I use a desktop computer in the lab, assembled, it doesn't have big problems, any system is easy to run, but the laptop I bought in 2009 is not so satisfactory, HP dv4-1212tx, the original Vista syste...
[b]1 Introduction[/b] With the development of society and the improvement of living standards, people have put forward higher requirements for the quality of life. In recent years, mobile medical care...
The switching power supply controls the time ratio of the switch tube in the circuit to open and close, and maintains a stable circuit voltage output. It is a very common power supply design. However,...
I would like to ask experts for advice on the problem of multi-point measurement in the weighing industry.
As shown in the figure below, pressure sensors are installed at the four corners of the table...
RC π-type filter resistor and capacitor value ---Some people say that according to experience, 2πfR or 2πfc or 2πfl is less than (switching frequency 1M) * 1/5 or 1/10? In the formula, f is the switch...
I am making a detection device that needs to convert current or voltage signals into digital signals and output them on a PC. I would like to ask experts how to achieve this. The more specific the bet...
Today's computer peripherals are pursuing high speed and high versatility. In order to meet user needs, seven companies led by Intel launched the USB (Universal Serial Bus) bus protocol in 1994, wh...[Details]
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
The solidification and modularization of intelligent video analysis algorithms are the current trends in the application of intelligent video analysis technology. It perfectly combines intelligent ...[Details]
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[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]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[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]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
Talking
京公网安备 11010802033920号
EEWORLD
