1. Principle of security door The crystal oscillator generates a 3.5-4.95M sinusoidal oscillation, which is divided into a 7.8K sinusoidal wave by a frequency divider. After the power is amplified by
How do I light up the COG screen of the ay-seb kit and input data? I am using a 430f5529lp board and I really don't know how to write it. I hope someone can give me some advice. Thank you very much.
Homemade power supply upgradeThis homemade power supply that has been with the craftsman for more than ten years has finally reached the age of retirement. In fact, there is nothing wrong with it, but
I just learned about amplifier circuits. When I was studying "Transistor Circuit Design", I didn't understand something about the push-pull circuit! As shown in the figure, I understand everything els