As shown in the figure, IN is +5V, which is used by the secondary side of the transformer to feed back to the power IC. Assuming that IN is greater than 5V, TL431 will be turned on, causing the K pole...
After installation (there is a red control in SYSTEM), put the SPCOMM control into the form, compile and pop up the SPCOMM unit file without writing a line of code. It fails to compile, as if a code u...
The INT0 interrupt of 51 has always been normal, but every time a function that generates a rectangular wave is called, the microcontroller does not enter the interrupt program even if there is an int...
I recently bought a few ATMEL memory chips from a merchant. I want 128K, but I always feel that it is not as big as the 32K I originally wanted. The chip I have now says: ATMEL316 24C256N SI27A. The b...
As for crystal oscillators, I have checked many manufacturers, and their worst accuracy is ≤50PPM, which means that there is only an error of 1 pulse in 20,000 pulses. For a 32.768kHz crystal oscillat...
After my modification, the browser of Qtopia finally supports Chinese web pages. That is, if the application can be translated into Chinese, it can be used in development....
The rapid development of the Internet has realized high-speed information transmission and resource sharing, greatly facilitating people's lives. Embedded systems are widely used in various electr...[Details]
introduction
Since the beginning of the 21st century, the world of information has changed rapidly. Maybe a high-tech product will be released today and a better similar product will be releas...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
Google's driverless technology is not only an eye-catching technology, but also a subversion of the car usage model.
Those who have watched anti-terrorism films and TV dramas must have been im...[Details]
introduction
Solar cells and LED lighting are typical applications of new energy and energy-saving and efficient technologies. Solar LED lighting uses solar cells to convert solar energy...[Details]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[Details]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
Overview
As a remote network communication control method with advanced technology, high reliability, complete functions and reasonable cost, CAN-bus has been widely used in various automa...[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]
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]
introduction
LEDs continue to gain popularity in automotive applications, thanks to their long lifespan and the flexibility they offer for body styling and interior design. Some may be surpris...[Details]
Against the backdrop of global warming, energy conservation and emission reduction have become a global hotspot and focus, which has also sounded the clarion call for the take-off of the LED lighti...[Details]
Electric bicycles have long been a means of transportation for lower-income groups due to their affordability. The largest concentrated expense in the use of electric vehicles is the cost of replac...[Details]
With the popularity of digital appliances, rechargeable batteries can be seen everywhere in people's daily lives and have become one of the indispensable daily necessities.
This article gives ...[Details]
Power technology
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