Media reported on April 1 that in order to save bandwidth costs, YouTube will launch a playback mode called TEXTp. In this mode, users can only see text....
[i=s]This post was last edited by paulhyde on 2014-9-15 03:12[/i] The minimum error requirement is 5mm and can be increased to 1mm. The object to be measured is a cuboid or a cylinder, and the maximum...
This week I'm sharing a mini but fully functional clock project with RGB effects and temperature monitoring function.
Step 1: Material PreparationNodeMCU (ESP8266)Customized PCBConnection linesBattery...
The following figure shows part of the circuit in the DIY digital power supply. The isolated ~110V is rectified and added to the VCC terminal. There is a 48V output but the voltage is low (due to the ...
When using the PWM wave of 430, I have always been confused, that is, how many PWM waves can it output? I think other friends may have the same confusion. After searching a lot of information, I final...
[b]Keysight N5235A PNA-L Microwave Network Analyzer[/b] [b]Product IntroductionMain Features and FunctionsThe right combination of speed and performance gives you a competitive advantageKeysight's out...
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]
Sailing is gaining more and more attention. How to use modern technology to assist training and improve competition results is particularly important. Considering the real-time data collection in t...[Details]
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[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]
Analog engineers have traditionally struggled with complexity when designing power supplies that required multiple outputs, dynamic load sharing, hot-swap, or extensive fault-handling capabilities....[Details]
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[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]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[Details]
The reason for the light decay of white LEDs: the decline of phosphor performance
So far, the rapid decline of the luminous performance of white light LEDs, especially low-power white light LE...[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]
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]
Investment in
the
medical device
industry has been on the rise in recent years. In the past two years, venture capital for medical devices has almost doubled, reaching $4 billion in 2007. Fr...[Details]
Motors are important products that convert electrical energy into mechanical energy to achieve automation, and they are widely used in industrial control, medical electronics, white a...[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]