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Comparison of FDD and TDD transmission Frequency Division Duplex (FDD) FDD requires two independent communication channels (i.e., transmit frequencies) separated by a guard band to minimize co-chan...[Details]
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On December 18, Mingwei Electronics was listed on the Science and Technology Innovation Board of the Shanghai Stock Exchange. The company's stock code is 688699, the issue price is 38.43 yuan per sha...[Details]
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1 Introduction A spherical photometer is an efficient and fast device for measuring the luminous flux and luminous efficacy of LED products. It is used by metrological institutions, product tes...[Details]
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Basic knowledge of mounting on FPC
The process requirements for mounting SMD on flexible printed circuit boards (FPCs) are as electronic products are miniaturized. Due to the l...[Details]
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The car's active braking system rarely intervenes in driving, but when there is danger, its intervention must be forceful. From July 2022, all new cars rolling off the assembly line in the EU must b...[Details]
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0 Introduction
All the single-chip microcomputers currently compatible with Intel 8031 instruction system are collectively referred to as 51 single-chip microcomputers. Intel's 8031 single-...[Details]
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● Rapid detection of household inverter air conditioner external unit electrical box
The electric control system of a household inverter air conditioner mainly consists of the internal mainboa...[Details]
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In the Planet article: Electromagnetic Compatibility - Basic Concepts, we mentioned that EMC (Electro Magnetic Compatibility) refers to the ability of electronic and electrical equipment or systems ...[Details]
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Most people are excited about new features in smartphones, such as under-display cameras, but 2020 also saw some questionable design trends that users may not want to see continue into 2021. For...[Details]
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On January 16, 2016, the "2016 China Energy Development and Innovation Forum" was grandly held in Kunming, Yunnan, with the National Development and Reform Commission and the National Energy Admini...[Details]
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The dry lint tester is also called a twist tester. This equipment is used to evaluate the lint test of nonwoven fabrics under dry conditions. It is mainly applicable to the evaluation of the lint per...[Details]
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From ID cards, product anti-counterfeiting, community access card systems, ETC automatic toll payment systems on highways, and luggage check-in tags for flight attendants, RFID technology has already...[Details]
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The first type of electric vehicle motor control solution is single motor dual voltage level, and the second type is dual (multi) motor dual voltage level. Although there are differences in such desi...[Details]
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Introduction
Blood pressure is an extremely important health indicator, and the accuracy of blood pressure measurement is directly related to people's health. The country has listed sphygm...[Details]
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Thermal Analyse and Design of High-Power LED
Abstract: This paper introduce the heat produce and conduct of High-Power LED lighting source,then conclude the formula for calculating heat ...[Details]
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