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　　The circuit of a small household neon lamp using an electronic ballast for an energy-saving lamp is composed of a bridge rectifier part, a high-frequency oscillator part and an output circuit. The ...[Details]

There were two previous reports about the actual memory size of the iPhone 11 Pro and iPhone 11 Pro Max. The first was the 4GB memory identified by the benchmark software, and the second was the rumo...[Details]

According to foreign media reports, although the outbreak of the new coronavirus has dealt a heavy blow to Apple's smartphone business, the implementation of safety precautions such as lockdowns and ...[Details]

OLYMPUS Stream image analysis software now uses the power of artificial intelligence to introduce next-generation image segmentation technology to industrial microscope inspection. Version 2.5 of thi...[Details]

Then adjust the input until the amplifier only delivers 1.5W into the 8 ohm load . This way, it is easier to see the crossover distortion effect. The Quad results are as follows:   We then co...[Details]

Introduction: If you want to use some variables in a C program file but their prototype definitions are written in another file, then these variables must be declared as "extern" external types in th...[Details]

Preface In fast reactive power compensation and harmonic filtering devices, thyristors are used as actuators to switch capacitors as TSC circuits. The previous article analyzes the main...[Details]

　　At a time when the United States is taking unconventional measures to contain Chinese integrated circuit companies, it is of great strategic significance for China to accelerate independent chip re...[Details]

Things to note when using a megometer for testing are: 1. Before testing, the equipment under test must be cut off and short-circuited to ground for 2 to 3 minutes. It is never allowed to use a megge...[Details]

1 Introduction In A/D converters, the important performance indicators of comparators are operating speed, accuracy, power consumption, input offset voltage, return noise generated during positive ...[Details]

1. Introduction In recent years, with the rapid development of microwave and millimeter wave technology, higher requirements have been put forward for broadband microwave and millimeter wave test in...[Details]

       When did mobile phone screen protectors become popular? It seems that no one can tell the exact time point. 　　However, in my impression, the film business seemed to have existed in the resisti...[Details]

As more and more electronic consumer manufacturers join the increasingly prosperous LCD industry, competition among whole machine manufacturers is becoming increasingly fierce. For an LCD TV, since...[Details]

       Not long ago, the Pwn20wnd team released unc0ver v4.0.0, which supports jailbreaking for iOS 13 devices with A12~A13 processors. In other words, the iPhone XS series, iPhone XR, iPhone 11 seri...[Details]

With the continuous integration of many technological breakthroughs and new streaming services, and the growing prosperity of the smart home and smart speaker markets, consumers' demand for audio i...[Details]