方块波震荡电路(Square-wave oscillator
Square-wave oscillator 方块波震荡电路:

R2 = R3 = R4 = 100 K
R1 = 100 K, C1 = 0.01 uF
Freq = 1 /(2π* R1 * C1)

R2 = R3 = R4 = 100 K
R1 = 100 K, C1 = 0.01 uF
Freq = 1 /(2π* R1 * C1)
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