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1 Relay Introduction
1.1 Structure and working principle of relay
Electromagnetic relay is a common relay, among which the 4098 type ultra-small relay is the most w...[Details]
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A previous article introduced the principle of LED luminescence. We only need to set the STC89C52 pin level corresponding to the light-emitting diode to a low level. OK, let's light up D1 D3 D5.
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Recently, Tencent Technology (Shenzhen) Co., Ltd. disclosed a number of patent information, including the patent for "autonomous driving methods, devices, equipment, media and vehicles based on artif...[Details]
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Recently, the 2019 World Artificial Intelligence Conference (2019 WAIC) was grandly opened at the Shanghai World Expo Center, presenting a picture of the artificial intelligence scene of the future A...[Details]
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Comparing and selecting low-power microcontrollers (MCUs) based on the current consumption specifications listed in the data sheet is a difficult task. In most cases, developers selecting an MCU wi...[Details]
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LED is a semiconductor device that emits incoherent narrow spectrum light when forward biased, producing an electroluminescent phenomenon. In other words, the solid phosphor directly converts elect...[Details]
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The terminal controller mainly realizes two functions: one is to control the integrated camera and pan/tilt according to the instructions of the main controller, and the other is to collect the vo...[Details]
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By using the comparative characteristics of the operational amplifier input, the operational amplifier tester can quickly and accurately determine the quality of the measured operational amplifier, ...[Details]
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-In recent years, domestic CPU manufacturers have been forging ahead and making continuous breakthroughs in many aspects such as technology, performance, and ecological construction, building a new f...[Details]
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Motors are the electrical components that electricians come into contact with most in their daily work. During daily maintenance and installation, how to quickly detect the quality of a motor and w...[Details]
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introduction The emergence of excavators has freed humans from heavy physical labor. However, traditional excavators are complex to operate and require high skills from the operator. People have been...[Details]
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The medical call system is a calling tool for patients to make requests when they need care or diagnosis. It can quickly convey the patient's request to the doctor or nurse on duty. It is one of th...[Details]
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On May 21, the Honor 20 series will be launched in London, which is the global debut of the series of mobile phones. The Chinese version will be held in Shanghai on May 31. According to the official ...[Details]
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With the development of technology and the integration of products, voice chips have gradually replaced a variety of voice devices in various applications. More and more companies are beginning to ...[Details]
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DC regulated power supply design circuit
This DC regulated power supply circuit consists of a bridge rectifier circuit and a three-terminal voltage regulator circuit.
Integrated DC regulated p...[Details]
Microcontroller MCU
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