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In order to realize wireless automatic alarm and monitoring of major safety places, based on the basic principle of pyroelectric infrared sensing, a detector for receiving infrared radiation from m...[Details]
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Recently, Apple announced its environmental performance in the past two years: through redesign, Apple completely eliminated the plastic film covering the iPhone box, reducing the use of 600 tons of ...[Details]
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Component Selection
Except for BG2, which is a PNP germanium diode, the other crystal diodes in the circuit are NPN silicon diodes. The penetration current of these diodes should be as small ...[Details]
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Machine vision applications in factory automation range from handling safety and maximizing production to providing predictive maintenance for machines. On the production side, tasks may include in...[Details]
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ASA (VI curve) test is one of the most important test functions on the circuit online maintenance tester. This article briefly introduces the principle of ASA test from the perspective of use. It m...[Details]
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1 Introduction With the rapid development of computer application technology, mobile storage devices have been widely used. CF (Com PAC t Flash) card was born in 1994 with its design concept ...[Details]
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An independent lab claims that the iPhone 11 Pro emits radiation more than twice as high as the Federal Communications Commission (FCC) allows, but poses no apparent risk to public health, Apple Insi...[Details]
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When using an external clock, modify the default configuration in stm32f4xx_hal_conf.h according to the actual size of the external crystal oscillator used: #if !defined (HSE_VALUE) #define HSE_V...[Details]
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In recent years, the country has attached increasing importance to the semiconductor industry and has identified integrated circuits as one of the key strategic industries for development. However, t...[Details]
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LG Electronics (LG) and Magna International (Magna) have signed a cooperation agreement to establish a new joint venture, LG Magna e-Powertrain, headquartered in Incheon, South Korea. The two parties...[Details]
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Speakers, as the terminal equipment of audio, are like a person's voice, which largely determines the quality of a set of audio equipment. For example, it is hard to imagine that a person who is as...[Details]
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Switching power supply ripple generation Our ultimate goal is to reduce the output ripple to a tolerable level. The most fundamental solution to achieve this goal is to avoid the generation of ripple...[Details]
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Focusing on the three-part pure electric vehicle drive technology, the author is sorting out the key technologies in the development process of new energy powertrains to provide a theoretical basis...[Details]
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Recently, four ministries and commissions including the Ministry of Industry and Information Technology jointly issued the "Notice on Carrying out Pilot Work on the Access and Road Access of Intellig...[Details]
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As an important component of electric vehicles, power batteries have very high requirements for temperature, safety and performance. Therefore, the assembly of power batteries has also become the f...[Details]