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The MagSafe external battery designed by Apple for the iPhone 12 models has a unique feature that has been rumored for a long time but never introduced in Apple products - reverse wireless charging. ...[Details]
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TL431 has a special dynamic impedance and is a more precise controllable voltage source. In the circuit, TL431 is also used as a parallel voltage regulator circuit. Of course, the use method is not...[Details]
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This series of
solar photovoltaic
modules uses HUBER+SUHNER junction boxes with built-in National Semiconductor power optimizer technology.
National Semiconductor Corp. and Green Energy ...[Details]
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U.S. Commerce Secretary Gina Raimondo warned in a conference call with reporters on Friday that the semiconductor shortage will not be resolved quickly, which will cause supply chain disruptions and ...[Details]
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1 Overview
In order to reduce harmonic pollution to the AC power grid, relevant standards for limiting current harmonics have been formulated both at home and abroad (such as IEC1000-3-2)....[Details]
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Recently, there have been more and more news about Apple AirTags. This item tracking device designed for Apple users was rumored to be released in November last year, but it was obviously not seen at...[Details]
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This article provides a simple test method. Although it cannot reach the professional level of accuracy, it can roughly measure the resistance and accuracy of thermistors. I hope it can help everyone...[Details]
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Recently, Texas Instruments CEO Rich Templeton attended an event hosted by UBS. At the meeting, he was asked, in the current situation of Sino-US trade tensions, China is striving to achieve self-con...[Details]
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Information from the Ministry of Industry and Information Technology shows that Huawei Terminal Co., Ltd. obtained a new phone access license on December 6. The device model is NOH-AN50, which belong...[Details]
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It has only been more than 20 years since feature phones that could only answer calls were introduced to the frequent iterations of smartphones. Over the years, many mobile phone brands have r...[Details]
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On March 4, Xiaomi will release a "glowing gift", claiming that it is dedicated to every light chaser. The official copy reads: "Everyone has a dream of chasing light. In dreams, this beam of...[Details]
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Abstract: This article introduces the charge-coupled device CCD and its noise impact mechanism under low illumination conditions, and analyzes the possibility of noise elimination from the persp...[Details]
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As high-end TV products such as LED backlight LCDTV and 3DTV have successfully entered the market, the polarizing plate market, which directly affects the optical properties of the panel, has also der...[Details]
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On July 13, Jiangfeng Electronics issued an announcement stating that the company issued shares to Gongchuang Lianying and paid cash to purchase 100% of the equity of Silverac Stella (Cayman) Limite...[Details]
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Working principle: 220V AC voltage is stepped down by transformer T, bridge rectified by diodes VD1~VD4, filtered by C1 to obtain a DC voltage of about 3.6V. One path passes through the voltage stabi...[Details]