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German chip supplier Infineon surpassed NXP in 2020 to become the world's largest automotive semiconductor supplier. The report further stated that the top five suppliers including Infineon, NXP an...[Details]
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Clock source selection The OM pins are latched on the rising edge of nRESET. Both pins are grounded in the schematic, so they are both low level. Therefore, the clock source of MPLL comes from the ...[Details]
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1. What is
ripple
?
Ripple is defined as the AC component superimposed on the DC stable quantity in a DC voltage or current.
It has the following main disadvantages:
1.1. It ...[Details]
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Recently, IDC released a report on smartphone shipments in EMEA (Europe, Middle East and Africa) in the first quarter of 2019. According to data released by IDC, the smartphone market in Europe, the ...[Details]
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Abstract：frequency loop of Flyback Convertor, the author discusses how to select wiring strategies and proper components to reduce the negative effect of high-frequency loop towards the function of...[Details]
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Embedded RF Systems Almost every electronic product today is an embedded system, ranging from electronic watches to various complex control systems. Embedded systems are actually dedicated co...[Details]
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I recently participated in a NIO chassis experience event and gained some new understanding of NIO’s chassis design through the introduction. NIO's product line covers both sedans and SUVs, with a ...[Details]
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LG Velvet is a 5G mobile phone launched by LG. It uses the Snapdragon 765G chip, but its price is at the high-end flagship price. Its prices in markets such as Europe and South Korea are all a...[Details]
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Brief introduction to the A/D structure of STM8S microcontroller:
ADC1 and ADC2 (some models do not have ADC2) provide up to 16 conversion channels. Each channel of A/D conversion can perform sin...[Details]
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Switching power supplies are divided into two types: isolated and non-isolated. Here we mainly talk about the topology of isolated switching power supplies. In the following text, unless otherwise spe...[Details]
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Preface I have been using 51, STC and other MCUs for control for several years. I have always used ready-made programs and modified them to achieve the required action. I never seek to understand the...[Details]
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On the morning of March 15, Apple just released the iPhone 13 and the third-generation iPhone SE in new colors, but the company has already started developing the iPhone 14. Here is some news a...[Details]
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In the past two years, the topic of chip gap has been frequently reported in the newspapers, and everyone has a broad understanding of the current situation of domestic chips. But in fact, in the up...[Details]
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Amplifier
The power amplifier, also known as the PA or "amplifier", is the most basic device in the audio system. Its task is to amplify the weak electrical signal from the signal source (...[Details]
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As portable battery-powered devices operate longer and longer, Class D amplifiers are becoming more and more popular due to their inherent efficiency advantages. Today, most Class D systems operate...[Details]
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