Abstract: The present invention discloses a calculation method of eddy current loss in magnetic materials based on magnetic-inductance. The present invention proposes a vector model of a magnetic circuit, an eddy current reaction is equivalent to a magnetic-inductance component in the magnetic circuit, and the eddy current loss can be fast calculated by the vector model of the magnetic circuit. When the frequency is high, the eddy current loss dominates an iron loss and can be estimated as an entire iron loss. The present invention proposes the vector model of the magnetic circuit based on which the calculation method of eddy current loss in magnetic materials is proposed as well. Through the proposed method the eddy current loss in magnetic materials can be directly calculated by using the magnetic-inductance and the magnetic flux in the magnetic circuit, which can provide guidance for design and performance evaluation of high-frequency electrical equipment from a brand new viewpoint.

Abstract: A method of determining an effect of electronic component placement accuracy on wire loops in a semiconductor package is provided. The method includes the steps of: (a) providing package data for a semiconductor package, the semiconductor package including an electronic component; (b) simulating placement of the electronic component in a plurality of positions with respect to a substrate in the semiconductor package; and (c) determining, using a software tool, an effect of each of the plurality of positions of the electronic component on a plurality of wire loops included in the semiconductor package.

Abstract: A method of determining suitability of a wire bonding tool for a wire bonding application is provided. The method includes the steps of: (a) providing specifications for a wire bonding tool; and (b) determining if the wire bonding tool is acceptable for a wire bonding application using (i) a software tool and (ii) the specifications provided in step (a).

Abstract: Embodiments of the present disclosure provide a DC-DC converter, and a DC output device. The DC-DC converter includes: a housing; a detachable connection structure arranged on the housing and configured to detachably connect with a battery module; a DC-DC conversion module received in the housing and configured to convert a direct current input from the battery module to a direct current at a preset voltage; and one or more current output ports arranged on the housing, the one or more current output ports are electrically connected with the DC-DC conversion module and are configured to output the direct current at the preset voltage obtained from the DC-DC conversion module.

Abstract: A display panel includes a base substrate and a plurality of sub-pixel groups. The plurality of sub-pixel groups includes a first sub-pixel group and a second sub-pixel group. The first sub-pixel group includes two adjacent sub-pixels with a first interval therebetween, and the second sub-pixel group includes two adjacent sub-pixels with a second interval therebetween. The first interval is different from the second interval.

Abstract: A display substrate and a display device. The display substrate includes a pixel circuit in which the driving circuit controls a driving current for driving the light emitter element to emit light; the first light emission control circuit applies a first voltage to a first terminal of the driving circuit in response to a first light emission control signal; the second light emission control circuit applies the driving current to the light emitter element in response to a second light emission control signal; the first reset circuit applies a first reset voltage to the control terminal of the driving circuit in response to a first reset signal; the first reset signal and the first light emission control signal are simultaneously turn-on signals during a period; the first light emission control line and the second light emission control line extend along a first direction and are arranged in a second direction.

Abstract: Embodiments of the present disclosure provide a DC-AC converter, including: a converter housing; an electrical connector, arranged on the converter housing and configured to be electrically connected with the battery module; a DC-AC conversion module arranged in the converter housing and configured to convert a direct current output from the battery module to an alternating current; and a detachable connection structure arranged on the converter housing and configured to detachably connect the DC-AC converter to the battery module. Embodiments of the present disclosure further provide an AC output device, in which the DC-AC converter is detachably connected to the battery module. The DC-AC converter can be detached from the AC output device when the user does not need the current conversion function.

Abstract: Embodiments of the present disclosure relates to the technical field of mobile power supply, and a battery module of a battery-replacement outdoor power supply is provided. The battery module of the battery-replacement outdoor power supply is incorporated into a battery compartment of the battery-replacement outdoor power supply and includes a battery pack, a housing, and a quick connector penetrating through the housing. One end of the quick connector is electrically connected to the battery pack, and the other end of the quick connector is detachably connected to a slot in the battery compartment.

Abstract: The present disclosure discloses a device for centrifuge testing of a driven pile in different installation and pull-out modes, including a supporting system, a pile driving system, a pile-soil system and a measurement and acquisition system. The present disclosure further provides a method for operating the device for centrifuge testing of a driven pile in different installation and pull-out modes. The present disclosure can perform geotechnical centrifuge testing of a driven pile through penetration in different installation modes and pull-out in different pull-out modes, and provide the effective test device and method for study of a pile-soil mutual dynamic response during a whole process of penetration and a process of pull-out of the driven pile. Moreover, pile-soil deformation characteristics and the like during the processes of penetration and pull-out can be visually observed through a high-speed camera or a digital camera, and the pull-out and penetration can be tested separately.

Abstract: A method of determining a sequence for creating a plurality of wire loops is provided. The method includes (a) providing workpiece data for a workpiece. The workpiece data includes (i) position data for bonding locations of the workpiece, and (ii) wire loop data for a plurality of wire loops providing interconnection between ones of the bonding locations. The method also includes (b) analyzing the workpiece data. The step of analyzing includes considering overlap conditions between ones of the plurality of wire loops, considering wire loop heights of ones of the plurality of wire loops, considering lateral bend conditions between ones of the plurality of wire loops, and considering wire loop positions for ones of the plurality of wire loops. The method also includes (c) providing a sequence of creating the plurality of wire loops in connection with the workpiece at least partially based on the results of step (b).

