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Part 1 Crystal Oscillator The main function of a crystal oscillator is to generate a stable vibration frequency for use in the microcontroller clock circuit. 1. Working principle of crystal oscilla...[Details]
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If it weren't for the rise of new energy vehicles, perhaps most people wouldn't be interested in batteries that are everywhere around them. The development of the electric vehicle industry and peop...[Details]
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Tesla may be planning a future without side mirrors, as they are not needed for self-driving cars and their autonomous driving systems, according to foreign media reports. Tesla CEO Elon Musk joked t...[Details]
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Transient voltage phenomena
Electrostatic Discharge (ESD)
Electrostatic discharge is usually generated very quickly, and the peak voltage and current can reach very high values. This energy is...[Details]
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1. ADR pseudo-instruction --- small range address reading
The ADR pseudo-instruction reads the address value based on the PC relative offset or the address value based on the register relative...[Details]
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For example: STM32F103C6T7xxx
STM32 – F – 103 – C – 6 – T – 7 – xxx
Part 1: Product series name, fixed as STM32
Part 2: Product type; F means this is a Flash product, there are currently no other ...[Details]
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Abstract: There are many ways to achieve wireless data communication. The currently popular ones are Bluetooth technology and infrared communication technology. IrDA infrared communication is a ...[Details]
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In 2019, Huawei released the 1.0 version of HarmonyOS. It was first launched in Huawei's (or Honor) smart screen series products. A year later, HarmonyOS 2.0 was launched. This time, products equippe...[Details]
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One stress that is often overlooked in a power supply is the input capacitor RMS
current
. If it is not properly understood, excess current can cause capacitors to overheat and fail prem...[Details]
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Some speaker units have no markings or are factory-defective with the positive and negative poles connected correctly. You can use a multimeter to determine the positive and negative poles. Set the ...[Details]
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Xiaomi Civi is a thin and light 5G mobile phone released by Xiaomi in the second half of this year. It can be said to be the most beautiful model in Xiaomi's history. Today, MIUI pushed the M...[Details]
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At present, more than 95% of the dust removal equipment in my country's coal-fired power plants use electrostatic precipitators, and industrial frequency power supplies are generally used in electros...[Details]
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The rapid development of China's economy and science and technology has put great pressure on the United States. For this reason, the United States has repeatedly tightened its policies. Since the an...[Details]
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Abstract: The working principles and functional characteristics of two commonly used APFC chips, UC3854 and UC3855, are introduced, and experimental waveform analysis and comparative research are c...[Details]
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The rapid development of microelectronics and software technology is profoundly changing the design of in-vehicle entertainment control and safety systems, redefining the driving experience.
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