Preamplifier circuit noise analysis

The role of the preamplifier in the audio system is crucial. This article first explains how engineers should properly select components when designing a preamp for a home audio system or PDA. Subsequently, a detailed analysis of the source of the noise provides guidelines for

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Product evaluation: HJ-TGD20 LED flood light

The LED flood light makes the illuminance on the designated illuminated surface higher than the surrounding environment. Also known as spotlight. Usually, it can aim in any direction and has a structure that is not affected by climatic conditions. It is mainly used in large-sc

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Networking solution using NPORT serial port server

I. Introduction As a short-range transmission, serial communication is widely used, but it has the disadvantages of small transmission rate and short transmission distance, which greatly limits the development of the entire communication business; and Ethernet has the advanta

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See how NFC changed your life

With the advent of the Google Wallet service, mobile payments have become a reality. Isis, produced by the collaboration of AT & T, T-Mobile and Verizon Wireless, followed. However, the credit is actually due to a technology that makes mobile payments possible, called Near

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