I525-7Q5-20.000

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]

In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[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]

1 Introduction Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]

(1) Open circuit voltage of the battery (2) Internal resistance of the battery (3) Battery operating voltage (4) Charging voltage Charging voltage refers to the voltage applied ...[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]

Conventional crystalline silicon solar cells are made on high-quality silicon wafers with a thickness of 350-450μm, which are sawn from pulled or cast silicon ingots. Therefore, more silicon materi...[Details]

The physical interference of dc/dc switching power converters is well known unless the system and circuit diagram are carefully designed. These converters can inject unwanted charge into the electr...[Details]

“Productivity determines production relations, and the development of productivity determines the change of production relations”, yes, society is always full of changes, and advanced science and t...[Details]

1. Introduction Power flow calculation is the basis for studying steady-state problems of power systems. Since the application of computers to calculate power flow distribution in power sy...[Details]

introduction Since the 1990s, with the continuous reduction of the feature line width of integrated circuits and the corresponding increase in chip density and operating frequency, reducing po...[Details]

0 Introduction With the continuous progress of science and technology, industrial control systems are developing towards openness, digitization, intelligence, distribution and networking. Field...[Details]

Abstract: Based on CPLD as the core, a manageable SAS hard disk backplane is designed. While conveniently replacing the faulty hard disk, it can indicate the working status of the hard disk by cont...[Details]

Engineers usually use multiple groups of cheap small-capacity batteries in parallel to achieve the larger battery capacity required by UPS. If multiple groups of batteries with poor performance uni...[Details]

LED lamp beads are voltage-sensitive devices and capacitive loads. In actual work, the current accuracy is required to be high, which is one of the main issues affecting the luminous efficiency and...[Details]