China's power semiconductor industry has a good opportunity to develop. Developing new energy and promoting energy conservation and emission reduction have become the inevitable choice for China's eco...
We were all very excited when we got the board. We wrote programs on it and shared a lot of experiences. Mengzhilv set a good example for us and published three experiences in one night. We are very g...
II. Relay-related knowledge (4) 1. How many accuracy levels does a current transformer have? Where are the different accuracy levels applicable? 2. What requirements should a current transformer meet?...
I successfully burned Eboot.bin and downloaded Eboot.nb0, but there is no Bootloader menu option in the HyperTerminal. Why? Sometimes it can be displayed in some test boxes. And why is there no Wince ...
There are two modules on the PCB board, the Bluetooth module and the Wi-Fi module. How should the antennas of these two modules be placed?
Is it better to place it vertically or horizontally at 180 de...
[i=s]This post was last edited by tiankai001 on 2018-12-2 18:44[/i] [b]1. Reliable logic high level I/O circuit (input) [/b][p=28, null, left][color=rgb(34, 34, 34)]The maximum voltage that the microc...
High efficiency and low standby power consumption are two major challenges in today's switching power supply design. Resonant topology or LLC topology is becoming increasingly popular because it ca...[Details]
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]
When choosing a laptop battery, you should consider several factors, such as power, appearance, and quality.
Regarding power, we often see that a manufacturer uses values such as the number ...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[Details]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[Details]
With the development and widespread application of computer technology, especially in the field of industrial control, computer communication is particularly important. Although serial communication g...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
Smart lighting control systems provide high controllability for various buildings and further enhance the level of green energy. They are the core products of energy conservation and digital techn...[Details]
With the continuous consumption of earth's energy and the scarcity of resources, the harm of greenhouse effect to human beings, and the serious pollution of the atmosphere to the earth, the intern...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
The traditional display screen using 51 single-chip microcomputer to control LED dot matrix has relatively simple functions. If it is to achieve diversified functions, it often takes a lot of time ...[Details]
Test/Measurement
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