Filter circuit Although the rectifier circuit can convert the alternating current into direct current, the pulsation component is large, and it is not applicable in some cases where the direct current is required to be smooth. A filter circuit

In 2015, the domestic mobile communication market will fully enter the 4G era. 2014 is the first year of commercialization of China's 4G business. In just one year, both 4G network construction and user development have made significant progress. In particular, China Mobi

At the opening ceremony of the Rio Olympic Games, at least three unmanned aircraft hovered over the Maracana Stadium, which once again saw the loopholes in Rio Security. It is worth mentioning that at the same time, at the opening ceremony of the Olympic Games. French Presiden

one. text (1) Project summary The interactive robot car is an intelligent control platform that can realize data collection and video monitoring through wifi. It integrates entertainment and site surveying into one. It adopts AT32UC3A0512 with superior audio decoding and str

In most cases, users who want to experience high-end virtual reality (VR) devices such as htc vive or Oculus Rift need to use a Windows PC. However, this situation may be about to change, Apple announced that it will provide free support for VR MacOS High Sierra system. Th

Haier's products should be no one does not know it, and most of its life appliances have been in contact with, today Xiaobian not to say Haier appliances, but Haier U +. This system does not know how much everyone knows. Haier U+ smart living system is the world's first smart living system

The same frequency is the premise that two walkie-talkies can talk. Many people think that as long as the two walkie-talkies are the same brand, they can talk. Actually, if they are not at the same frequency, even the same brand and the same type

Car Audio Crystal 3.2*2.5mm 3225 24M (24.000MHZ) 20PF 10PPM 20PPM 30PPM When the driver leaves the car, the circuit illuminates the road with the headlights of the car at a pre-set time. Push SQ1, Q2 to open, turn off the relay, and turn on the car's headlights. C1 be

Researchers from the State Key Laboratory of New Energy Power Systems (North China Electric Power University), Yu De, Fu Chao, Wang Yi, Wang Yanxu, Yang Yuming, in the 24th issue of Journal of Electrical Engineering, 2017, pointed out that the iso

1 Introduction 1.1 High-pressure advection pump control status The high-pressure advection pump is a kind of equipment that uses a motor to drive a plunger pump to make the liquid output at a steady flow and pressure. As a power source of the analytical instrument, it is wid

The programming language of PLC has obvious characteristics compared with general computer language. It is different from general high-level language and general assembly language. It is easy to write and easy to debug. At present, there is no pro

I heard that the TV set-top box was doing something and it exploded! What actually can be so popular? Can not understand the solution, ah! TV Fruit 3 iQIYI Smart Internet TV set-top box The third generation of black stone mobile phone screen Apple Android Universal (inside