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]
1 Introduction
Building Automation System (BAS) is a distributed monitoring system (DCS) designed according to distributed information and control theory. It is the result of the mutual de...[Details]
1 Introduction
With the development of control, computer, communication, network technology, etc., a new control technology, namely fieldbus, has emerged in the field of industrial control...[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]
Today's automotive application developers face numerous design challenges as modern cars add more electronic functionality, while the need for lower power consumption and smaller printed circuit bo...[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]
“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]
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]
With the development of communication technology, traditional analog walkie-talkies can no longer meet people's needs, and the digitization of walkie-talkies is imperative. The rapid development of...[Details]
1 Neutral point grounding method
In the early days, my country stipulated that the neutral point grounding methods of power systems should be divided into two categories: large grounding short...[Details]
1 Introduction
With the increasing requirements of industrialization, the development of distributed systems and the need for communication between control equipment and monitoring equipment, m...[Details]
The figure below is a schematic diagram of a high-efficiency, high
-power-
factor
LED driver circuit
.
This circuit is developed based on HV9931 and adopts non-isolation me...[Details]
In the past, road lighting design was usually based on the designer's experience, and it was difficult to achieve scientific, reasonable, economical and energy-saving. Nowadays, there are many light...[Details]
0 Introduction
Usually,
a bandpass signal
can be represented by the corresponding baseband signal. For example, if Sm is used to represent a real bandpass signal, the bandpass signal can ...[Details]
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