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"Compared with the month-on-month growth of 82.0% in March, the output of ternary batteries in April fell by 21.4% month-on-month, becoming the main reason for the decline in output in the entire bat...[Details]
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In the field, the interference of frequency converters is quite frequent and serious, and even makes the control system unusable. The working principle of frequency converters is destined to genera...[Details]
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After learning, I found that the timer function of stm32 is really powerful. A small summary is convenient for reference in the future. Stm32 timers are divided into three types: tim1 and tim8 are ad...[Details]
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Interrupts and exceptions definition Except for User and System, all working modes in ARM are exception modes. The exceptions here are broad and include the following three situations: External Int...[Details]
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1 Introduction
With the development of information technology, inverter power supplies are increasingly widely used in the fields of communications, military, aviation, aerospace, etc. Tradit...[Details]
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China Energy Storage Network News:
On February 22, the unveiling ceremony of the State Grid Corporation of China-Zhejiang University Smart Power Energy Research Institute was held at Zhejia...[Details]
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Why are there two startup methods? This is determined by the different characteristics of the two types of FLASH. NAND FLASH has a large capacity and the cost of storing unit bit data is much lowe...[Details]
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The swept frequency superheterodyne spectrum analyzer converts the input signal to the intermediate frequency (IF) through a mixer, and performs amplification, filtering and detection processing at t...[Details]
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Commonly used standard terms:
1. Rated voltage (Un)
The ac rms value or dc voltage at rated frequency that can be continu...[Details]
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On the morning of January 8, the well-known whistleblower OnLeaks recently released the concept design drawings of "iPhone 9" or "iPhone SE 2" on the Internet. OnLeaks is a well-known whistl...[Details]
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【Online Seminar】 Current status and future trends of emerging automotive markets - Focus on China, Russia, the Middle East and Africa Date: September 28, 2021 Time: 15:00 – 16:25 At pres...[Details]
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Here is an amplifier suitable for indoor TV antennas. It has a simple circuit but works well.
1. Circuit Principle The circuit of the indoor TV antenna amplifier is shown in Figure 1. It is c...[Details]
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On the 22nd, the board of directors of Yiwei Lithium Energy reviewed and passed the "Proposal on the Subsidiary to Sign a Contract with the Jingmen High-tech Zone Management Committee".
Hubei ...[Details]
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PCR qualitative screening test method
In 1996, Meyer Rolf et al. of the University of Bernstein in Germany demonstrated the possibility of PCR detection of genetically modified foods. The genetic...[Details]
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Overview
New energy vehicles can be divided into pure electric vehicles (EV) and hybrid electric vehicles (HEV/PHEV) according to their power sources. The vehicle controller is the core contro...[Details]
stm32/stm8
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