Abstract: A gate driving system for driving a switching operation of a first switch, the gate driving system being configured to receive a control signal, provide a gate drive voltage signal to a gate terminal of the first switch to drive the switching operation of the first switch, detect a first voltage at a first terminal of the first switch, and adjust the gate drive voltage signal based on the first voltage, as detected.

Abstract: Methods, systems, and devices for electric machine drive calibration, verification, and efficiency improvement are disclosed herein. One electric machine controller for calibration includes a processor and memory and instructions that are stored in the memory and executable by the processor to identify a vehicle and/or electric machine frequency response during operation of the vehicle and use the electronic machine and a dynamic motor drive converter to provide source excitations based on the identified frequency response.

Abstract: Methods, systems, and devices for electric machine drive calibration, verification, and efficiency improvement are disclosed herein. One electric machine controller for calibration includes a processor and memory and instructions that are stored in the memory and executable by the processor to identify a vehicle and/or electric machine frequency response during operation of the vehicle and use the electronic machine and a dynamic motor drive converter to provide source excitations based on the identified frequency response.

Abstract: A system is provided that includes a diode bridge for rectifying an AC input voltage. A main switching power converter converts a rectified input voltage from the diode bridge into an output voltage. A flyback converter is coupled either to a pre-bridge node or a post-bridge node to receive an input voltage that is converted into a power supply voltage for a controller integrated circuit. The controller integrated circuit regulates both the output voltage and the power supply voltage.

Abstract: An iterative learning-based energy-saving control method for a piezoelectric motor, comprising: setting a sampling period of a piezoelectric motor (101); obtaining an expected output trajectory of the piezoelectric motor, and performing sampling according to the sampling period to obtain a sampled expected output sequence (102); setting an initial control input signal of the piezoelectric motor (103); obtaining an actual control input signal according to a mapping relation of the initial control input signal, and transmitting the actual control input signal to the piezoelectric motor to obtain an actual output position (104); obtaining a mapping relation of the output position of the piezoelectric motor according to the actual output position, and sampling the mapping relation according to the sampling period to obtain a sampled actual output sequence (105); calculating the difference between the sampled expected output sequence and the sampled actual output sequence to obtain a sampling error function sequen

Abstract: Methods, systems, and devices for electric machine drive calibration, verification, and efficiency improvement are disclosed herein. One electric machine controller for calibration includes a processor and memory and instructions that are stored in the memory and executable by the processor to identify a vehicle and/or electric machine frequency response during operation of the vehicle and use the electronic machine and a dynamic motor drive converter to provide source excitations based on the identified frequency response.

Abstract: An iterative learning-based energy-saving control method for a piezoelectric motor, comprising: setting a sampling period of a piezoelectric motor (101); obtaining an expected output trajectory of the piezoelectric motor, and performing sampling according to the sampling period to obtain a sampled expected output sequence (102); setting an initial control input signal of the piezoelectric motor (103); obtaining an actual control input signal according to a mapping relation of the initial control input signal, and transmitting the actual control input signal to the piezoelectric motor to obtain an actual output position (104); obtaining a mapping relation of the output position of the piezoelectric motor according to the actual output position, and sampling the mapping relation according to the sampling period to obtain a sampled actual output sequence (105); calculating the difference between the sampled expected output sequence and the sampled actual output sequence to obtain a sampling error function sequen

Abstract: The invention relates to a field off artificial intelligence (AI) technologies, and discloses a method and an apparatus for high-order iterative self-learning control for a robotic fish, and a storage medium; the control method performs preferential iterative calculation on control gain elements in the control gain set to obtain a target control gain set; and performs high-order iterative calculation according to the target control gains, the first control input thrust and the first tracking error to obtain a target control input thrust, and then controls a robotic fish to swing according to the target control input thrust to obtain an expected speed. In this way, complete tracking and rapid convergence of a swim speed of a robotic fish in the whole operation space may be achieved.

Abstract: A transportation device for liquid crystal panel, wherein the transportation device comprises a housing, a bottom of the housing is provided with moving wheels, a first support portion, a second support portion, and a lifting platform supporting the second support portion. The first support portion is configured to cooperate with a first grab device, the second support portion is configured to cooperate with a second grab device.

