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When every engineer first starts using an oscilloscope, they start by measuring the signal quality of the most basic digital signal. Find a board, connect a clock signal, a data signal, and measure...[Details]
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1. What are the similarities and differences between the lumen efficiency of a single LED and the lumen efficiency of a lamp that uses LED as a light source?
For a specific LED, with a speci...[Details]
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With the rapid development of automotive technology, SoC
plays an increasingly important role in
automotive electronic
systems. From driver assistance systems to
autonomous driving
t...[Details]
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Since the high-bit addition of a serial multi-bit adder has to wait for the carry of the low-bit, the speed is limited by the carry signal and becomes slow. People have designed a multi-bit carry-lo...[Details]
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In recent years, semiconductor light sources are gradually entering the lighting field as a new type of solid light source. According to the principle of solid light emitting physics, the luminous ...[Details]
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1. PIC instruction cycle calculation: Assume the operating frequency is: F (MHz); One instruction cycle is 1/(F/4) seconds. PIC instructions That is, assembly instructions, the number of inst...[Details]
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A Honor phone with model number TEL-AN00 previously appeared on the website of the Ministry of Industry and Information Technology. It supports 5G. It is reported that this product is likely to be th...[Details]
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SCHOTT AG, a world-leading specialty glass and glass-ceramic technology group, increased its sales in China by 11% in 2018/2019 to more than RMB 2 billion (EUR 261 million; including Hong Kong SAR). ...[Details]
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UPS
and
DC power supply
are important power supply guarantee equipment for enterprises. Traditional maintenance management includes: ① Daily inspection of appearance, regular replacement o...[Details]
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introduction
The two main types of products launched in the domestic and foreign markets are digitally controlled analog video surveillance and digital video surveillance. The former has very matur...[Details]
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Electronic engineers often ask this question: In system design, a very confusing question is how to choose a reasonable and suitable isolator. Two days ago, the reporter interviewed Zhou Xiaoqi, a se...[Details]
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As the mobile phone industry enters a deep-water stage, competition in the stock market and the decline in user replacement rates have forced mobile phone manufacturers to choose to open up new battl...[Details]
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Equivalent circuit of active filter
Figure 1. Equivalent circuit of active filter
In the active filter, each half-bridge arm is composed of a fully controlled switch device and a diode connect...[Details]
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The baud rate of usart in the STM32 library is multiplied and divided. The initialization code can be used directly, but to improve the efficiency of the code, it is necessary to directly fill the ...[Details]
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It is reported that MLCC manufacturers include Japan's Murata Manufacturing, SEMCO, Yageo, Taiyo Yuden, Eyang, Fenghua High-Tech, Sanhuan, Torch Electronics, as well as TDK, AVX, etc. According to pr...[Details]