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Insulation resistance tester: It is an ideal instrument for measuring the insulation resistance of transformers, mutual inductors, generators, motors, power capacitors, lightning arresters, etc.DMG ...[Details]
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The automatic dialer is an intelligent alarm monitoring device. It uses a single-chip microcomputer as its core device and can send alarms to designated receivers at any time using wireless pagin...[Details]
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Development and Reform Office Energy No. 718
To the Development and Reform Commissions, Energy Bureaus, competent industrial and information technology departments, and market supervision dep...[Details]
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When the STM32F105 is configured as a USB device, the PA9/OTG_FS_VBUS is used to detect the presence of a USB host. STMicroelectronics design evaluation shows the PA9/OTG_FS_VBUS pin connected to 5V ...[Details]
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Today, which one is more secure, iOS or Android? It seems that there are different answers. Going back a few years, iOS has firmly established itself as the number one mobile phone system security th...[Details]
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——Interview with Wang Zhengtao, Chairman and Party Secretary of State Grid Information and Communication Industry Group Co., Ltd.
Our reporter Qiu Shi
Reporter: What role does State Grid ...[Details]
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51 MCU ADC0809 voltmeter (12864 display, program + simulation) parallel port; 0~5V first normal working diagram above : maximum voltage value above gradual voltage value (maximum to minimum) ...[Details]
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When measuring the inverter efficiency, the first thing to note is that it is necessary to consider the problem from a comprehensive perspective, rather than just starting from testing the maximum eff...[Details]
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For Qualcomm, their unique patent model makes them easy targets for heavy penalties. In fact, they have indeed suppressed many terminal manufacturers because of their patents. According to the late...[Details]
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Although advertisements are the livelihood of many free websites and app operators, they should not appear on mobile phones that consumers spend a lot of money on. However, the media Android Police r...[Details]
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Abstract: A more detailed analysis and comparison of the factors affecting the reliability of military PWM switching regulated power supplies is made, and some suggestions for improving the reli...[Details]
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On May 8, according to blogger @手机陶瓷达人, Qualcomm is ready to come back. The reason why it did not make efforts in the first half of the year was that it suffered from shortages. However, in the third...[Details]
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Figure 4 Feed status sensor circuit
As shown in Figure 4, the working process of the feed state sensor is as follows: L7805 is a DC voltage stabilizing chip, which provides the working po...[Details]
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Four of the five major U.S. technology giants, Google's parent company Alphabet, Apple, Amazon, and Facebook, have already been involved in autonomous driving. Last week, autonomous driving company C...[Details]
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A variable frequency drive (VFD) is an electronic device used to control the speed of a motor. It achieves speed regulation of the motor by changing the frequency and voltage of the motor power sup...[Details]
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