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1 Introduction At present, with the continuous improvement of science and technology and the level of industrial and agricultural production, higher and higher requirements are put for...[Details]

High-speed, high-precision, stable measurement The battery impedance tester BT4560 significantly shortens the inspection time of lithium batteries through low-frequency measurement, and can make high...[Details]

Crimping is a job that electricians are very familiar with. Many electricians are familiar with crimping wire noses. However, many people crimp wire noses based on experience. When we connect wires...[Details]

Power supply noise is a type of electromagnetic interference, and the spectrum of its conducted noise is roughly 10kHz~30MHz, and can reach up to 150MHz. Power supply noise, especially transient noise...[Details]

China Energy Storage Network News: On January 8, 2019, the "Beijing Yanqing Energy Internet Green Cloud Computing Center" project was officially launched at the Beijing Yanqing Park project s...[Details]

The MAX9867 is an ultra-low-power stereo audio codec designed for portable consumer electronics such as cell phones and portable game consoles. The device has stereo differential microphone inputs ...[Details]

When a pacemaker's battery runs low, the entire implant usually has to be replaced surgically, so scientists are developing a non-invasive battery charging system that can use externally applied ultr...[Details]

void Paint_BMP(int x0,int y0,int level,int vertical,const unsigned char *bmp)/*Draw on the screen*/ {     int x,y;     UINT32 col;     int p = 0; UINT16 *addr;       for( y = 0 ; y 272 ; y++ )    ...[Details]

According to DigiTimes, Apple is expected to regain the second place in the global smartphone manufacturer ranking from Huawei in the fourth quarter of 2019. The ranking change is said to be caused b...[Details]

Development board: JZ2440V3 U-Boot version: u-boot-2012.04.01 1. First download the source code, upload it to the server, and decompress it. tar -jxvf u-boot-2012.04.01.tar.bz2 2. Create a ne...[Details]

Apple has launched the 2019 iPhone, but the supply chain has reported that Apple is likely to adjust its casing suppliers from the original two major and two minor suppliers, given the integration ad...[Details]

In the early 1970s, the application of 20kHzPWM switching power supply caused the so-called "20kHz power supply technology revolution" in the world. Inverter power supply can be divided into power ...[Details]

Matrix keyboards are often used as input devices in microcontroller (MCU) based projects. The conventional approach to connecting a matrix keyboard to a microcontroller is to use several I/O pins of ...[Details]

Apple may be preparing to hold its next special event for the iPhone 12 on October 13, but in the meantime, Apple executive Eddy Cue appeared in an internal presentation by a UK operator about the ne...[Details]

This section mainly introduces the knowledge related to NandFlash, first of all, the role, classification and access method of NandFlash. Role analysis: In personal PCs, hard disks ...[Details]