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Recently, Aunt Chen completed all six sessions of brachytherapy for cervical cancer in the Department of Radiotherapy of Zhongshan People's Hospital. The last two sessions were painless due to anest...[Details]
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Xiaomi released its financial report for the first quarter of 2023 today, revealing that the company invested 1.1 billion yuan in innovative businesses such as smart electric vehicles. It is reported...[Details]
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1 Introduction A switching power supply is a power supply that uses modern power electronics technology to control the time ratio of the switching transistor to turn on and off to maintain a stable o...[Details]
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Rohde & Schwarz and NOFFZ, a market-leading supplier of custom test systems, have collaborated to integrate the proven R&S compact test range (CATR) technology and the advanced radar echo simulator R...[Details]
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The application of variable frequency speed regulation in control is more and more extensive. The traditional variable frequency speed regulation control is realized by ordinary single-chip micro...[Details]
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Introduction: In the daily use of oscilloscopes, the most frequently used function should be parameter measurement, which can show the signal's frequency, pulse width, amplitude, mean value and oth...[Details]
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Two principles should be kept in mind when selecting a vortex gas flowmeter: one is to ensure production safety; the other is to ensure the accuracy of the vortex gas flowmeter. To this end, three se...[Details]
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1-4-2. Parallel switching power supply output voltage filter circuit As we know above, when the parallel switching power supply does not have an output voltage filter circuit, the amplitude of the ou...[Details]
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In AArch64 state, SP corresponds to the following four physical registers (only one of the following can be corresponding at a time): SP_EL0 and SP_EL1 SP_EL2 SP_EL3 How to use it? 1. If the prog...[Details]
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#include //header file
/***********Macro definition*******************/
#define uint unsigned int
#define uchar unsigned char
/*********Array definition and assignment************/
uchar LED ={
...[Details]
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1. Communication method 1.1 Thread Have you ever thought about how it works when we connect our mobile phones to computers for data transmission? Or when we surf the Internet, how is the data sen...[Details]
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introduction This topic comes from a project of Beijing Puji General Company. Since the company’s existing stand-alone spectroscopic instrument products (such as 1810, T6, etc.) use parallel port pri...[Details]
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How do we choose a power module in power supply design ? The premise of the selection is that we must understand various power supplies and the differences between them, so that we can choose the...[Details]
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Currently, heterogeneous integration of small chips and system-level packaging technology have become hot topics pursued by many OSAT manufacturers. In mid-August, Michael Liu, technical marketing ...[Details]
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The method of connecting a single-phase inverter outputting three-phase 220V to a three-phase motor is as follows:
Determine the input power and output voltage of the inverter
First...[Details]