The testability of product design (De sign For Testability. OFT) is also the main content of product manufacturability. From the production perspective, it is also one of the process characteristics o...
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...
This article discusses how to wake up a touch-sensitive device such as a tablet without touching the device, using basic gesture recognition and novel proximity sensors. The article discusses the p...[Details]
1 Introduction
With the acceleration of the pace of urban modernization, society has higher requirements for urban road lighting and urban lighting projects. The state has clearly required tha...[Details]
I. Introduction
In the field of power conversion, isolated converters (forward, flyback, and double-ended) with low output DC voltage all use MOSFET as the rectifier device. Since these devi...[Details]
1. With the development of modern industry and the continuous improvement of automation, some medium and large control systems have been greatly facilitated, which not only makes control easier, bu...[Details]
This week, Microsoft held its 2012 Microsoft Worldwide Partner Conference (WPC) in Toronto, Canada. At the conference, Microsoft showed its new products and services to partners around the world. A...[Details]
The potentiometer is an adjustable electronic component. The main functions of the potentiometer in the circuit are as follows:
1. Used as a voltage divider
A potentiometer is a continuou...[Details]
Experimental tasks
A DS18B20 is used to form a temperature measurement system. The temperature measurement accuracy reaches 0.1 degrees. The temperature range is between -20 degrees and +50 de...[Details]
In 2012, more than half of the cars in the European, Japanese and American car markets will be equipped with color displays, navigation systems, satellite communications and other in-vehicle infota...[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 Guangzho...[Details]
Analysis of the three core aspects of digital TV transmission standards
According to the differences in regionality, transmission method and modulation method, the transmission method needs to...[Details]
1 What is an LED floodlight?
LED downlights are also called spotlights, projection lamps, and spotlights. They are mainly used for architectural decorative lighting and commercial space lighti...[Details]
1 Battery technology determines the fate of energy vehicles
Regardless of whether new energy vehicles are hybrid or pure electric vehicles, they cannot do without the core technology of batter...[Details]
Infrared remote control is widely used in home appliances, but the remote controls produced are not compatible with each other. The universal remote controls commonly seen on the market can only co...[Details]
Current
measurement:
Magnetic balance Hall current
sensor
is used
. The sensor can measure AC from DC to 100kHz.
In automatic measurement and control systems, it is often nec...[Details]
1. Introduction
Modern modular machine tools are equipped with a large number of electronic devices to meet the requirements of processing accuracy, processing speed, etc. If the conventional ...[Details]