1. Calculation method of battery capacity The capacity of a battery must be the capacity that can be provided to the load at a given voltage and for a given time. The following is an explanation of th...
[table=98%] [tr][td]I made a perpetual calendar using a 51 single-chip microcomputer and 1602, powered by 4 No. 5 batteries. I found that the power consumption was quite high, and it ran out of power ...
LED lighting has attracted wide attention as a new generation of lighting. LED packaging alone cannot produce good lighting fixtures. This article mainly introduces LED lighting from the aspects of el...
The working principle, structure and characteristics of cylindrical linear motors are introduced, and the application and progress of cylindrical linear motors in machine tools such as stamping machin...
[i=s]This post was last edited by dontium on 2015-1-23 12:52[/i] I am a 2010 college graduate, majoring in electronic information engineering. I have a strong interest in single-chip microcomputers an...
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[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]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[Details]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
Multimedia processors are often the most power-hungry devices in portable electronic devices. Common ways to reduce CPU power requirements are to reduce clock frequency or operating voltage, but th...[Details]
There are many types and styles of digital voltmeters in design and development. Traditional digital voltmeters have their own characteristics. They are suitable for manual measurement on site. Tra...[Details]
0 Introduction
The load with impact (rapid change) power in the power system will cause the voltage fluctuation and flicker of the power grid, causing many electrical equipment to fail to wo...[Details]
With the development and application of liquid crystal display technology, more and more developers want to use liquid crystal screens to display Chinese characters in the instruments and equipment th...[Details]
This paper first proposed an elevator controller algorithm based on a finite state machine, and then designed a three-story elevator controller based on the algorithm. The correctness of the elevat...[Details]
During the operation of electronic equipment,
memory
failure or failure will not only lead to economic losses, but also may lead to catastrophic consequences. Therefore, memory testing has ...[Details]
In the process of designing electronic products, we usually control the cost of the designed products, always try to simplify the circuit, reduce the components, and simplify the installation process....[Details]
Analogue and Mixed Signal
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