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I. Experimental Purpose 1. Learn how to use AC voltmeter, AC ammeter and power meter to measure the AC equivalent parameters of components. 2. Learn how to connect and use the power meter. II. Princi...[Details]
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Regarding the recent rumors that Apple intends to deploy RISC-V and avoid the Arm architecture, Arm Taiwan President Zeng Zhiguang said on the 7th that he would not comment on a single customer, but ...[Details]
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Driver IC Introduction The PT6913 chip uses a linear constant current to control the output current. It has an internal integrated power MOS, and the output current can be set to 10mA~60mA throu...[Details]
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Soil resistivity is the average value of soil resistance per unit length and is measured in ohm-meters.
Soil resistivity is a commonly used parameter in grounding engineering calculations, whi...[Details]
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As the largest and most advanced semiconductor manufacturing company in China, SMIC's progress in advanced processes has attracted attention, among which the 7nm and below nodes are very important, w...[Details]
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I bought a new energy vehicle for 170,000 yuan, but when it was time to upgrade, I found that a second-hand new energy vehicle could only be sold for 40,000 yuan. What's more ironic is that replacing...[Details]
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Ternary polymer lithium battery refers to a lithium battery whose positive electrode material uses lithium nickel cobalt manganese or nickel cobalt aluminum lithium ternary positive electrode materi...[Details]
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Currently, more and more automotive electronic system application lighting designers are using LED lighting to meet practical and aesthetic purposes. As we all know, LEDs are suitable for various a...[Details]
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The STM32F407VGT6 chip used by the STM32F4Discovery development team has an internal FLASH of 1M. After the code is burned, there is still a lot of remaining. Effective use of this remaining FLASH ca...[Details]
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On October 9, the Chengdu Municipal Bureau of Economic and Information Technology and the Chengdu Municipal Development and Reform Commission issued the "Chengdu New Energy Storage Project Construc...[Details]
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1. Code process 1.1 Serial port code The program flow chart is as follows; The code executed by default_serial_console is as follows: There is the following definition in JZ2440.H: ...[Details]
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In portable digital satellite communication systems, in order to expand transmission capacity and improve transmission efficiency and meet the needs of transmitting several services at the same tim...[Details]
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EMC stands for "Electro Magnetic Compatibility". Electromagnetic compatibility testing refers to the ability of a device or system to work properly in its electromagnetic environment and not cau...[Details]
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#ifndef _DELAY_H_ #define _DELAY_H_ #define uint unsigned int #define uchar unsigned char void delay_1us( void ); //1us delay void delay_1ms( void ); //nms delay void delay_nus( uint n ); //1ms ...[Details]
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LED
lighting
is rapidly gaining popularity among users
due to its high luminous efficiency, long service life, simple brightness control and environmental protection
. As a new ener...[Details]