芯天下 >> 切比雪夫低通滤波器计算器 | LC低通滤波器计算器 | Pi型滤波器参数计算

切比雪夫低通滤波器计算器 | LC低通滤波器计算器 | Pi型滤波器参数计算

切比雪夫滤波器,又名“车比雪夫滤波器”,是在通带或阻带上频率响应幅度等波纹波动的滤波器。

而低通滤波器有很多种, 最通用的就是 巴特沃斯滤波器 和 切比雪夫滤波器 。

输入数值
 
Cutoff Frequency:
Impedance Z0:
Frequency Response Ripple: db
Number of Components: (1-11)
 
 
计算结果
Inductance: Capacitance:
Unit : Unit :
L1: C1:
L2: C2:
L3: C3:
L4: C4:
L5: C5:
  C6:
The Chebyshev type filter is named in honor of Pafnuty Chebyshev because their mathematical characteristics are derived from Chebyshev polynomials.

A PI filter is a filter that has a series element and two parallel elements connected in the shape of the Greek letter PI.

Chebyshev filters are analog or digital filters having a steeper roll-off and more passband ripple or stopband ripple than Butterworth filters. Chebyshev filters have the property that they minimize the error between the idealized filter characteristic and the actual over the range of the filter, but with ripples in the passband.

Chebyshev filters provide sharper rate of attenuation beyond the -3 db point. Chebyshev filters are more sensitive to component tolerances than Butterworth filters.

For even-order filters, all ripple is above the dc-normalized passband gain response, so cutoff is at 0 dB. For odd-order filters, all ripple is below the dc-normalized passband gain response, so cutoff is at -(ripple) dB.

A Low pass filter is a filter that passes low-frequency signals but attenuates signals with frequencies higher than the cutoff frequency.

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