[i=s]This post was last edited by Feihong Haojie on 2019-9-9 12:11[/i]Signal generators are often used as input signals of signal chains in analog circuit debugging. The actual performance of the circ...
From the processing principle, CNC engraving machine is a kind of drilling and milling combined processing. It is a typical mechatronics product and has a wide range of market applications in mold eng...
Basic knowledge of RF circuits
Frequency selection circuit and impedance conversion
Noise and nonlinear distortion
Wireless communication transceiver system structure
Low Noise Amplifier
RF Power Ampl...
Figure 1 As shown in Figure 1, the output stage of the class-D amplifier adopts push-pull output. In order to reduce the high-frequency oscillation impact caused by the reverse recovery process of the...
Difference between TMS320x281x and TMS320x2833x/TMS320x2823x
I've been using TI's 28355 chip recently. Since I've never used it before and there isn't much information on it online, I went to TI's off...
[i=s]This post was last edited by Jacktang on 2019-5-3 08:50[/i] [size=4] This article first introduces the global millimeter wave spectrum allocation, and then summarizes the technical challenges tha...
Huawei Mate40E will be officially on sale at 10 am today. It is equipped with Kirin 990E chip, uses a 6.5-inch 68° curved screen, has a resolution of 2376 × 1080, a screen refresh rate of 90Hz ...[Details]
According to news on April 18, the Samsung Galaxy S21 series is Samsung's annual flagship launched in 2021, and now the phone is being sold again by Samsung. According to SamMobile, Samsung's...[Details]
GSM/3GSM radio access technology has dominated the global cellular communications market with more than 2.5 billion users and the number of users is still rising. In order to keep pace with the develo...[Details]
1 Hardware Circuit Principle
The metronome uses the AT89C51 single-chip microcomputer as the control center, and is composed of an LED display module, an adjustment keyboard module, and a soun...[Details]
1. Integrated Circuits and Their Characteristics
Integrated circuits are made by integrating transistors, resistors, wires, etc. on a small semiconductor (silicon) substrate using oxidation, p...[Details]
The Nokia 9.3 PureView 5G will be equipped with Qualcomm Snapdragon 865 flagship platform, and the next-generation Qualcomm Snapdragon 875 chip is expected to be released in early December. The...[Details]
In the existing video surveillance projects, more and more companies have chosen IP surveillance systems. Some of them are new projects that directly adopt IP video systems; some need to transform ...[Details]
After reading the examples in the CD that comes with the mini2440, the C language program to light up the LED is a bit complicated. When I opened the project and saw so many files, I was stunned. For...[Details]
Entering 2023, a new thing began to appear frequently in Hubei power grid, that is, the integration of source, grid, load and storage. Source is the power source, grid is the grid, load is the load, a...[Details]
In the mine power grid, the harsh environment and frequent leakage faults underground can cause major accidents such as underground electrical fires, gas and coal dust explosions, and premature detona...[Details]
The annual report is the best "window" to test the performance of listed companies. With the arrival of May Day, the curtain of the 2020 annual reports of A-share listed companies has slowly opened...[Details]
At the important juncture when Xiaomi announced the 1,000th day of car manufacturing, Lei Jun, founder and chairman of Xiaomi Group, announced that the Xiaomi car technology conference will be held o...[Details]
On June 29, the Shanghai Stock Exchange officially accepted the Science and Technology Innovation Board listing application of Shenzhen Tiandeyu Technology Co., Ltd. (hereinafter referred to as "Tian...[Details]
"China's Energy Storage Industry Encyclopedia"
is a comprehensive, detailed and useful encyclopedia reference book on the energy storage industry, jointly produced by China New Energy Ne...[Details]
As the name implies, non-contact temperature sensors are sensors that can measure temperature without direct contact with the object being measured. This type of sensor is widely used in industry, ...[Details]
Test/Measurement
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