需求
“An op-amp astable multivibrator with a 15 V supply, a 10 kΩ resistor from the non-inverting input to ground, a 10 kΩ feedback resistor from output to the non-inverting input, and a 10 kΩ resistor plus 100 nF capacitor timing network at the inverting input.”
接著試試Change the timing capacitor to 1 µF.Add an output LED with a series resistor.
這張圖裡有什麼
看懂背後的決策。
01
Choose resistor values R1, R2, R3 and capacitor C1 to set frequency and duty cycle.
02
Select op-amp with rail-to-rail output for symmetric swing.
Use this circuit for clock generation, tone generation, or pulse-width modulation when a stable square wave is needed.