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Smart cards can be divided into three categories according to their security level: memory cards, logic encryption cards and CPU cards, among which CPU cards have the highest security level. As can be...
TI Cup 2019 National Undergraduate Electronic Design Competition Question Analysis and Technical Exchange Seminar : https://training.eeworld.com.cn/course/5726TI Cup 2019 National Undergraduate Electr...
1. Overview of high voltage and high power frequency conversion technologyAfter nearly 20 years of rapid development and application, AC asynchronous motor variable frequency speed regulation techno...
I saw the information about Raspberry Pi Pico on the EEWORLD official account, so I immediately went to the official website to learn more.
I saw the purchase information at the bottom, and then I imm...
One of the more troublesome problems of hydrogen energy batteries is the escape of hydrogen. Hydrogen is easy to escape when the pressure is high because of its small molecules. The capacity of the cy...
1 Introduction
The automatic fire alarm and fire linkage system (hereinafter referred to as: fire host) is now widely used in various buildings and structures, and fully demonstrates the character...[Details]
Jiwei.com reported on May 31st that Xiaomi announced today that the modified version of Xiaomi 11 Pro has broken two charging records! 200W wired charging 100% in 8 minutes. Wired charging has entere...[Details]
China Energy Storage Network:
After 2012, the growth rate of China's energy consumption demand began to decline, and almost all energy sub-sectors have experienced oversupply and potential ov...[Details]
Some media reported that domestic mobile phone brands collectively lowered their shipment targets and the supply chain cut orders. It said that except for some mid-to-high-end models, the sales of 5G...[Details]
The function of a servo motor is to convert the input voltage signal into an angular displacement or angular velocity output on the shaft. The speed and direction of the control motor change with ...[Details]
1. Introduction: HBJ button tester can be equipped with NK, HP series push-pull force gauges and special fixtures, which are specially used to measure the fastening force of buttons or the destructiv...[Details]
In order to accelerate the diversification of production risks, major OEMs have successively set up factories in Southeast Asia, officially opening the prelude to the supply chain migration trend. In...[Details]
On the 24th, Qualcomm announced the establishment of a 5G ecosystem venture capital fund with a total amount of US$200 million (the same below), and emphasized that it is estimated that 5G can bring ...[Details]
AbstractIn order to meet the technical requirements of electrical impedance tomography system, an improved bipolar optocoupler isolation amplifier based on a single analog optocoupler device is imple...[Details]
With the introduction of electricity reform, the advancement of new technologies and the adjustment of time-of-use electricity prices and other electricity policies, the State Grid Corporation of Chin...[Details]
Xiao Zhihua, General Manager of Hubei Electric Power Communication Company
Hubei Electric Power Communication Company closely follows the State Grid Corporation of China to vigorously promote ...[Details]
After the beginning of industrial society, the manufacturing industry has a huge demand for welding. Manual welding is labor-intensive and has a poor working environment, which has led to fewer and...[Details]
4. ATMEGA16 Timer/Counter IV-(03) PWM test experiment Manual PWM test experiment timer T2 outputs PWM signal from OC2 pin (PD7) after comparing register OCR2, which is divided into 256 levels from 00...[Details]
1. RTC Instructions "RTC" is the abbreviation of Real Time Clock, which means real-time clock. STM32 provides a second interrupt source and an alarm interrupt source. Modifying the value of the co...[Details]