Regarding the 125Khz low-frequency card, the wavelength of its electromagnetic wave is 2400 meters. Is the coil of the card reader an antenna or a mutual inductor? If it is an antenna, then the optima...
As shown in the figure, the half-bridge inverter topology
In the case of power failure, if the ±Vbus bus voltage is greater than 36V, the drive signals of the two power tubes Q1 and Q2 still exist, ca...
Should the feedback loop of the buck switching power supply include the ferrite bead connected to the output terminal in the loop? What impact will it have if it is included? Generally, it should not ...
I recently looked at USB. I wonder if you have experience in learning USB. Can you share some tips? For example, what are the precautions and difficulties?...
I just started to use msp430 and don't understand many things. I hope experts can give me some advice on how to read and write ds1302 with msp430f149. The program is as follows: #include
typedef unsig...
The circuit shown in the figure is a three-digit tachometer used to measure low frequency signals with a repetitive time interval of 0.235 to 15 seconds. The tachometer has a speed range of 4 to 255 r...[Details]
The role of digital-to-analog converters
Real-world analog signals, such as temperature, pressure, sound, or images, are constantly being converted into digital form that is easier to store, p...[Details]
introduction
Video surveillance systems are widely used in industrial, military and civil fields, playing an important role in the security and environmental monitoring of these industries...[Details]
summary
Theoretically explains how to set up a PFC boost regulator using a current sensing transformer with the UCC3817 control IC.
1. Schematic
The schematic diagram is show...[Details]
A well-designed electronic load is not designed just for use in the lab; it should be carefully designed and built to test actual power systems. This is true for military portable systems, such as ...[Details]
1. Introduction
The UCC28051 reference design is a 100W offline AC/DC voltage converter with power factor correction (PFC). This power module design is intended to illustrate how to proper...[Details]
Among the many candidate standards for China's mobile TV, the CMMB standard proposed by the Broadcasting Science Research Institute of the State Administration of Radio, Film and Television is aime...[Details]
Abstract: This paper introduces the origin and new features of MP4, and introduces the core audio compression technology MPEG-2 AAC (Advanced Audio Coding) based on MP4. Finally, it briefly summari...[Details]
With the continuous development of the national economy, the application of variable frequency speed regulation devices is becoming more and more extensive. How to break the monopoly of foreign produc...[Details]
Abstract:
The signal flow of the external transceiver in the WCDMA/TD-SCDMA protocol is analyzed. The analysis results show that most of the functional modules in the WCDMA/TD-SCDMA external tr...[Details]
As AC induction motors become the preferred choice for industrial motors, the need to reduce power consumption in all aspects of the design continues to emerge, so improving the efficiency of these...[Details]
0 Introduction
With the rapid development of modern science and technology and the progress of society, service robots are becoming more and more closely connected with people's lives,...[Details]
As process nodes and die sizes continue to shrink, the number of consumer electronic products using flip-chip packaged IC devices is increasing. However, flip-chip packaging manufacturing rules hav...[Details]
Preface
In people's daily life and work, the amount of electricity consumed by computers is very considerable, so the industry pays great attention to energy saving and consumption reduct...[Details]
1 Introduction
Motion controllers are core motion control components commonly used in mechatronic equipment such as CNC machine tools and robots. Modern CNC technology has put forward higher a...[Details]
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