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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]

Introduction As the country increases its efforts to control the atmospheric environment, motorcycle emission regulations will become stricter year by year, and motorcycles that do not meet the...[Details]

introduction At present, the research on micron and nanotechnology is very active, which has led to the rapid development of microtechnology and micro-mechanical electronic system (MEMS) t...[Details]

1 Introduction At present, people have higher and higher requirements for the quality of life. When people are busy with work, soymilk machine is a new type of household beverage machine. It uses so...[Details]

introduction The air compressor unit in the operating area of ​​a lead-zinc mine in Guangdong is a key equipment in mining production. There are six imported Ingersoll Rand CENTAC air compress...[Details]

1. Electromagnetic compatibility design Electromagnetic compatibility refers to the ability of electronic equipment to work in a coordinated and effective manner in various electromagnetic env...[Details]

Modern communication equipment, portable electronic products, laptops, electric vehicles, small satellites, etc. generally use batteries as power sources and are widely used. However, the batteries...[Details]

Any power system that operates from an AC source has an associated power factor, which is defined as the way it draws current from the AC source. The power factor of an AC power system is defined a...[Details]

0 Introduction In microwave, radar, radio and television, and communication systems, the problem of coupling RF power is often encountered. A directional coupler is a directional power divide...[Details]

When programming in C and assembly, there are interface issues between variables and functions in C and assembly. Variables defined in a C program are put into the .bss area after being compile...[Details]

Infrared technology has been widely used in speed measurement systems, and many products have used infrared technology to achieve vehicle speed measurement, detection and other research. When infra...[Details]

1 Power Module Design The power supply in this study is directly connected to the neutral and live wires, and converted through the lnk306 chip. The 13V voltage required by the control mod...[Details]

Fragment velocity is an important parameter for evaluating the explosive effectiveness of warheads. Traditional range fragment velocity measurement systems mostly use multi-channel data acquisition...[Details]

Preface In the current frequency conversion device test scheme, the control of the local oscillator signal source by the measurement system is a very difficult problem (except for the fixed lo...[Details]

Designing with FPGA, DSP or microprocessor is a critical part of the design and also takes the most time. System-level designers can benefit greatly by focusing their main efforts on system design, an...[Details]