It is said that the economy is in recession now, especially in the IT industry. White-collar workers in Beijing and Shanghai are in danger. 178 companies have submitted a list of layoffs. I am in Shen...
[i=s]This post was last edited by qwqwqw2088 on 2019-5-4 19:10[/i] [color=#333333][font=Arial, "][size=5]After buying a new mobile phone, what do you usually do with the old one?[/size][/font][/color]...
clk: system clock; rst: reset signal
clk1us: the clock for sampling AC signals;
pulse: AC signal zero-crossing square wave
data: sine input data
rms_div: The sum of the sampled data in one cycle accor...
My program communicates with peripherals through the parallel port, but my peripherals are connected to the computer through the serial port. There will be no changes in the hardware, and I cannot use...
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
Capacitors
are basic components in various electronic devices and are widely used for bypassing, coupling,
filtering
, tuning, etc. in electronic circuits. However, to use capacitors,...[Details]
Among the uses of electrical energy, lighting accounts for a considerable proportion. Compared with the earlier ordinary incandescent lamps, the fluorescent lamps and energy-saving lamps we commonl...[Details]
Movpower is a portable power bank. It can charge most mobile phones and digital products, such as digital cameras, PDAs, and mobile phones such as Apple, iPod, Blackberry, Motorola, Samsung, Nokia,...[Details]
Nowadays, more and more people have digital cameras. The convenience and speed of digital cameras have gradually replaced film cameras and become the main tool for people's daily photography. The n...[Details]
The overall operating performance of an electric car depends first on its battery system and motor drive system. The drive system of an electric car is generally composed of three main parts: a con...[Details]
At present, the DES algorithm is increasingly used in confidential communications in the financial and non-financial sectors. DES (Data Encryption Standard) is a data encryption algorithm that was suc...[Details]
"The father of knockoff phones" aims to make up for TD's shortcomings
IT Times reporter Lin Fei
On June 22, the day before the Dragon Boat Festival, on the other side of the Taiwan Strait, a m...[Details]
1. Self-test of lithium battery capacity
The nominal capacity of the CECT9898 OEM mobile phone lithium battery is 3800mAh, and its battery volume is comparable to the 1500mAh battery of ot...[Details]
Recently, there has been controversy in the industry over whether the adoption rate of automotive electronic safety products in cars should be as high as possible. Some industry insiders believe th...[Details]
1. Introduction
The novel bidirectional high-frequency link inverter has the advantages of bidirectional power flow, high-frequency electrical isolation, simple topology, and two-stage po...[Details]
The joint station of an oil production plant is a large workstation for the joint treatment of oil, gas and water. It has many posts, including the central control room, oil post, water post, heati...[Details]
1 Introduction to Wireless Broadband Communications
Since the IEEE802 working group formulated the 802-11 wireless LAN standard in 1997, wireless broadband communication based on WLAN technolo...[Details]
Power Line Communication (PLC) technology is a communication technology that uses medium/low voltage lines in distribution networks to transmit high-speed data, voice, images and other multimedia s...[Details]
Talking
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