Introduction |
Astable Multivibrator
F = 1/T = 1/[ ln(2) × (R2C1 + R3C2)
F = 1/T ≈ 1/[0.693 × (R2C1 + R3C2)
F = 1/T ≈ 1/[0.693 × (1e+6 × 39E-12 + 2.2E+5 × 100E-12)]
F = 1/T ≈ 1/[0.693 × (3.9E-5 + 2.2E-5)]
F = 1/T ≈ 1/[0.693 × 6.1E-5] = 23,655.71 Hz
F = 1/T ≈ 1/[0.693 × (1e+6 × 24E-12 + 2.2E+5 × 100E-12)]
F = 1/T ≈ 1/[0.693 × (2.4E-5 + 2.2E-5)]
F = 1/T ≈ 1/[0.693 × 3.188E-5] = 31,369.579 Hz
Q1
2SC373
Q2
2SC373
R1
4.7K
+V
R2
1M
+V
R3
220K
+V
R4
4.7K
+V
C1
39pF
C2
100pF
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