How to identify high speed USB devices? The identification of full speed and low speed USB is to pull up 1.5K resistors on D+ and D- respectively, so that the signal changes from low to high for ident...
The influence of air gap position on inductance parameters and its improvement In addition to the inductance with iron powder core as the magnetic core, the general inductance (Flyback transformer is ...
Yesterday, I received the E power module. Today is my day off. I will start using it right away. Here are the pictures: Open the cover: [[i] This post was last edited by daijun on 2012-7-21 19:37 [/i]...
Very curious,What kind of information are you generally interested in? E-books? Application notes? Or something else?Generally, through what channels can we obtain such information quickly and in larg...
For unidirectional, I am used to using 74HC245 for conversion.But the more annoying thing is the bidirectional interface. For example, to drive OLED and dot matrix LCD, the analog parallel port needs ...