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What's inside a counterfeit Macbook charger? A reader sent me a charger he suspected was a counterfeit. On the outside, the charger looked like a near-identical Apple charger, but when you take th...[Details]
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When analyzing a power supply, we usually start from the input. The 220V AC input is rectified by a 4007 half-wave rectifier at one end and filtered by a 10uF capacitor at the other end after passing...[Details]
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According to the different electrolyte materials used in lithium-ion batteries, lithium-ion batteries can be divided into two categories: liquid lithium-ion batteries (LIB) and polymer lithium-ion b...[Details]
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On September 25, Sungrow released the first industrial and commercial liquid-cooled energy storage system PowerStack 800CS for 10/20kV large industrial scenarios, leading industrial and commerc...[Details]
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On the morning of January 11, the official Weibo account of iQOO mobile phone preheated the software system news of the new iQOO 7, saying that this phone will be equipped with OriginOS, and it s...[Details]
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This article introduces the main features of SSL2101, block diagram, typical application circuit diagram and bill of materials (BOM) for 12W dimming LED driver circuit with input voltage of 230VAC ...[Details]
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At present, matrix inverters have attracted much attention because of the use of matrix converters (MC) with adjustable input power factor, continuous output frequency, bidirectional power flow and...[Details]
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The stepper motor has a simple structure and consists of two parts: the stator and the rotor. The stator includes coils and magnets, and the rotor is a multi-pole magnetic rotor, usually made of ma...[Details]
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Episode 11
1. Working principle of digital tube
Digital tubes have high display brightness and fast response speed, and can be used in some relatively poor environments. There are 1-di...[Details]
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A digital blogger broke the news on social media that vivo's tablet product is coming soon. At the same time, the blogger chose a vivo X60 Pro+ launch poster as an accompanying picture, which seems t...[Details]
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A groundbreaking ceremony was held for Huizhou JPT Fiber Laser Industrial Park. According to Zhongkai News, the total investment of Huizhou JPT Fiber Laser Industrial Park project is planned...[Details]
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Microchip Launches New MaXTouch® Knob-on-Display (KoD™) Touch Controller Family, Revolutionizing Traditional Touchscreen Design
The maXTouch technology-based display knob controller ...[Details]
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According to foreign media reports, on the evening of August 10, local time, a Tesla vehicle crashed on a highway near Moscow, and then caught fire and exploded. The people in the car were slightly i...[Details]
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The DC motor rotor can be measured by the following methods:
1. Observe the rotor surface
You can use your naked eyes to observe whether the rotor surface is flat and smooth, and whether ...[Details]
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The hydraulic system is a technology widely used in industry and engineering. It uses liquid as the working medium and realizes the transmission and control of energy through the pressure and flow ...[Details]