1. Concept and characteristicsconceptDC-DC refers to Direct Current. It is a device that converts electrical energy of one voltage value into electrical energy of another voltage value in a DC circuit...
I have a question about 51 assembly. Please help me check if the following statement is wrong.P1L1 EQU 20H 105.6WIs the red part in the above sentence wrong? Should it be written asP1L1 EQU 20H ; 105....
PuTTY is the most popular SSH client for Windows. One of the drawbacks of PuTTY, and probably the only drawback, is that every time you open a new connection, you need to start a new copy of PuTTY. So...
I recently read in the news that many companies such as JD.com and Alibaba have announced layoffs, which gives people the feeling that the current domestic economic cycle is not as good as before. Com...
Most of the inverter power supplies on the market use inverter modules such as UPS and UPK, and the input DC power supply is mostly 12V. The overall price is relatively high, and the output waveform ...[Details]
Games can not only develop people's intelligence and make people's minds more responsive, but also meet people's spiritual needs (such as adventure, creativity, emotion, etc.). They are very entertain...[Details]
Japan is one of the countries that developed solar building materials earlier. It has developed solar tiles by forming an electrode layer composed of tin oxide or indium oxide on the glaze surface,...[Details]
The compiled MCU files need to be downloaded to the MCU through download software. Here I will briefly introduce the use of 2 types of MCU download software.
Downloading process of STC microcontrolle...[Details]
For many years, hardware keys have been regarded as the last line of defense for protecting personal privacy and sensitive data. However, the latest research has found that these "security hardwa...[Details]
Abstract: Programmable DSP (Digital Signal Processor) has been widely used in digital telephones. This article explains the application of DSP in current standards and looks forward to the futur...[Details]
More and more iPhone X users are complaining that their devices are getting closer to the limit of serious battery aging and need to find a replacement battery as soon as possible. The iPhone ...[Details]
With the use of photovoltaic systems in households and small commercial power stations in Europe and Australia, household systems in some countries such as Germany, Italy, Australia, and France hav...[Details]
After being dominated by foreign Tier 1 companies for a long time, China's independent wire-controlled chassis manufacturers finally have a say. On December 13, 2019, Shanghai Nasen Automotive Elec...[Details]
At present, countries around the world are committed to the development of smart grid infrastructure in order to ensure the safety, quality and economy of electricity use. However, one of the importa...[Details]
1. Introduction to the main functions of photovoltaic junction boxes The photovoltaic junction box is a connector between the solar cell array composed of solar cell modules and the solar charging co...[Details]
On July 24, Beijing time, according to the US technology website The Information, two people familiar with the matter said that Apple is developing a foldable iPhone, which may be released as early...[Details]
Reporter Zhou Yifan In the face of the epidemic, the market sentiment brought about by global panic is like a wild horse running wild. On March 13, A-shares fluctuated widely. The Shanghai Composit...[Details]
Using computers, sensor technology and wireless communication, this paper designs a wireless sensor network monitoring system for PCB electroplating current detection. The monitoring system uses NR...[Details]
250-380 VDC input, 250W output high efficiency power supply circuit
Figure 43 shows a circuit with an input voltage of 250 V to 380 VDC, using TOP249 to provide 250 W (48 V@5.2 A) output power w...[Details]
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