[align=left][align=left] [font=宋体][size=12pt]Parts package refers to the appearance and location of solder joints indicated when the actual parts are soldered to the circuit board. It is a pure spatia...
Multilayer printed circuit boards are designed for better electromagnetic compatibility. This allows the printed circuit boards to meet electromagnetic compatibility and sensitivity standards when ope...
Technical index requirements: (1) Display year, month, day, hour, minute, second and day of the week, and have corresponding lunar calendar display; (2) The time can be adjusted automatically through ...
The picture below is the original part drawn in my package library. I want to determine its coordinates as a whole. Every time I select it and enter the coordinates, I can only move one of the pads. P...
[i=s]This post was last edited by 37°Man on 2014-6-24 09:47[/i] Share your debugging notes with everyone (technical exchange[url=mailto:xubbwd@gmail.com]xubbwd@gmail.com[/url]) Preparation, connect th...
CIRCUIT FUNCTIONALITY AND BENEFITS This circuit is a flexible, frequency agile IF-to-baseband receiver. Variable gain at the IF and baseband is used to adjust the signal level. The ADRF6510 baseband A...
The rapid development of the Internet has realized high-speed information transmission and resource sharing, greatly facilitating people's lives. Embedded systems are widely used in various electr...[Details]
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
introduction
Solar cells and LED lighting are typical applications of new energy and energy-saving and efficient technologies. Solar LED lighting uses solar cells to convert solar energy...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
A multi-point temperature control heating control system was designed using the SST89E564RC single-chip microcomputer and a new temperature measuring device. The heating system can be controlled in...[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]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
my country is a big country in agriculture, grain production and consumption. Grains are a necessary condition for our nation to survive and develop. The flour processing industry will exist forever w...[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]
This paper designs a 16x16LED Chinese character display bar based on single-chip dynamic scanning control, briefly analyzes the principle of Chinese character display, and studies how the LED displ...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]