Shenzhen Changjiang Connector Co., Ltd. is a world-leading professional connector manufacturer with 20 years of experience. Its products mainly include wire-to-board connectors, board-to-board connectors, wire-to-wire connectors, wire harness processing and connector design, mold development and manufacturing. It is compatible with international brand connectors from Europe, the United States, Japan, South Korea and other countries.
International roaming charges plunge, telecom charges cut across the board to break the ice 2006-7-13 On June 9, China Mobile announced to reduce the international roaming charges of Global Connect ac...
[i=s] This post was last edited by jj1989 on 2019-4-27 18:47 [/i] [size=4] [md]# 【RT-Thread Reading Notes】Virtual File System## Preface I have been paying attention to the RT-Thread embedded real-time...
When the AD9361 local oscillator is set to 2400M, assuming that a 2402M signal is collected, and then a 2MHZ sine wave can be seen through FPGA observation, but I don’t know whether the collected sign...
[i=s] This post was last edited by qwqwqw2088 on 2019-3-5 16:16 [/i] [size=4][color=#000000][backcolor=white] Texas Instruments has released a new power stage reference design - TIDA-00915, which offi...
1. Select the actuator of the solar panel that can track the sun. 375516[/attach] [/align][align=center] [/align][align=center] [/align][align=center] [/align][align=center] [/align][align=center] [/a...
First, a post like this appeared on the BBS: I am a doctoral student, and I know the importance of learning. After so many years of learning, I have successfully transformed myself from a farmer to a...
introduction
Current wireless product design principles involve
designing
the power amplifier
(PA) and low noise amplifier (LNA) to have a 50Ω impedance independent of the antenna, which ...[Details]
Color ring resistance - measurement method Volt-ampere method: also known as voltmeter, ammeter method, is a common method for measuring resistance. It measures the resistance value by using Ohm's la...[Details]
On December 17, Yingtang Intelligent Control received a letter of concern from the Shenzhen Stock Exchange, requesting additional information on the specific circumstances of Yingmeng Technology’s sh...[Details]
According to Reuters, Logitech CEO Bracken Darrell said in an interview that the global shortage of semiconductor chips may last for 3 to 6 months, and some industries face shortages of up to a year....[Details]
Fault self-diagnosis is an important aspect of system maintainability design and an important issue that must be considered to improve system reliability. Self-diagnosis mainly uses software method...[Details]
1. Explanation of some common English abbreviations in ARM MSB: most significant bit; LSB: least significant bit; AHB: Advanced High-Performance Bus; VPB: VLSI peripheral bus that connects on-chip an...[Details]
Recently, Guo Bing, a distinguished associate professor at Zhejiang Sci-Tech University, sued Hangzhou Wildlife World in court for refusing to use the facial recognition system to upgrade his annual ...[Details]
The iPhone is getting closer and closer, which means that TSMC's 10nm process has completely solved the yield problem and can achieve a good performance in iPhone production. Recently, an insider r...[Details]
Abstract: This paper introduces a design method of an intermittent pulse three-stage charger for high-performance lead-acid batteries in electric vehicles. The charger not only has a good charging ...[Details]
According to the latest news recently, the first batch of Snapdragon 898 models will be officially unveiled in mid-December, and domestic mainstream manufacturers will also follow up and launc...[Details]
2.2.2 System filtering algorithm steps
(1) The local filter l processes the train position information output by the GPS receiver and gives the covariance matrix p1 of the state estimate x...[Details]
When an enterprise purchases a piece of machinery and equipment, it needs to maintain the equipment to ensure that the equipment can maintain long-term and efficient operation, which tests the ent...[Details]
Last night (8), Huawei held an online spring new product launch conference in China, launching the Huawei P40 series and other new products. Today (9), Huawei Consumer Business CEO Richard Yu accepte...[Details]
According to the announcement of the State Intellectual Property Office, Henan Huihuang Technology Co., Ltd. has obtained a patent entitled "A diaphragm punch-free all-vanadium liquid flow battery ...[Details]
On November 6, Tianfeng Securities analyst Ming-Chi Kuo published a blog post on Medium yesterday (November 5), deeply analyzing the causes and consequences of Intel's Lunar Lake failure.
IT H...[Details]
RF/Wirelessly
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