1. Introduction At present, a large number of integrated automation substations are newly built and renovated in the power system, which makes a large number of high-frequency switching power supplies
It's the end of the year again. I think I'm quite lucky. I've been on the forum for more than three years, and I seem to have won the annual award for three years, but the level is different. What sur
In the DC path of the voltage divider bias circuit, the book says that the current I2 on the bias resistor R2 is much larger than the base current IB, that is, I2>>IB. How is this derived?