Abstract: An electroluminescent display device and a fabricating method thereof are provided. The device has a TFT layer, a first functional layer, an electroluminescent layer, a second functional layer, and a functional bar disposed sequentially. The device uses Seebeck effect of constituent material of p-type Bi2Te3 of the functional bar to absorb heat of the TFT layer for converting the heat into electric energy, thereby effectively reducing heat of the TFT layer, reducing aging of circuit and organic material, and improving life of the electroluminescent display device. A work function of p-type Bi2Te3 material of the functional bar is 5.3 eV. An electroluminescent material has a HOMO energy level ranging from 5 to 6 eV. Under a driving of a thermoelectromotive force, majority carriers (holes) in the constituent material of p-type Bi2Te3, are injected into the electroluminescent layer to improve a carrier concentration therein, thereby improving emission luminance of the electroluminescent display device.

Abstract: An electroluminescent display device and a fabricating method thereof are provided. The device has a TFT layer, a first functional layer, an electroluminescent layer, a second functional layer, and a functional bar disposed sequentially. The device uses Seebeck effect of constituent material of p-type Bi2Te3 of the functional bar to absorb heat of the TFT layer for converting the heat into electric energy, thereby effectively reducing heat of the TFT layer, reducing aging of circuit and organic material, and improving life of the electroluminescent display device. A work function of p-type Bi2Te3 material of the functional bar is 5.3 eV. An electroluminescent material has a HOMO energy level ranging from 5 to 6 eV. Under a driving of a thermoelectromotive force, majority carriers (holes) in the constituent material of p-type Bi2Te3, are injected into the electroluminescent layer to improve a carrier concentration therein, thereby improving emission luminance of the electroluminescent display device.

Abstract: A display panel and a display device are provided. The display panel includes a substrate, a thin film transistor layer, a light emitting device layer, a thin film encapsulation layer and a particle layer. A particle layer consisted of silver particles is disposed between the thin film transistor layer and the thin film encapsulation layer, and the density of state of photons and the spontaneous emission rate of excitons are increased so that the luminous efficiency of the OLED display panel is improved.

Abstract: Tools and methods for detecting the presence bacteria, yeast and mold in a sample obtained from a food sample are provided. The methods employ a polymerase chain reaction and primer and probe sets that are based on the 16S rRNA and squalene-hopene cyclase genes of Alicyclobacillus and Geobacillus and the 18S rDNA gene of mold and yeast. The present invention also relates to primer and probe sets. Each primer and probe set comprises a forward primer and a reverse primer, both of which are from 15 to 35 nucleotides in length and a probe.

Abstract: This invention discloses a method of bit-rate control and adjustment for audio coding, which comprises following steps: obtain the spectrum of the current audio frame and compute the maximum absolute value of each Bark (Bark: in the unit of critical band) frequency band; calculate the initial value of the minimum scale factor threshold and set the scale factor for each Bark band; Scale the spectrum of each audio frame with different scale factor, encode the quantized spectrum and calculate the coded bit of the current frame; Determine whether or not the coded bits of current frame is within the expected range of the bits, if yes, the bitstream is formatted and outputted, otherwise the minimum scale factor threshold is adjusted and repeat the above steps until the requirement is met. This method can significantly improve the encoding speed and reduce the coding loss of audio.

Abstract: This invention discloses a method of frequency band group partition for wideband audio codec. It can determine the initial frequency band group partition within the whole effective range of frequency bands. It further subdivides frequency band groups based on the initial partition. Instead of the iteration-based algorithm, this invention applies the 1-from-2 and 1-from-3 criterions to accomplish the fast partition with at most 3 subdivisions. This invention implements the fast partition for frequency band group without the loss of the coding efficiency. By applying this fast partition method, one can greatly reduce the computational complexity and significantly improve the coding performance.

Abstract: This invention discloses an implementation of audio codec, which has low computational complexity, small memory footprint and high coding efficiency. It can be used in handheld devices, SoC or ASIC products and embedded systems. At the encoder side: first, apply time-to-frequency transform to audio signals, obtaining un-quantized spectrum data; second, based on the un-quantized spectrum data and target bit count, calculate the corresponding information of optimal scale factor, frequency band group, code table index and quantized spectrum by iteration; third, calculate and format bit-stream; fourth, output formatted bit-stream. At the decoder side: parse the formatted bit-stream, apply decoding and inverse quantization to the spectrum of each frame, reconstruct temporal audio data by frequency-to-time transform, and reconstruct the time-domain signals of each channel.

Abstract: Tools and methods for detecting the presence bacteria, yeast and mold in a sample obtained from a food sample are provided. The methods employ a polymerase chain reaction and primer and probe sets that are based on the 16S rRNA and squalene-hopene cyclase genes of Alicyclobacillus and Geobacillus and the 18S rDNA gene of mold and yeast. The present invention also relates to primer and probe sets. Each primer and probe set comprises a forward primer and a reverse primer, both of which are from 15 to 35 nucleotides in length and a probe.