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LED is a semiconductor component, the core of which is a chip composed of p-type and n-type semiconductors. There is a transition layer between the p-type semiconductor and the n-type semiconductor...[Details]
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Puyuan spectrum analyzers are widely used in many fields such as enterprise research and development, factory production, education and teaching. Especially in the era when domestic instruments are b...[Details]
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The LED general lighting market has whetted everyone's appetite and attracted so much attention today for the following three reasons: first, its market is large enough; second, the first year of the...[Details]
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#include reg52.h //Call the microcontroller header file #define uchar unsigned char //Unsigned character type macro definition variable range 0~255 #define uint unsigned int //Unsigned integer type m...[Details]
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Recently, Beijing Green Vanadium and Huadian Liaoning Diaobingshan Huadian Clean Energy Company signed a cooperation agreement on the vanadium battery energy storage project. The two parties have c...[Details]
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1. Power factor control circuit and UC3854
⒈Definition of power factor
PFC is power factor correction. Power factor (PF) refers to the ratio of AC input active power (P) to in...[Details]
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After so many years of contact with lamp manufacturers, I often feel that lamp manufacturers do not want to buy good LED power supplies , but they do not know how to distinguish whether the purch...[Details]
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On June 2, National Technical issued an announcement stating that the company's wholly-owned subsidiary Shenzhen Qianhai National Investment Management Co., Ltd. (hereinafter referred to as "National...[Details]
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Intersil Corporation has introduced the ISL8200M, a compact and scalable power module . This flexible new module provides designers with an easy-to-use universal power solution that can meet a wide v...[Details]
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Jingrui Co., Ltd. released its performance forecast for the first three quarters of 2019. The announcement shows that the net profit attributable to shareholders of the listed company in the first ...[Details]
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Function and performance (1) Fully automatic intelligent control and protection with self-recovery protection function; fully electronic switch protection, no need for external fuses or other prot...[Details]
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Motorola's first 5G foldable screen mobile phone Razr 5G was officially released in the United States, priced at US$1,399 (approximately RMB 9,600). It is reported that the Motorola Razr 5G continu...[Details]
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An electronic oscilloscope is an instrument used to measure the shape of alternating current or pulse current waves. It consists of a tube amplifier, a scanning oscillator, a cathode ray tube, etc....[Details]
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Recently, the first PACK and the first batch of 162Ah batteries rolled off the production line at the Honeycomb Energy (Chengdu) Power Battery Manufacturing and Southwest R&D Base, located in the adva...[Details]
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An oscilloscope is an essential test device in electronic circuit testing. It can depict a very abstract, invisible periodic signal or the change process of the signal state as a specific image wavef...[Details]
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