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The circuit is shown in the figure. Its core device IC1 is TOP221 , a three-terminal high-voltage switch integrated circuit, which integrates a voltage-type pulse width modulation oscillator, a ref...[Details]
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introduction
With the rapid growth of smart card applications in finance, telecommunications, mobile communications, medical insurance, pay TV and other fields, the reliability requirement...[Details]
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GPIO Overview: GPIO stands for General-Purpose Input/Output. A "general-purpose programmable IO interface" is generally provided on a microcontroller chip. The interface has at least two registers, n...[Details]
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In applications where light is used to control a process, maintaining the factory-set light intensity over a long period of time requires a control circuit to monitor the light conditions and control...[Details]
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4. Design and application of new green energy-efficient Class D audio amplifier
introduction
In the multimedia era, traditional Class A, Class B, and Class AB linear analog audio amplifiers can...[Details]
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What is wall climbing?
A wall-climbing robot is a robot that can move and operate on vertical or near-vertical surfaces. They are designed to perform specific tasks, such as cleaning on th...[Details]
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On February 18, the Software Branch of the China Association of Automobile Manufacturers (hereinafter referred to as the Software Branch) released the China Automotive Operating System Open Source Pl...[Details]
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Apple is expected to release four iPhone 13 models next year, all of which will reportedly feature the same screen sizes as the iPhone 12 series. According to analyst Ming-Chi Kuo, we should expect a...[Details]
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The DS80C400 microcontroller ROM features can be accessed by programs written in 8051 assembly language, C, or Java?. A wide variety of applications can be built using the ROM features and softwa...[Details]
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After connecting the product sample to STM8S-DISCOVERY and starting full-speed operation, two error prompt boxes popped up one after another: First: Error:swim error : comm timeout After clicking O...[Details]
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LED fluorescent lamps can save at least 30% of electricity compared to traditional fluorescent lamps, and their lifespan is 5 to 8 times longer than that of traditional fluorescent lamps. At pres...[Details]
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Overview This article introduces a high-efficiency LED driver that can provide 12 V output voltage and 0.3 A output current in the input voltage range of 90 VAC to 265 VAC. The LED driver uses the...[Details]
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1. U-Boot reference source code The initialization code of NandFlash is placed in board/samsung/tiny4412/lowlevel_init.S. This code is not provided in Samsung SMDK4212, so we need to write it oursel...[Details]
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The typical circuit of the power supply based on UC3842 is shown in Figure 1. Overload and short-circuit protection is generally achieved by connecting a resistor (R4) in series with the source of th...[Details]
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Temperature control probe sensors are devices used to measure temperature and are widely used in industry, medical treatment, scientific research and other fields. Among temperature control probe s...[Details]
Analogue and Mixed Signal
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