As shown in the figure, unlike the conventional two feedback resistors to collect voltage,
In the figure, the feedback resistor is connected to the output end of the power chip and the load power supp
1. Don't say "Give me a code!" as the first sentence after seeing someone's reply. You should think about why. When you figure it out yourself and refer to other people's tips, you will know the diffe
[8-)] RFID technology RFID (radio frequency identification) technology is an automatic identification technology that has developed rapidly in recent years. The distance of radio frequency identificat