step of causing the kneading household appliance (1) to operate; - a step of reading a supply current (C) of a main motor; - a step of determining an amplitude (A) of a Fourier transform of the supply current (C) for the fundamental frequency (Ff); - a step of comparing the amplitude (A) with a comparison criterion; - a step of controlling the kneading household appliance (1) depending on the comparison step.

A linear voltage regulator with isolated supply current is disclosed. The voltage regulator is configured and controlled such that its output current closely matches its input current (any quiescent current consumed by the regulator is negligible relative to the amount of current passed by the regulator). In some embodiments, the voltage regulator is implemented as an analog component. In other embodiments, the voltage regulator includes or cooperates with digital elements such as an analog-to-digital converter, a digital processing core, or a digital-to-analog converter.

This invention provides a press forming control device, a press forming control method, and a press forming control program that can prevent line misalignment in press forming by utilizing electromagnets. [Solution] A press forming control device comprising a press die containing an electromagnet and a control unit that controls the energization of the electromagnet, wherein one or more electromagnets are arranged in the press die at locations corresponding to the processing shape of the workpiece, and the control unit comprises a prediction unit that performs a simulation of press processing of the workpiece using the press die and predicts the positional displacement of the workpiece when the press die presses and forms the workpiece, and an excitation control unit that, after the workpiece comes into contact with a protrusion of the press die, supplies current to the electromagnet built into the press die to excite it and attract the workpiece to the press die.

A driver circuit includes a primary driver sub-circuit, a comparator sub-circuit and an auxiliary driver sub-circuit. The primary driver sub-circuit is configured to (i) generate an output voltage, and (ii) supply a predetermined maximum amount of current from a power source to a load via a first switch. The comparator sub-circuit is configured to (i) detect when a high-power dissipation condition exists which could lead to overheating the primary driver sub-circuit, and (ii) based on detection of the condition, generate a first output signal. The auxiliary driver sub-circuit is configured to, based on the first output signal, transition between (i) pulling-up the output voltage to the source voltage and supplying current from the power source to the load, and (ii) decreasing an amount of current being supplied to the load.

The present application relates to the technical field of Internet of Vehicles, in particular to a vehicle behavior data processing method and system based on Internet of Vehicles and a computer device. Through comprehensive analysis of power charging and discharging efficiency, transient response and current transient response speed, the monitoring and evaluation capability of power health status can be significantly improved. By judging whether the current transient response speed is less than a preset value and selecting the power current transient response time or the power voltage transient response time according to the judgment result to obtain the vehicle-mounted power health evaluation result, the evaluation of the vehicle-mounted power health status is more comprehensive by considering the transient response characteristics of current and voltage at the same time. The response characteristics of current and voltage are different, and comprehensive analysis can more deeply reveal the health status of the power supply, thereby not only improving the accuracy and comprehensiveness of power health evaluation, but also improving the real-time reaction capability and fault warning capability of the system.

A power tool can include a housing. The power tool can include an electric motor. The power tool can include a printed circuit board assembly configured to supply current to the electric motor. The power tool can include an output unit operably coupled to the electric motor. The power tool can include a tool terminal block supported by the housing and including a tool terminal configured to electrically couple to a battery pack. The power tool can include a busbar extending between the tool terminal and the printed circuit board assembly and electrically connecting the tool terminal to the printed circuit board assembly, wherein a portion of the busbar defines the tool terminal.

This application relates to the field of electronic circuit technology, providing a current-steering charge pump circuit and a charge pump phase-locked loop. The current-steering charge pump circuit includes: a reference current mirror connected to the analog circuit's positive power supply, current source, first switch, and the non-inverting input of the first rail-to-rail operational amplifier; a discharge current mirror connected to the first switch, the output of the first rail-to-rail operational amplifier, a second switch, a fifth switch, a seventh switch, and analog ground; a charging current mirror connected to the analog circuit's positive power supply, a third switch, a fourth switch, a sixth switch, and the output of the second rail-to-rail operational amplifier; a third switch connected to the second switch and the non-inverting input of the second rail-to-rail operational amplifier; and a fourth switch connected to the fifth switch and the output of the third rail-to-rail operational amplifier. This circuit can increase the output voltage swing while ensuring that the charging and discharging currents are equal.

