The fast charging protocol is the "language" required for the charger and the device to communicate and shake hands. Only after the correct "dialogue" can the "handshake" be successful and fast chargi...
Hello everyone, I am very happy to be selected for this power bank disassembly. I chose the Black Cat Bit Fast Charger, which costs 69 yuan, but when I received it, I received the Xiaomi 22.5 Fast Cha...
Do I need to draw my own circuit board for the electronic competition? Or do I use a ready-made development board?
Do you need to do the welding yourself?
Newbie, please help! I'm about to cry!...
How to configure random generation of parameters (Get request with parameters) when using jmeter tool for interface stress testing? This is my first time using this tool. I have searched a lot of info...
A few days ago, I saw a video on the Internet. There was an owner who was not at home most of the time. He went home for one day in a certain month. As a result, he received a reminder for electricity...
In many circuits, one power supply may correspond to multiple loads. Sometimes the power supply of the load needs to be switched, and sometimes the load needs to be current limited. The usual method i...
The National Energy Administration vigorously advocates the construction of green new energy. Major energy companies actively respond to the call of the country's new energy construction and accelera...[Details]
Ordinary detection is based on the unidirectional conductivity of the diode. By measuring the forward and reverse resistance of the diode, the quality of the diode can be easily judged. Generally, th...[Details]
At present, the installation rate of HUD products in new vehicles is increasing year by year, and is expected to reach 30% in 2025. So before introducing Epson's HUD integration solution, let us firs...[Details]
GSMA (Global System for Mobile Communications Association), the organizer of the 2020 Mobile World Congress (hereinafter referred to as "MWC") originally scheduled to be held in Barcelona, official...[Details]
1 Characteristics and test requirements of mixed signal testing
With the deepening of the digital wave, chips with mixed signal functions are increasingly appearing in people's lives. MODEM (s...[Details]
Soft starters and frequency converters are two different electrical devices that have different characteristics and performance when starting motors. This article will introduce the starting torque...[Details]
1. Typical structure of single chip microcomputer 0. ("MCU MCS-51 Principle and Application Development Tutorial" by Chao Yang. Tsinghua University Press) 1. Internal structure of MCU CPU Mem...[Details]
1. Introduction
In power systems, it is often necessary to measure the phase difference between voltage and current, and sometimes it is also necessary to measure the phase relationship between ...[Details]
Changes in power management methods in the new version of Linux system device architecture based on linux-2.6.32 1. Power management part of each data structure of the device model The Linux devi...[Details]
Daicel-Evonik (headquartered in Tokyo) has developed a technology to encapsulate LED components using hot melt adhesives (thermoplastic adhesives) . In addition to its original bonding purpose, hot ...[Details]
Photovoltaic inverters are the core equipment of photovoltaic systems. Their main function is to convert the direct current generated by photovoltaic modules into alternating current that meets the...[Details]
According to the latest forecast by research firm CINNO Research, global sales of foldable smartphones are expected to reach 15.69 million units in 2022, a year-on-year increase of 107%. Among them, ...[Details]
Jiwei.com reported on December 9 that Apple launched its new wireless over-ear headphones AirPods Max yesterday, priced at 4,399 yuan, which will be available on the 15th of this month. The earmuffs ...[Details]
ARM's NEON coprocessor technology is a 64/128-bit hybrid SIMD architecture used to accelerate multimedia and signal processing applications including video encoding and decoding, audio decoding and en...[Details]
According to the Russian Satellite News Agency, on June 5, the Russian Direct Investment Fund announced that the fund and China Investment Corporation have agreed to invest US$1 billion to establish ...[Details]