What are the basics of Power over Ethernet ( PoE )? The IEEE 802.3af standard for PoE requires that all data terminal equipment (DTE) receive power using the same cabling as data, which specifies 48V ...
[i=s]This post was last edited by tianshuihu on 2014-1-1 22:42[/i] [align=left][font=宋体]I just received[/font]SensorTag[font=宋体] and tried connecting it to various devices: Blackberry[/font]9780[font=...
[localimg=400,300]1[/localimg][localimg=400,300]1[/localimg][localimg=400,300]1[/localimg][localimg=400,300]1[/localimg][localimg=400,300]1[/localimg][localimg=400,300]1[/localimg] Will the density of...
Our company has recently developed an ARM test platform for LPC2138. The basic circuit is: connect to the 17V DC after transformation, and adjust the voltage to 5V by 78M05. After that, the required v...
This article takes RFID products that use magnetic coupling and CMOS technology as an example to briefly introduce the composition of such chips. Based on the listing of various destructive/non-destru...
What is a DC-DC converter? In fact, it is a voltage converter that effectively outputs a fixed voltage after converting the input voltage through a DC-DC converter. Generally, DC-DC converters are div...