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0 Introduction 电源装置是电子电气设备中所不可缺少的部件，开关电源以其效率高、体积小、重量轻、电压适应性好等优点，受到相关行业的青睐。但目前存在的缺陷是电磁骚扰大，对环境或对其他设备造成不利影响。目前对于可变负载的开关电源，笔者所了解到的产品最低输出噪声电压也在70 mV以上。设计低电磁骚扰的开关电源，也就成了许多设计人员的希望，为此提出了种种方法。本例设计要点不同于...[Details]

Since General Secretary Xi Jinping proposed to build a global energy internet and promote the development of clean energy at the UN Development Summit last September, the call for energy internet h...[Details]

For the electronic design competition, I have to learn microcontrollers again! Now let's summarize the experience and experience of learning MCU before: 1. Microcontrollers are not difficult to use...[Details]

The commercialization of 5G is like pressing the accelerator for the development of the global intelligent industry. Various industries are gearing up to take this fast lane and quickly seize the fut...[Details]

#include "stm32f10x.h" /*RCC clock configuration*/ void RCC_config(void) {   ErrorStatus HSEStartUpStatus;  /* RCC registers are set to default configuration */  RCC_DeInit();  /* Turn on externa...[Details]

use: Determine the AFE sensitivity to the falling edge time of the input signal Applies to Electronic design engineers who develop CCD sensor circuits for semiconductor and electronics companies th...[Details]

In many applications, it is often necessary to measure the distance between an object and a person, device, or vehicle, such as robot motion control, vehicle control, blind canes, medical equipment, ...[Details]

Common forms of LED connection circuits 1. Series connection: This circuit requires a higher voltage from the power supply. Vtotal = the sum of the VF of each LED = VF1 + VF2 + VF3 + VF4 -...[Details]

Industry sources revealed that due to contamination of certain materials used in the manufacturing process, Kioxia and Western Digital's joint venture factory in Japan has significantly reduced produ...[Details]

       According to foreign media 91mobiles, Xiaomi has officially announced that it will hold a press conference in India on January 6 local time to officially release the Xiaomi 11i series of model...[Details]

True value: refers to a physical quantity that exists objectively but cannot be obtained absolutely correctly except in theory. In reality, the value obtained by a standard instrument with high enough...[Details]

The identification method of the matrix keyboard has been discussed in the 51 matrix keyboard identification. Now let's talk about the difference between the PIC microcontroller and the 51 microcontr...[Details]

Global Sources strengthens online B2B platform to prepare for future sourcing by global O2O buyers New capabilities will connect exclusive premium buyers and unique, verified suppliers around the w...[Details]

As the power battery and electric drive system replace the traditional fuel and engine, the voltage of the entire system of pure electric vehicles increases from the traditional 12V to a system vol...[Details]

I've been learning ARM Cortex-M3 recently, and I've found a book called "An Definitive Guide to The ARM Cortex-M3" that is considered a classic. This series of study notes is actually the reading note...[Details]