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...
I want to use DMA to connect an external 16-bit AD via SPI, but I don't know how to connect the CS of the AD with the continuous DMA? If anyone has done this before, please give me some advice....
With the improvement of living standards, people's consumption of resources is increasing, and the measurement, management and charging of resource consumption are becoming more and more complicate...[Details]
Amid much debate over the future of autonomous vehicles (AVs), Intel subsidiary Mobileye has maintained a clear and steady vision for the future . From early AV safety standards development ...[Details]
O-RU Test Manager combines both test solutions to provide a unified user experience
Shanghai, China, February 25, 2022 - VIAVI Solutions (VIAVI) recently announced that it has joined...[Details]
Take a certain model of traditional sedan as an example, convert it into a pure electric sedan, redesign the power system parameters, and verify whether the matching design method is reasonable. Th...[Details]
A major challenge in automotive design is protecting electronic devices (such as control units, sensors, and infotainment systems) from harmful surge voltages, transient voltages, ESD, and noise th...[Details]
In electric vehicles and hybrid electric vehicles, the DC/DC converter supplies power to the 12V load system and 12V battery through a high-voltage power battery. Current sampling is usually set at...[Details]
I just made a voltmeter using STM8S003. Let's share some ideas. ADC sampling and digital tube display are used. STM8 voltmeter microcontroller source code: #include iostm8s003f3.h unsigned int ...[Details]
2021 is still a challenging year, but we have also learned to adapt to the new model brought about by the COVID-19 pandemic. In the Asia-Pacific region, many countries are trying to coexist with the ...[Details]
Coreless motor structure:
The structure of the hollow cup motor consists of: rear cover, terminal, brush end cover, brush, commutator, cup winding (rotor), shaft, gasket, sliding bearing, hous...[Details]
1 AD9850 Introduction
With the rapid development of digital technology, the technology of generating multiple frequencies from a reference frequency source by digital control method, namely di...[Details]
As we all know, there are two most important factors that determine the quality of LED driver power supply: 1. You must identify the brand of capacitors. Rubycom (Japan) is particularly well-know...[Details]
Boost circuit: boost chopper, input and output polarity are the same.
Using the same method, based on the principle that the charging and discharging volt-second product of the inductor L is e...[Details]
3.8 Dynamic digital tube 3.8.1 Digital tube schematic diagram Figure 3-8-1 Note: When using a flat cable to connect, the metal contact of the cable must face right. Development board connection...[Details]
Features: • With 10AAC/DC weak current test • 10,000 count LCD display - excellent resolution • 100A AC/DC AC and DC dual range measurement (10A range resolution is 1mA) • Tapered jaws suitable for a...[Details]