1. Principle of security door The crystal oscillator generates a 3.5-4.95M sinusoidal oscillation, which is divided into a 7.8K sinusoidal wave by a frequency divider. After the power is amplified by ...
The USB keyboard driver should be selected in menuconfig. My problem is that there is no input in /dev/. I have to manually mkdir /dev/input and then mknod /dev/input/kbd c 13 64. The problem is that ...
Through the experiment, I have some questions about the task scheduling of ucos, and hope to get your advice! The questions are as follows: Two tasks are created: OSTaskCreate( taskLED1, (void *)0, &G...
When debugging a PCI board, the configuration space has been configured, 8-bit local bus, but the LBE0# and LBE1# signals are continuously high and the system crashes as soon as they are read. Please ...
I don't know if I am too narcissistic or the forum is not very active recently, why don't I see anyone clicking on my articles? Or is it because my writing is too ordinary? :Sad: But it would be nice ...
A few days ago, I saw an activity on the EEWORLD forum to apply for TI samples, so I went to check it out and found a sample similar to the product we were going to make, so I logged in to apply. I se...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
introduction
With the continuous optimization of surface mount technology (SMT) and the rapid development of chip component manufacturing technology, the application of chip mounters in the el...[Details]
With the rapid development of science and technology, especially the widespread application of digital technology and various ultra-large-scale integrated circuits, electronic equipment, especially...[Details]
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
1. Introduction
Automobile pollution is one of the most important issues that people are most concerned about and need to solve urgently. As an important method for detecting automobile exhau...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[Details]
introduction
MAX6636 is a multi-channel precision temperature monitor that can not only monitor local temperature, but also connect up to 6 diodes externally. Each channel has a programmable...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
With the tense global energy situation and the improvement of human environmental protection awareness, the research and development of power batteries is in full swing around the world. At present...[Details]
1 Introduction
The early stage control system used relay control. Due to the large number of stage equipment, the number of control elements is huge and the wiring is complicated. Therefore, th...[Details]
The NCL30051 from On Semi is a peak current controlled fixed off time buck controller designed for LED driver applications. It has adjustable off time, 250mA source/500mA sink peak drive capability, ±...[Details]
As the electromagnetic environment in space becomes increasingly complex, the shielded cables used to transmit weak signals in the test system are easily affected by external electromagnetic distur...[Details]
According to a survey by the International Energy Agency, Asia and Australia used 1.65 trillion liters of oil for energy in 2004. The survey also showed that since 1990, the demand for oil has been...[Details]
Industrial Control Electronics
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