A friend recently gave me a set of [American Classics] series textbooks. I read a little bit and felt it was okay, so I uploaded it to share with you. All of them are free to download. Friends who nee...
1. (Positioning) When we develop a street lamp, we must first have a positioning (develop a lamp condition table, such as the general structure of the lamp, electrical performance indicators, emission...
I just learned MCU and want to use Hall sensor 41F (switch type) to measure the motor speed for future preparation. My hardware is fine, now let's talk about the program. I connect the signal output t...
My WINCE device can now be recognized as a USB flash drive. There is another problem. When I plug in the USB cable, the drive letter of the NAND FLASH on WINCE disappears, and the drive letter of the ...
Have you ever done gprsdtu? When I use sim900a for TCP transmission, I feel that the speed is very slow. I use AT+CIPSEND, wait for send ok after sending, and then send the next one. But the waiting p...
When using s3c44b0, I saw a statement rNCACHBE0=(((Non_Cache_End)>>12)>12); Why can I set the start and end addresses of the non-cache area in this way? In addition, why should I write ((Non_Cache_End...
With the rapid development of science and technology, especially the widespread application of digital technology and various ultra-large-scale integrated circuits, electronic equipment, especially...[Details]
I. Introduction
In the field of power conversion, isolated converters (forward, flyback, and double-ended) with low output DC voltage all use MOSFET as the rectifier device. Since these devi...[Details]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
introduction
MAX6636 is a multi-channel precision temperature monitor that can not only monitor local temperature, but also connect up to 6 diodes externally. Each channel has a programmable...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
Against the backdrop of global warming, energy conservation and emission reduction have become a global hotspot and focus, which has also sounded the clarion call for the take-off of the LED lighti...[Details]
A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]
1 Introduction
Washing machines are an indispensable household appliance in the home, and they are developing very fast. Fully automatic washing machines are favored by everyone because of their con...[Details]
1 Introduction
At present, advocating health has become the focus of people's attention, and the emergence of treadmills has become more and more popular. People can exercise at home or in the ...[Details]
Current
measurement:
Magnetic balance Hall current
sensor
is used
. The sensor can measure AC from DC to 100kHz.
In automatic measurement and control systems, it is often nec...[Details]
Analog electronics
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