The figure below is a flyback multi-channel output circuit. If both 5V and 3.3V are output normally,
The voltage-dividing resistors R1 and R2 will bias the transistor Q1. If Q3 and Q2 are in the off s...
2.3 Compile the kernel separately, and uboot generates many files. Which one should I use?
answer:
The kernel compiled file is the zImage file in the ~/MYiR-imx-Linux/arch/arm/boot/ directory.
The fil...
I'll attach two pictures first to help you raise doubts.This is the RF signal routing with regular cut corners.The frequencies are all in the LS bandThis is a general arc trace RF signalThe frequencie...
The picture shows the maximum and minimum current of the EN enable pin of an LDO when EN = 0. My questions are as follows:
1) Is this maximum current and minimum current the maximum/minimum current co...
The previous post disassembled the small speaker and preliminarily determined the fault. For details, see the following link
Bose small speaker disassembly
It was my first time disassembling it, and I...
Home automation continues to usher in a new era of innovation, providing sophisticated solutions for home and office environments. Systems using microcontrollers help consumers with energy-efficient,...[Details]
1. UART Principle UART, Universal Asynchronous Receive Transmitter, is used to transmit serial data: when sending data, the CPU writes parallel data into UART, and UART sends it serially on one wire ...[Details]
When the European Cup is in full swing, in addition to staying up late to watch the game, Chinese audiences have to endure the early heat this year. In this hot summer, if you ask what is more suitab...[Details]
Although there are more than 600 member companies in 3GPP, the 5G standardization process is actually led by a few leading market players. Strategy Analytics' latest research analyzes the contributio...[Details]
Method 1: You need to put your variable declaration in your xx.c file, not in your xx.h header file. Method 2: Regarding variable declaration, when declaring externally, you cannot assign a value t...[Details]
0 Preface
Since the advent of semiconductor lasers in the 1960s, after half a century of development, due to its series of outstanding advantages, such as small size, low price, high conversion eff...[Details]
Pulse Width Modulation, or PWM for short, is a method of using digital signals to output analog signals. It has multiple modes. The main principle is to use the periodic changes in the high and l...[Details]
It has been a while since I came to my space to clean up the snow. I finally made the obstacle avoidance car a few days ago. I was too busy to share it with you. These days, my company has to make a U...[Details]
Highlights: Intel practices corporate social responsibility and moves towards 2030
Recently, Intel released its 2023-2024 Corporate Social Responsibility Report. So far, Intel has re...[Details]
introduction
80+ and Climate Savers Computing have set a strong efficiency standard for computer power supplies. The “Platinum” level of these standards states that computer power supplies mus...[Details]
On January 24, Evergrande Health (0708.HK) issued an announcement that it invested 1.06 billion in power battery company Canaan New Energy, holding 58% of the shares and becoming the largest shareh...[Details]
According to news on October 15, Samsung Electronics, currently the second largest wafer foundry, may not be optimistic about its capacity utilization rate next year. TrendForce predicts that the cap...[Details]
OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
In the past half month, faced with the severe situation that my country's photovoltaic and other new energy industries have encountered trade barriers in major European and American markets, the Na...[Details]
This paper introduces a method of implementing PPP protocol on a microcontroller and making it control the GPRS module to connect to the Internet through GPRS; introduces GPRS technology and t...[Details]