OKAWA Electric Design
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(Sample)RLC Low-pass Filter Design Tool - Result -

Calculated the transfer function for the RLC Low-pass filter, displayed on graphs, showing Bode diagram, Nyquist diagram, Impulse response and Step response.

RLC Filter

Vin(s)→ →Vout(s)
(Sample)Transfer Function:
G(s)= 45454545.4545
s2+13483.9972493s+45454545.4545


R = 1.34839972493Ω
C = 220uF
L = 100uH

Cut-off frequency

fc = 1073.02240743[Hz]

Quality factor

Q = 0.5

Damping ratio

ζ = 1

Pole(s)

p = -1073.02240194-1.24889494459E-54i[Hz]
  |p|= 1073.02240194[Hz]
p = -1073.02240743-4.24913211592E-06i[Hz]
  |p|= 1073.02240743[Hz]

Phase margin

pm= NAN[deg] (f =0[Hz])

The system does not oscillate.

Overshoot (in absolute value)


The peak of transient waveform is not detected.

Final value of the step response (on the condition that the system converged when t goes to infinity)

g(∞) = 1

Q factor | Damping ratio ζ

Quality factor Q =
Damping ratio ζ =
fc= Hz
L = H C = F
Give two values from three parameters of fc ,L, C.

Select Capacitor Sequence:
Select Resistor Sequence:
Select Inductance Sequence:

Frequency analysis

Bode diagram
    Phase  Group delay
Nyquist diagram
Pole, zero
Phase margin
Oscillation analysis
Analysis on frequency range:
  f1=∼f2=[Hz] (optional)

Transient analysis

Step response
Impulse response
Overshoot
Final value of the step response
Analysis on time range:
  0∼[sec] (optional)


Frequency analysis





Transient analysis