[i=s]This post was last edited by qwqwqw2088 on 2019-5-27 07:20[/i] [size=4]After only a few years of being completely immersed in motorist culture, it's easy for me to take for granted that most peop...
What kind of sensor can detect whether there is someone in the room? I used to watch "24" and it was very powerful. Is there any instrument that can achieve this in reality? Please tell me, experts?...
Fruit battery, no-load measurement 3V, about 100UA, then connect to MSP430 minimum system or connect a small SMD LED light, and measure the voltage and current at the two ends, just halved!, 1,.7 1.6 ...
/*Correspondence between keyboard functions and scan values (function in front, scan key number in the back) |--------|--------|--------|---------| |1 (0)|2 (1)|3 (2)|Select (3)| |--------|--------|--...
Our equipment has high-voltage discharge phenomenon, and the main unit equipment is discharged. The current confusing question is whether it is due to IGBT failure that causes overvoltage or overvolta...
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
1. Introduction
This design was made for participating in an electronic design competition. It effectively solved the problem of the operation and control of an electric car on a seesaw. The s...[Details]
With the advent of increasingly powerful processors, image sensors, memory, and other semiconductor devices, as well as the algorithms that enable them, computer vision can be implemented in a wide...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
Capacitance Measurement
Used to verify that capacitors meet the manufacturer's specifications. For quality control, a group of capacitors may be placed in an environmental chamber and the cap...[Details]
As people's requirements for safety and comfort in the process of driving cars continue to increase, automotive radars are widely used in the car's adaptive cruise system, collision avoidance syste...[Details]
Introduction
Automakers are working to reduce vehicle weight to reduce CO2 emissions and improve fuel efficiency. Designers are therefore seeking new technologies and design techniques that can...[Details]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
The invention of the steam engine ushered in the first conversion of internal energy and mechanical energy for mankind, and the birth of the internal combustion engine at the end of the 19th centur...[Details]
A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]
Designing low power circuits while achieving acceptable performance is a difficult task. Doing so in
the RF
bands increases the challenge dramatically. Today, nearly everything has wireless...[Details]
In view of the price and performance differentiation of Chinese home video intercom and security products, this paper analyzes
the design of smart terminals based
on a Chinese original
...[Details]
1. Self-test of lithium battery capacity
The nominal capacity of the CECT9898 OEM mobile phone lithium battery is 3800mAh, and its battery volume is comparable to the 1500mAh battery of ot...[Details]
Some industrial applications require a
three-
phase supply to be fed into a low-power dc/dc converter that may have to handle 200V or 400V effective line-to-line voltages. In addition, the...[Details]
Analogue and Mixed Signal
京公网安备 11010802033920号
EEWORLD
