[size=4]There is a circuit of audio square wave oscillator composed of 1/4LM339. Changing C1 can change the frequency of the output square wave. In this circuit, when C1=0.1uF, f=53Hz; when C1=0.01uF,...
[size=4] To improve the reliability of the system, the STM32F4 series MCU has an independent watchdog (IWDG) and a window watchdog (WWDG). Today's experiment is about the independent watchdog. [/size]...
[i=s] This post was last edited by Beifang on 2018-9-27 12:44 [/i] 1. The TLP3547 evaluated this time is actually a relatively common series of photoelectric isolation products. It is a must-choose in...
[size=4]Since self-excitation is harmful to the circuit, the conditions for self-excitation should be destroyed during design and production to reduce or eliminate its harm to the circuit. The followi...