I would like to ask you all: The driver insmod is successful, and the node is created, but an error occurs when opening it. Kernel version 2.6.18, pxa270 chip. Unable to handle kernel NULL pointer der...
I use the Nucleo board of STM32L073, and now use the pin output of GPIOC 0~7 to control the MOS tube. The pin mode is set to OD, the internal pull-up and pull-down are turned off, and each pin is conn...
The MCU is going to be 89C51, and the current sensor is used to measure the current AD conversion. Which chip is better? The main thing is to determine how to connect the components and circuits. . . ...
[color=red]Activity time: From now until December 31, 2012[/color] [b]【Award Ceremony】Power Supply Mobilization! Winners of the Power Supply Game! [/b][url=https://bbs.eeworld.com.cn/thread-365387-1-1...
Previously, I used the V3.0 firmware library and the Chinese manual of the firmware library, which has the meaning of each parameter and examples of each sub-function, making it very convenient to use...
Only a small number of LED manufacturers can produce high-quality LEDs. For applications that are only used for simple indication, low-quality LEDs are sufficient. However, high-quality LEDs must...[Details]
Liquid crystal display (LCD) panels have a wide range of applications, from small portable electronic devices to large fixed devices, including digital cameras, laptops, personal data assistants, d...[Details]
1. Introduction
With the increasing popularity of fully automatic washing machines, consumers have higher and higher requirements for their environmenta...[Details]
When the so-called "copycat phones" that flood the domestic mobile phone market move towards large screens, stereo amplifiers, touch controls, and even GPS navigation and mobile TV, the homogeneity...[Details]
Currently, the commonly used solar cell technologies include monocrystalline silicon solar cells and polycrystalline silicon thin-film solar cells. Production process: Monocrystalline silicon solar...[Details]
The power supply is the core component of a computer. Although it is not of high value, all computer components rely on the switching power adapter to provide energy, so the stability of a power su...[Details]
The power consumption of a switching power supply includes fixed losses caused by parasitic resistances such as semiconductor switches, magnetic components, and wiring, as well as switching losses ...[Details]
1 Introduction
Power supply ripple will interfere with the normal operation of electronic equipment, causing malfunctions such as computer crashes, data processing errors and control system fa...[Details]
1. Overview
With the development of science and technology, PLC is increasingly used in industrial control. The reliability of PLC control systems directly affects the safe production and economic o...[Details]
Improving the coordination of material handling and internal transportation between departments in modern factories is an important measure to achieve full automation of production. Traditional mat...[Details]
Infineon's ICL8001G adopts a single-stage flyback and PFC controller with quasi-resonant operation mode, with a power factor greater than 98%, LED driver efficiency up to 90%, an operating voltage up ...[Details]
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symbol ``xxx``Argument
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1 Introduction
With the rapid development of the national economy, AC motors have played an extremely important role in industrial production. As the main traction motor in various industries,...[Details]
1. What is the difference between the continuous output power and the peak output power of a power inverter?
Continuous power and peak power differ in the meaning they express.
Continuous...[Details]
Embedded System
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