I am using [b]DC-DC with isolation power supply module A0505S-2W dual output 5V to positive and negative 5V power 2W[/b]. I want to input 5V voltage and output positive and negative 5V. I looked at th...
I have just started to work with microcontrollers and I am still reading programs written by others. Now I don’t quite understand the programs about communication between microcontrollers and PCs. I h...
[i=s]This post was last edited by mikeliujia on 2014-12-7 23:31[/i] Having used TI's CC1100 and CC2430, I would like to share the ATmega16L+CC1100 wireless development platform. In fact, this platform...
1. If it is manual welding, you should develop good habits. First, before welding, you should visually check the PCB board and use a multimeter to check whether the key circuit (especially the power s...
[i=s]This post was last edited by damiaa on 2015-11-17 16:18[/i] [size=3]I am very happy to get the opportunity to evaluate the STM32F4 DISCOVERY Kit for STM32F469 MCU provided by EEWORLD. Here are se...
The price is 100 yuan, not including postage. QQ1625345502The number of college graduates is increasing year by year, and the competition for employment is becoming more and more fierce. Enterprises h...
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[Details]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
With the widespread application of new services and technologies in the communications industry, the scale and capacity of operators' network construction are getting larger and larger, and the ris...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[Details]
LED is now known as the fourth generation of light sources. High-power LED has many advantages over traditional light sources in outdoor lighting.
1 LED lamps have high light efficiency
C...[Details]
In order to prevent the lithium battery from being damaged by abnormal conditions such as overcharge, over discharge, and overcurrent, a lithium battery protection device is usually used to prevent...[Details]
This article focuses on closing the feedback loop of an isolated power supply using a TL431 shunt regulator. The article discusses a method to extend the bandwidth of the power supply control loop ...[Details]
1 Introduction
The stepper motor is an actuator of an open-loop servo motion system, which is controlled in a pulse mode and outputs angular displacement. Compared with AC servo motors and DC servo ...[Details]
In the past 20 years, although the inverters that use power transistors (GTR) as inverter power devices, 8-bit microprocessors as control cores, and realize asynchronous motor speed regulation acco...[Details]