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The working principle and frequency resolution of spectrum analyzer are briefly introduced, and how to select frequency resolution and improve test sensitivity when using spectrum analyzer for testi...[Details]
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OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
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OPPO has announced that it will host a launch event on May 6. At the upcoming event, the company will launch several new products, including the OPPO K9 series smartphones, Enco Air true wireless ear...[Details]
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Instructions for use of frequency converter
The following points should be noted when using the variable frequency speed regulator:
Installation: The installation of the variable frequenc...[Details]
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The CAN in STM32 supports 2.0A, 2.0B, with FIFO, interrupt, etc. Here we mainly mention the internal clock application.
bxCAN is connected to the APB1 bus and uses the bus clock, so we need to know w...[Details]
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Shanghai Analog Semiconductor Technology Co., Ltd. (hereinafter referred to as "Analog Semiconductor" or "Analog") is a leading domestic analog and digital-analog hybrid chip designer. It is reshap...[Details]
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Perhaps the most common IC used in isolated switching power supplies, the TL431 shunt regulator provides a simple, low-cost way to accurately regulate output voltage. Figure 1 shows a block diagram o...[Details]
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Abstract: This paper introduces a variable frequency power supply based on space vector PWM algorithm. The system uses the motor control chip 68HC908MR16 from MOTOROLA, and converts DC power into...[Details]
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The working principle of the beta ray dust monitor JD-PM01. The beta ray dust monitor consists of a sampling pump, cutting, beta source, switching power supply, monitoring system, temperature and hum...[Details]
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On November 9, the Hangzhou Xiaoshan District Government and Xidian University signed a cooperation agreement to jointly build the Xidian University Hangzhou Research Institute, which will be located...[Details]
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1. Main idea:
Because the light-emitting diode has unidirectional conductivity, we use the R × 10k range to measure its forward and reverse resistance. Generally, the forward resistance should ...[Details]
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Nondestructive testing : Factors affecting defect quantification in ultrasonic flaw detection
1. Impact of instrument and probe performance
The quality of the instrument and probe performance has...[Details]
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It is reported that Baidu has obtained permission to test self-driving cars in California and will carry out Apollo self-driving technology tests on urban roads in the state. Currently, a total of ...[Details]
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China Energy Storage Network: The
modern energy system is a concept of development. It is relative to the old energy system dominated by fossil fuels. It has the characteristics of high effic...[Details]
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Abstract: This article uses BYD's patents to understand electric vehicles, on-board chargers and their overcurrent protection circuits. The on-board charger includes an AC/DC converter and a DC/DC ...[Details]