This invention discloses a gate ESD protection circuit for monolithic GaN devices, comprising an optocoupler switching network consisting of several resistors and transistor optocouplers, a GaN power device, and a low-resistance bleeder branch. The low-resistance bleeder branch is connected to the power supply / ESD current source via a Zener diode, providing an ESD current discharge path in the early stages of an ESD event. This compensates for the shortcomings of the transistor optocoupler not being fully open in the early stages of an ESD event and the relatively weak bleedering capability of the GaN power device. After the GaN power device's gate turn-on voltage stabilizes, it assumes the primary bleedering responsibility, ensuring a sufficiently strong ESD current discharge capability when ESD stress is applied to the gate of the protected device. Simultaneously, the presence of the low-resistance bleeder branch enables the protection circuit to react rapidly in the early stages of an ESD event, addressing the problem of poor gate ESD robustness in enhancement-mode GaN devices.

The invention relates to an electrically operated civil engineering machine and to a method for electrically operating the civil engineering machine, having a mobile carrier device, at least one electrical consumption unit, at least one supply device by means of which electric current is supplied from an external energy source, which supplies electric current in alternating voltage with a first frequency and a first voltage value, the supply device having a first supply unit, which is arranged remote from the mobile carrier device and is connected to the external energy source, and having a second supply unit, which is arranged on the carrier device and is connected to the first supply unit via a connecting line for transmitting electric current. According to the invention, it is provided that the first supply unit has a frequency converter, which converts a frequency of the alternating voltage of the supplied current to a second frequency that is higher than the first frequency, and a first transformer, which increases the alternating voltage to a second voltage value, and that the electric current is transmitted from the first supply unit via the connecting line to the second supply unit on the carrier device with the second frequency and the second voltage.

The utility model discloses a solenoid valve fault detection device, wet membrane system and cooling unit, wherein, solenoid valve fault detection device includes: at least one current detection unit, and each current detection unit is configured to generate current detection signal according to the power supply current of one solenoid valve, wherein, current detection signal is greater than the power supply current, at least one prompting unit, and each prompting unit is connected with one current detection unit, and each prompting unit is configured to issue the prompt message in the case where corresponding current detection signal is greater than or equal to the preset current value, wherein, prompt message is used to show that corresponding solenoid valve works normally. The device detects and amplifies the power supply current of each solenoid valve through the current detection unit, obtains the current detection signal, and generates the prompt message according to the current detection signal through the prompting unit, so as to show the working state of the solenoid valve by the prompt message, and realizes the timely feedback of solenoid valve fault.

The present invention relates to a magnetic sensor apparatus comprising at least one measurement bridge (10) having magnetoresistive elements (R1 to R4), at least one line component (18), by supplying current to which a magnetic field that varies a particular orientation of a polarity (12) of the free layers can be induced, and an operating device (20) by means of which, when the magnetic sensor apparatus is in a constant orientation mode into which the magnetic sensor apparatus can be transferred and / or in which the magnetic sensor apparatus can be held by supplying direct current to the at least one line component (18), a first differential voltage value between two positions of the measurement bridge (10) can be ascertained and / or, when the magnetic sensor apparatus is in an alternating orientation mode into which the magnetic sensor apparatus can be transferred and / or in which the magnetic sensor apparatus can be held by supplying alternating current to the at least one line component (18), a second differential voltage value between the two positions of the measurement bridge (10) can be ascertained, wherein additionally at least an amount of a difference between the second differential voltage value and the first differential voltage value can be ascertained by means of the operating device (20), and an offset value and / or a desired mode of the magnetic sensor apparatus can be determined by the operating device (20) using at least the ascertained amount.

A monitoring device (308) for monitoring the opening and closing status of an electrical circuit is disclosed. The device (308) includes a first connection terminal (T1) and a second connection terminal (T2) connected to the electrical circuit, a current generator (301) that provides a non-zero reference current (Igen) when a voltage greater than a predetermined minimum voltage Vmin exists across its terminals, and provides zero current when a voltage less than the predetermined minimum voltage Vmin exists across its terminals, at least one optical isolator device (308, 605, 613) including a lighting device (305, 603, 612) and respective photosensitive semiconductor elements (307, 604, 611), and a current detection and power supply module (304) that detects the current flowing through it, providing power current to the lighting device (305, 603, 612) when the detected current is equal to or greater than the reference current (Igen), and providing zero power current to the lighting device (305, 603, 612) when the detected current is less than the reference current (Igen). The photosensitive semiconductor elements (307, 604, 611) present a first state when the lighting devices (305, 603, 612) are off, indicating that the electrical circuit is open, and present a second state when the lighting devices (305, 603, 612) are on. The electrical circuit is also described.

