ADI online seminar simplifies and accelerates active filter design : https://training.eeworld.com.cn/course/4790The success of a system design depends on proper signal conditioning in the signal path....
[p=25, null, left][color=rgb(51, 51, 51)][font=微软雅黑]Why can the same phone connect to some devices but not others? Why can the same device connect to some phones but not others? Why can the same phone...
I saw a book online about learning Python through the game Minecraft and would like to share it with you.[hide]Link: https://pan.baidu.com/s/1e6IQbTPznqcMD6ULKph_7g Extraction code: wrrm[/hide]...
[i=s] This post was last edited by jameswangsynnex on 2015-3-3 20:02 [/i] Cost-effective DC motor control circuit Recently, in the process of developing new products, a cheap and high-performance DC m...
What is the highest core frequency of MC9S12XEP100[/size][/font][/color][color=#000][font=宋体][size=5]MHz[/size][/font][/color][color=#000][font=宋体][size=5]? What is the highest bus frequency of MC9S12...
RFID theory and technology have been mature since the 1970s. Since then, its application has been mainly in closed systems, such as animal tracking and highway toll systems. Because RFID is not widely...
Many friends must have encountered such a problem when debugging NRF24L01. The power supply of NRF24L01 is 3.3V, and the maximum voltage cannot exceed 3.6V, but the voltage of 89C51 is 5V. The power s...[Details]
The ground resistance measurement range of CA6423 is 10mΩ to 1999Ω. It has an automatic range switching function and can automatically select the best range. Easy to operate, just connect the test li...[Details]
Electromagnetic interference
is caused by signal current in a large loop.
Figure 9.6 illustrates a common electromagnetic interference problem. A 64-bit bus is connected from card A...[Details]
1. Acquisition of relevant information Personally, when I was learning the mini2440 development board, I followed teacher Wei Dongshan’s videos. The videos and information can be obtained from th...[Details]
This article analyzes the common problems in the electromagnetic compatibility testing of mobile phones, including electrostatic discharge immunity test, electrical fast transient pulse group immunity...[Details]
(Image source: HUAWEI BeiDou official website) According to foreign media reports, Shenzhen Huada Beidou Technology Co., Ltd. (Allystar Technology CO. Limited) has launched a dual-antenna, multi...[Details]
If the signal frequency is in the microwave range, the wide range of H, Y and Z parameters (used in basic network theory) cannot be measured for the following reasons: Difficult to measure the total...[Details]
On May 20, 2014, WPG Holdings, a leading electronic component distributor dedicated to the Asia-Pacific market, announced that its subsidiary U-SUN has launched a notebook power solution based on the...[Details]
White light LED
is a voltage-sensitive device. In actual operation, the current is capped at 20mA. However, the current often increases due to various reasons during use. If no protective m...[Details]
① Use a multimeter to select the appropriate gear. In order to improve the measurement accuracy, the gear should be selected according to the nominal value of the resistor. The pointer should indic...[Details]
Multimeter is one of the most commonly used measuring instruments for electronics enthusiasts. It is an instrument that integrates multiple common electrical measurement functions. Nowadays, many mu...[Details]
As the end of the year approaches, all major car companies are making their final "sprint", and the domestic new energy market is the focus of competition among all parties. First, Tesla officially a...[Details]
On August 8, 2017, a magnitude 7.0 earthquake struck Jiuzhaigou County, Aba Tibetan and Qiang Autonomous Prefecture, Sichuan. However, while the editor was concerned about the safety of Sichuan compa...[Details]
Negative polarity output voltage regulator circuit using NPN and PNP tubes to expand output
Figure 1. Negative polarity output voltage stabilization circuit using NPN and PNP tubes to expand the...[Details]
Analog electronics
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