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1. Instrument model: Tektronix TDS3054C digital phosphor oscilloscope; 2. Fault description: The first screen is white after power on; 3. Testing process: 1. Disassemble the oscilloscope, clean t...[Details]
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Impedance selection of audio isolation transformer
The impedance selection of the audio isolation transformer needs to consider several factors, including the frequency range of the audio sign...[Details]
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Han's Laser recently released its 2019 first half performance forecast. The company expects the net profit attributable to shareholders of listed companies in the first six months of 2019 to be 357 m...[Details]
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MPEG-2 decoding
MPEG-2 decompression circuit includes video, audio decompression and other functions. In video processing, it is necessary to complete the decoding of the main picture and sub-...[Details]
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Many embedded systems require precision current measurement. Different applications can be achieved with different sensors. Current measurement sensors that are currently used more often include: ligh...[Details]
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ITI is one of the world's leading system simulation software and engineering companies. The SimulationX standard tool is used to evaluate the interaction of all components in a technical system and...[Details]
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The wiring method of the servo motor encoder plug wire is crucial to ensure the normal operation and precise control of the servo motor. This article will introduce the wiring method of the servo m...[Details]
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Sant Cugat del Valles, Barcelona, March 2022 – Ignion, a leading IoT antenna innovator based in Barcelona, today announced the launch of Antenna Intelligence Cloud, a cloud service that brings cl...[Details]
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For consumer or wearable products, the integration of audio systems is getting higher and higher, which makes it difficult to debug problems in one step. We need to have a clear understanding of th...[Details]
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Abstract: Aiming at the problem of DC voltage stability of the uncontrolled rectifier bridge of the dual-winding asynchronous generator, a new method for compensating the reactive excitation curren...[Details]
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Overall system design
The hardware part is based on Samsung's ARM9 chip S3C2410 and South Korea's dedicated video chip AT2042. S3C2410 mainly implements system control functions, such as confi...[Details]
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音箱是整个音响系统的重要组成部分，价值达全系统的一半左右所以须妥善对待。
①避免放置于阳光直接暴晒的场所，不要靠近热辐射器具，如火炉、暖气管等，也不要放置于潮湿的地方。
②音箱在连接到放大器之前，应先切断放大器的电源，以免损坏扬声器。
③与放大器的馈线连接应稳妥，在受到拉拽时不能掉下，正负极性不能接错。连接扬声器的馈线要足够粗，不宜过长，以免造成损耗和使阻尼变坏。以偏离频率...[Details]
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Digital blogger @肥威 revealed a real photo of the Red Magic 6 gaming phone today, showing that the phone will use a horizontally arranged rear triple or quad-camera "AI" lens module. In addition...[Details]
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Unlike consumer-grade products, automobiles will run in harsh environments such as outdoor, high temperature, high cold, and humidity. Their design life is generally 15 years or 200,000 kilometers, a...[Details]
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The RF card terminal uses TI's CC2430 as the wireless RF chip, which is the first RF system-on-chip produced by Chipcon that complies with 802.15.14/Zigbee technology. It is suitable for various ZigB...[Details]
Analog electronics
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