This application discloses an RF voltage balancing circuit, a filter, a chuck, and a semiconductor device. The RF voltage balancing circuit is used in a semiconductor device including a power supply and powered components. The powered components include a chuck, an upper electrode, an edge ring, and / or a temperature control link. The RF voltage balancing circuit includes at least two power supply loops and at least one filter circuit. Each power supply loop includes two power supply links. Each power supply link connects a powered component to the power supply, so that the power supply supplies power to the powered component via the power supply loop. The powered component is coupled with an RF signal. Each filter circuit allows the RF signal to pass through while blocking the power supply current, which is the current supplied by the power supply to the powered component via the power supply link. At least two of the at least two power supply loops satisfy the condition that at least one filter circuit is connected between the two power supply loops. This application can reduce RF losses and improve the efficiency and quality of semiconductor processes.

This invention discloses a voice recognition-based intelligent door and window control method and system, relating to the field of voice recognition technology. The method includes the following steps: S1: voice command parsing and load change feature acquisition; S2: calculation of vibration spectrum energy distribution of the transmission system; S3: prediction of electromechanical coupling risk and generation of compensation amount, comparing the load current acceleration parameters with a preset threshold, calculating the slope of the difference between the spectrum energy entropy value and the previous cycle, and when the risk condition is met, generating a time delay compensation amount and converting it into a duty cycle pre-lift step size, while simultaneously generating a dynamic offset torque command; S4: adaptive modulation execution of the drive level signal; S5: real-time compensation injection of motor vector torque. The voice recognition-based intelligent door and window control method and system of this invention, by acquiring the instantaneous values ​​of the power supply current before and after the start and end of the voice command and calculating the load current acceleration parameters, can predict electromechanical coupling risks before voltage drops.

This invention relates to the field of feeder systems for nuclear fusion devices, and discloses a transition feeder. The transition feeder includes an outer cylinder, a support assembly, and multiple conductors. A receiving cavity is formed inside the outer cylinder, and the support assembly and multiple conductors are disposed within the receiving cavity. At least a portion of the support assembly is in abutting fit with the inner wall of the outer cylinder. The multiple conductors are spaced apart on the support assembly along a first direction. The support assembly supports the conductors, which are used to supply current to a magnet. The support assembly includes a support body, which includes a first connecting plate and multiple support plates arranged sequentially along the first direction. A first mounting hole is defined between two adjacent support plates, and the conductors pass through the first mounting hole. The first connecting plate is fixedly connected to the multiple support plates, and the first connecting plate at least surrounds the first mounting hole on opposite sides in the first direction. This invention's transition feeder can prevent adjacent support plates from separating due to repulsive forces in the first direction after the conductors are energized.

An electronic circuit, electronic system, and driving method are provided to suppress the generation of control voltage oscillations when a semiconductor switching element is turned on. The electronic circuit of the present invention includes: a semiconductor switching element; and a driving circuit that supplies current to a control terminal of the semiconductor switching element and adjusts the magnitude of the current supplied to the control terminal in accordance with the voltage of the control terminal.

A pixel circuit, and a display panel and display device including the pixel circuit are disclosed. The pixel circuit includes a light-emitting element; a compensation circuit configured to supply current to the light-emitting element; and a diode and a switch transistor connected in series between an anode electrode of the light-emitting element and a constant voltage node to which an anode reset voltage is applied. When the diode and the switch transistor are turned on, the voltage of the anode electrode is reset to the anode reset voltage.

This invention provides an impedance conversion circuit designed to reduce noise voltage. [Solution] The impedance conversion circuit 1 uses the microphone's capacitor C MIC The input signal from is received, and the input signal is received with high impedance so as not to attenuate, and the load 2 is driven with a low impedance output. The gate of the PMOS transistor M1 is the input T IN Connected to the source, output T OUT The current source 4 supplies current to the source of the PMOS transistor M1. The back gate potential supply circuit 8 converts the source potential of the PMOS transistor M1 and supplies it as the back gate potential of the PMOS transistor M1. The back gate potential supply circuit 8 has resistors R1 and R2 connected in series, and the back gate potential is adjustable according to the ratio of resistors R1 and R2.

This application discloses a chip power supply protection circuit and an on-board control device, applied in the field of automotive electronics technology, to solve the problem of poor reliability of chip power supply short-circuit protection in the prior art. Specifically: a current sampling module is connected in series in the power supply circuit between the external power supply and the protected chip to collect the power supply current in the power supply circuit and convert it into a corresponding sampling voltage; when the sampling voltage exceeds a preset threshold, the short-circuit detection module generates a drive enable signal and outputs it to the on / off control module; the on / off control module is connected in series in the power supply circuit between the current sampling module and the protected chip to cut off the power supply circuit when the drive enable signal is received; after the drive enable signal disappears, the power supply circuit is automatically restored, realizing fast overcurrent shutdown and fault self-recovery, forming a hardware-level protection mechanism without external intervention, significantly improving the reliability of chip power supply short-circuit protection.