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The circuit of this power supply is shown in the figure below.
1. Charging circuit and its debugging
Initially, influenced by some cheap universal mobile phone chargers, the constant curren...[Details]
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Now Samsung has officially announced the Galaxy S21 launch event called "Everyday Epic". The Galaxy S21 will be the only model that supports the S-Pen, and there is even a specially made prote...[Details]
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If your MCU application needs to process digital audio, consider taking a multithreaded approach. Using a multithreaded design approach enables designers to reuse portions of their design in a stra...[Details]
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On December 6, 2018, Lai Jianjun, Deputy Chief Inspector of the Jiangxi Investigation Team of the National Bureau of Statistics, Tang Weidong, Director of the Regulations Department of the Jiangxi ...[Details]
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For modern electronic systems, due to their complexity, not only AC-DC, but DC-DC ripple noise is also very important. The existence of ripple and noise will cause many hazards and affect the normal ...[Details]
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Can the iPhone-style ultrasound device in a smartphone become a medical-grade "detector" like a stethoscope (as shown below)? It can be said that it is a new multi-functional iPhone, or a medical-gra...[Details]
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In recent days, OPPO announced 150W fast charging and 240W fast charging at the Barcelona exhibition, which can fully charge a mobile phone in as fast as 9 minutes. It also stated that 150W wil...[Details]
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This type of
converter
is also called "pump power supply". Its characteristic is that it uses the principle of charge to convert positive voltage input into negative voltage output of rev...[Details]
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Combining transmission line theory and load effects, let’s talk about some precautions related to 50ω in oscilloscope measurements. Of course, these do not need to be taken into account when measurin...[Details]
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In the previous issue, we introduced "Low impedance, mismatch, high power - audio power amplifier for CS101 project". So, what are the protection measures for the audio power amplifier for CS101 un...[Details]
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According to CCTV, Wang Zhijun, Vice Minister of the Ministry of Industry and Information Technology, recently accepted a joint interview with the news media in response to the unilateral trade frict...[Details]
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The following figure shows a novel circuit for IR53HD420 to drive light-emitting diodes. In the figure, VDC is 320V DC. It is obtained by rectifying and filtering 220V AC. The IR53HD420 output gene...[Details]
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Atmel® Corporation, a leading manufacturer of touch and microcontroller solutions, announced a collaboration with H&D Wireless to deliver an IEEE802.11b+g Wi-Fi solution for Atmel's 32-bit AVR® m...[Details]
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On November 23, 2023, China Southern Power Grid Peak and Frequency Regulation (Guangdong) Energy Storage Technology Co., Ltd. (Party A), a wholly-owned subsidiary of China Southern Power Grid Energ...[Details]
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With the rapid development of integrated circuits, digital signal processing technology has been widely used in many fields such as image processing, communication and multimedia. The introduction ...[Details]