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The weld joint coefficient refers to the ratio of the strength of the butt weld joint to the strength of the parent material. It is used to reflect the degree to which the strength of the weld joint ...[Details]
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Abstract: The MT8888 chip is a low-power, highly integrated DTMF signal receiving and transmitting chip produced by MITEL using CMOS technology. It can be easily interfaced with a microcomputer....[Details]
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News Highlights
The first NI rugged rack-mount controller and new PXI Express remote controllers have high-speed data read and write performance, expanding the PXI platform’s PC control capabilit...[Details]
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The quality of a full-color
display screen
can be judged from the following aspects:
1. Flatness
The surface flatness of the LED display screen
should b...[Details]
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Principles for Selection of Shake Tables (1) Selection of rated voltage level. Generally speaking, for equipment with a rated voltage below 500v, a 500v or 1000v megger should be used; for equipment ...[Details]
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This is definitely a question that many people are concerned about. Let's take a look at an example to see what kind of conclusion we will get:
The test methods are as follows:
The main loo...[Details]
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1. Problems in variable frequency power supply application In the field of industrial speed regulation, compared with traditional mechanical speed regulation, variable frequency power supply has...[Details]
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The charging device of electric vehicles is equivalent to the filling station of automobile fuel. When China began to vigorously build wired charging piles and charging stations, three types of non...[Details]
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EMI / Anti-interference Design
EMI 是当今许多设计人员所面临的一项重大挑战。如果不能顺利通过 EMI 测试，则将导致项目成本显著增加和进度迟缓，因此高水平的工程师会在设计的早期寻求减低 EMI 的方法。因为开关稳压器具有高能量效率，所以越来越多人采用，对EMI 的影响也在加重。一种能有助于抑制与开关电源相关之 EMI 的简单方式是采用一个多...[Details]
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According to Nidec’s official WeChat account, Nidec Corporation and Renesas Electronics Corporation have recently reached a consensus to jointly develop semiconductor solutions for the new generation...[Details]
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With the continuous development of electronic technology, a large number of electronic technology instruments and equipment have appeared in today's electronic technology industry. These devices play...[Details]
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In the pinout diagram of the STM32 data sheet, you can see that PC14 and OSC32_IN share a pin, and PC15 and OSC32_OUT share a pin. Their usage is as follows:
When LSE (low-speed external clock signal...[Details]
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AbstractThis report presents a reference design of a 7W AC/DC LED lighting driver with TRIAC dimming. The solution uses a single-stage power factor correction (PFC) inverter topology with primary-sid...[Details]
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1. Grounding Problem
The grounding requirements for the PLC system are relatively strict. It is best to have an independent dedicated grounding system. Also, attention should be paid to the re...[Details]
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On October 22, the largest energy storage power station in Shizhu County, Chongqing, the Shizhu County 110 kV Jinzhang Shared Energy Storage Power Station (Phase I), was officially put into operation ...[Details]
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