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In today's global energy shortage and increasing environmental pollution,
LED
has a broad application space with its energy-saving and environmentally friendly characteristics.
LED lamp...[Details]
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Problems faced by wireless power supply for laptops
The wired power supply of laptops is usually around 20V/3A. For common switching power supplies, with some losses, the reserve power of thi...[Details]
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1. stm32f103re, using external crystal oscillator 32.768k, without calibrating the rtc clock, using the serial port to print time, and using a serial port tool with timestamp to record the time recei...[Details]
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DSP is a digital signal processor designed for real-time digital signal processing. Due to its outstanding advantages of fast computing speed, small size and low power consumption, it is very suitable...[Details]
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;Program function: Power on: PIN5 is high level, the green light is on; PIN2, PIN3 are low level, the red light is off; ; Alternately detect PIN6, PIN7 pin level, undervoltage 3.9V, 10V, red light on...[Details]
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12. ARM pseudo-instructions ARM pseudo-instructions are not instructions in the ARM instruction set. The compiler defines pseudo-instructions for the convenience of programming. They can be used like...[Details]
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If a mobile phone battery is used for two or three years or has been left unused for a period of time, it will be difficult to charge or cannot be charged at all. For such batteries, many people will...[Details]
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The reducer uses the difference in the number of teeth of the gear to reduce the speed and increase the torque, and is one of the important components in the industrial field. Japan's HarmonicDrive...[Details]
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On August 16, 2022, WPG Holdings, a leading semiconductor component distributor dedicated to the Asia-Pacific market, announced that its subsidiary Youshang has launched a three-phase parallel meter ...[Details]
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How to use a multimeter to measure resistance? Multimeters are divided into digital multimeters and traditional multimeters with electromagnetic deflection of pointers. Digital multimeters are more ex...[Details]
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A switching power supply is a power supply that uses modern power electronics technology to control the on-off time ratio of the switch tube to maintain a stable output voltage. A switching power s...[Details]
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自从20世纪90年代以来，各种单片
开关电源
集成电路竟相问世，现已形成TOPSwitch、TOPSwitch-2、TOPSwitch-FX、TOPSwitch-GX、TinySwitch和TinySwitch-2六大系列近百种型号。它们具有高集成度、高性价比、最简外围电路、最佳性能指性等显著优点，现已成为国际上开发250W以下中、小功率开关电源、精密开关电源及电源模块的...[Details]
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A word foreword: The STM32F0 Advanced Project Series is an introductory tutorial written by hardware system engineer Starkman in the form of advanced projects. It is based on project development and ...[Details]
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Clock circuit: The clock signal of 8031 microcontroller is usually obtained by two circuit forms: internal oscillation mode and external oscillation mode. Connecting a crystal oscillator (referred ...[Details]
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Working principle of electronic transformer
The electronic transformer introduced below has an input of AC220V and an output of AC12V, and its power can reach 50W. It is mainly a transformer circui...[Details]
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