I submitted a board before the board factory closed for the National Day holiday. It was pretty fast. It was finished and shipped in four days. I made new things during the holiday. Because I was main...
TI's BXL format:The PADS9.3 format I converted:And I modified the library a little bit:[[i] This post was last edited by dontium on 2013-3-2 23:23[/i]]...
This is a prototype made with the 2416 core board. The program was ported from the 2440. The main thing was to modify the IO driver (used to implement the interface protocol of the WG34 card reader, a...
[i=s]This post was last edited by ywlzh on 2016-4-20 13:03[/i] A DS1302S came in these days. It is said that the chip is original. This aroused my interest. Circuit diagram: Alas, I don’t know what’s ...
I found a very good blog written by Mr. Chen Yongzhen. Friends who make LED or fluorescent lamps can take a look. If you have any opinions, please share them. [url=https://home.eeworld.com.cn/my/space...
[color=#000000]The minimum switching current of the TLV61220 chip is 200ma, what does this mean? Does my load current have to be greater than 200ma? [/color] eeworldpostqq...
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]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[Details]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[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]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[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]
It is well known to automotive suppliers that automakers are demanding more from their supply base. For connector suppliers, this means stricter requirements for product performance, stability and ...[Details]
The era of mobile access to the Internet has arrived, and it will rapidly change the business and infrastructure needs of mobile operators under a whole new trend of requirements. We need 4G LTE to...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
DIY/Open Source Hardware
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