[i=s]This post was last edited by qwqwqw2088 on 2018-1-18 08:47[/i] [size=4]Lead-acid battery (VRLA) is a storage battery whose electrodes are mainly made of lead and its oxides, and whose electrolyte
1. Impedance matching Impedance matching refers to a suitable matching method between a signal source or a transmission line and a load. According to the access method, impedance matching can be divid
[size=2]The American NVE brand uses cutting-edge giant magnetoresistance technology to develop ultra-high-speed digital isolators. Compared with traditional optocouplers, American NVE products have ma
I have been looking for information on this topic recently and want to study it seriously, but unfortunately I have not found any relevant introduction. I wonder if any kind-hearted person can help me
SMIC ushers in the dawn of “five years of profitability” 2006-8-7 With the arrival of the "five years of profitability" period, can SMIC deliver a report card that will excite investors? On June 28
At first glance, a DC motor seems simple. You apply voltage to its terminals, and it turns. What if you want to control the direction of the motor's rotation? The correct way is to change the directio