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As harmonic reduction standards become more widely adopted, more
power supply
designs incorporate power factor correction (
PFC
) functionality. Designers face the difficult tas...[Details]
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1.
History of
LED
50 years ago, people already knew
the basic knowledge that
semiconductor
materials can generate light. In 1962, Nick Holonyak Jr. of General Elec...[Details]
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1 Introduction to the ADC inside the ADμC812 MCU
1.1 ADC Circuit
The ADC conversion block inside the ADμC812 contains an 8-channel, 12-bit, single-power A/D converter with a 5μs conve...[Details]
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In μC/OS, the interrupt service subroutine must be written in assembly language. However, if the C language compiler used by the user supports online assembly language, the user can directly put the i...[Details]
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1 Introduction In the power system, voltage and frequency are two important parameters that reflect the power quality of the power system. At the same time, in the relay protection industry, voltag...[Details]
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尝试分析机器学习模型在什么时候、以什么方式、由于什么原因失效,我们把这称为「误差分析(error analysis)」。对科研人员来说,他们需要通过误差分析选择后续的改进方向;模型的实际使用者们也需要根据误差分析来确定模型部署的许多细节。由于误差分析对后续的行动方向有显著的影响,如果误差分析中出现了偏倚,或者误差分析不完整,很可能会带来我们不想看到的后果。 The current state...[Details]
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As the cost of producing LEDs decreases, their use in a variety of applications, including handheld devices, automotive, and architectural lighting, is increasing. Their high reliability (over 50,0...[Details]
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With a starting price of 1,999 yuan, Redmi K30 5G has become the lowest-priced 5G mobile phone at present, and it is also the first 5G mobile phone priced below 2,000 yuan. On April 21, accor...[Details]
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Light-emitting diodes have long been used as low-cost indicator lights in a variety of electronic products. Today, they have become powerful light sources for indoor lighting, signage, display screen...[Details]
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Due to the decline in semiconductor prices caused by oversupply and the setbacks in its mobile phone and chip businesses, Samsung's operating profit in the second quarter plummeted 56% compared with ...[Details]
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The FPD digital angiography system replaces the traditional II-TV imaging chain with FPD, eliminating multiple conversions in the intermediate links (II, optical system, camera, analog/digital conv...[Details]
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Time Domain Analysis Method for Control Systems--Transient Response of Second Order Systems
3.5 Transient Response of Second-Order Systems
...[Details]
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Many people often focus on the lumens of LEDs, but pay less attention to the heat dissipation of LED lamps. In fact, the lumens of LEDs are increasing rapidly. In 2006, the lumen per watt of mass...[Details]
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"Gas leak alarm controller" is also called "gas leak automatic alarm closing device" and "combustible gas detector". At present, it can be roughly divided into four types: independent combustible ga...[Details]
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This manual is applicable to: iTOP-4412 Elite Edition Android4.0.3 system. In the "RFID_Module_v1.1.zip" hardware data compression package, Cadence format schematics and PCB, AD format schematics and...[Details]