Abstract: Disclosed is a power calculation method of a magnetic circuit. In view of the power problem of a magnetic circuit and the phase problem of a magnetomotive force (MMF) and a magnetic flux in the magnetic circuit, the present disclosure draws a magnetic circuit vector diagram based on an equivalent magnetic circuit vector model, and provides a method for calculating virtual magnetic active power, virtual magnetic reactive power, and virtual magnetic complex power of the magnetic circuit by analyzing the MMF, the magnetic flux, the reluctance, and the magnetic reactance in the magnetic circuit by using the magnetic circuit vector diagram.

Abstract: A wireless communication method includes after a master device establishes a wireless connection to a slave device, performing negotiation on sound effect processing. The master device determines, based on indication information fed back by the slave device, whether joint sound effect processing can be performed between the master device and the slave device. If joint sound effect processing can be performed, the method includes performing adaptive sound effect processing on both master device and slave device sides.

Abstract: A display substrate and a display device. The display substrate includes a pixel circuit in which the driving circuit controls a driving current for driving the light emitter element to emit light; the first light emission control circuit applies a first voltage to a first terminal of the driving circuit in response to a first light emission control signal; the second light emission control circuit applies the driving current to the light emitter element in response to a second light emission control signal; the first reset circuit applies a first reset voltage to the control terminal of the driving circuit in response to a first reset signal; the first reset signal and the first light emission control signal are simultaneously turn-on signals during a period; the first light emission control line and the second light emission control line extend along a first direction and are arranged in a second direction.

Abstract: A method of operating a wire bonding machine is provided. The method includes: (a) operating a wire bonding machine during at least one of (i) an automatic wire bonding operation and (ii) a dry cycle wire bonding operation, wherein a bonding force is applied during the operation of the wire bonding machine; and (b) monitoring an accuracy of the bonding force of the wire bonding machine during the at least one of (i) an automatic wire bonding operation and (ii) a dry cycle wire bonding operation.

Abstract: A method of calibrating an ultrasonic characteristic on a wire bonding system is provided. The method includes the steps of: (a) determining a reference ultrasonic characteristic for formation of a wire bond; (b) determining a reference non-stick ultrasonic characteristic that results in a non-stick wire bond condition; (c) determining a calibration non-stick ultrasonic characteristic, on a wire bonding system to be calibrated, that results in a non-stick wire bond condition; and (d) determining a calibration factor for the wire bonding system to be calibrated using the reference non-stick ultrasonic characteristic and the calibration non-stick ultrasonic characteristic.

Abstract: The present disclosure provides a gate driving circuit, a method of driving a gate driving circuit, and a display panel. The gate driving circuit includes a plurality of driving units connected in cascade. Each driving unit includes: N shift register units; and a mode control circuit connected to the N shift register units, wherein the mode control circuit is configured to receive a control signal for the driving unit, and connect the N shift register units in one of a plurality of resolution modes under the control of the control signal.

Abstract: Provided are a display panel, a drive method thereof and a display apparatus. The display panel includes a plurality of scan signal lines, a plurality of data signal lines and a plurality of sub-pixels; at least one sub-pixel includes switch assembly and a display unit, wherein the switch assembly at least includes a control terminal, an input terminal and an output terminal, wherein the input terminal is connected to the data signal line, the output terminal is connected to the display unit, and the control terminal or the input terminal is connected to the scan signal line; the display panel further includes at least one switch control line, which is connected to the control terminal of the switch assembly, and the switch control line is configured to control the input terminal and the output terminal of the switch assembly to be turned on or off.

Abstract: A display panel includes a plurality of pixels and an electrostatic circuit. At least one pixel includes: a pixel electrode; a common electrode; a light-emitting element; and a driving sub-circuit coupled to a scanning signal terminal, a data signal terminal, a light-emitting control signal terminal, a first voltage signal terminal and a first terminal of a light-emitting element, and outputs a first voltage signal from the first voltage signal terminal to the light-emitting element controlled by a scanning signal, a data signal, and a light-emitting control signal. The electrostatic circuit couples a first signal line and a second signal line, the first signal line receives a second voltage signal, and the second signal line receives a third voltage signal and is arranged on a periphery of the plurality of pixels. Common electrodes of the pixels are coupled to each other and to the second signal line.

Abstract: The present invention provides a battery equalizing apparatus and method, and an unmanned aerial vehicle (UAV). The battery equalizing apparatus includes: a battery gauge configured to monitor battery level information of a battery in a static state, a battery equalizing circuit being disposed inside the battery gauge; and a microprocessor connected to a communication port of the battery gauge and configured to: acquire the battery level information monitored by the battery gauge, and calculate a pressure difference between cells of the battery in a static state according to the battery level information, and determine whether the pressure difference is greater than a pressure difference threshold; the microprocessor sending a trigger signal to the battery gauge through the communication port when the pressure difference is greater than the pressure difference threshold, to trigger the equalizing circuit of the battery gauge to equalize the battery.