Calculateur de Constante de Temps d'Inductance
Calculez la constante de temps d'un circuit inductif.
Ω
mH
nF
Center Frequency
50,329 Hz
Bandwidth (-3 dB)7,958 Hz
Quality Factor6.32
Center Frequency vs Resistance
Formule
## RLC Bandpass Filter **f_center = 1 / (2pi x sqrt(LC))** **Bandwidth = R / (2pi x L)** **Q = f_center / Bandwidth** Higher Q = narrower pass band.
Exemple Résolu
R=50, L=1 mH, C=10 nF.
- 01f_center = 1 / (2pi x sqrt(0.001 x 1e-8)) = 50,329 Hz
- 02BW = 50 / (2pi x 0.001) = 7,958 Hz
- 03Q = 50329 / 7958 = 6.33
Questions Fréquentes
What is Q factor for a bandpass?
Q = center frequency / bandwidth. Higher Q means a narrower, more selective filter.
How do I make it narrower?
Reduce resistance or increase L/C ratio to raise Q.
Active vs passive bandpass?
Active filters use op-amps and avoid bulky inductors while achieving higher Q.
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