What does it mean that the X1 voltage and Y1 voltage of the safety capacitor marked in the figure are both 400V?In principle, the failure mode of the X capacitor is short circuit, and the failure mode...
I would like to ask you the following questions:
Why is there a burnt mark on the D-pole of the QV2 N-MOS on the circuit board in the following figure, and the MOS tube is still good when measured wit...
Compared with traditional silicon devices, silicon carbide (SiC) devices have become viable candidates for the next generation of low-loss semiconductors due to their low on-resistance characteristics...
Please recommend an embedded development board that can be ported to uclinux, wince, arm platforms, and other platforms are also ok. Basic USB device. LCD touch screen is best, LAN interface..... What...
New features and improvements since 6.1.0 Beta 3Fixes and enhancementsFix initialization of onboard NeoPixels. #3934. Thanks @DavePutz.
Update ulab to 1.6.0. #3929. Thanks @jepler.
Fix zero brightness...
[i=s]This post was last edited by damiaa on 2015-9-21 14:55[/i] wateras1, damiaa, Qianshuangling Group: After a few weeks of hiding, I finally surfaced. I'm posting the PDF of the schematic and the fi...
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]
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]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
A multi-point temperature control heating control system was designed using the SST89E564RC single-chip microcomputer and a new temperature measuring device. The heating system can be controlled in...[Details]
my country is a big country in agriculture, grain production and consumption. Grains are a necessary condition for our nation to survive and develop. The flour processing industry will exist forever w...[Details]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
As a simple and practical input device, buttons have been used in various microcontroller application systems and are ubiquitous. However, the buttons used in different practical occasions are also...[Details]
This paper designs a 16x16LED Chinese character display bar based on single-chip dynamic scanning control, briefly analyzes the principle of Chinese character display, and studies how the LED displ...[Details]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
Introduction
As the country increases its efforts to control the atmospheric environment, motorcycle emission regulations will become stricter year by year, and motorcycles that do not meet the...[Details]
With the rapid development of cities and the improvement of citizens' living standards, the number of various vehicles in cities is growing, and the demand for parking spaces in major commercial an...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
Fruit planting is an important part of China's agricultural development, and fruit tree pest control operations are becoming more and more important. At present, the overall level of pesticide applica...[Details]