Ripple attenuation

1. What is ripple attenuation?
2. What is ripple in a filter?
3. What is ripple in waveform?
4. What is ripple in DC motor?

What is ripple attenuation?

the ripple is a certain amount of amplification or attenuation tolerated in the pass band of the filter. So it depends if those effects are critical for your application or not. if you are doing a FFT and the amplitude of the spectrum is key, then a low or no ripple low pass filter is required.

What is ripple in a filter?

Ripples are the fluctuations (measured in dB) in the pass band, or stop band, of a filter's frequency magnitude response curve. Elliptic and Chebyshev-based filters have constant ripple across their pass bands. While Bessel and Butterworth derived filters have no ripple in their pass band responses.

What is ripple in waveform?

A ripple is defined as the fluctuating AC component in the rectified DC output. The rectified DC output could be either DC current or DC voltage. When the fluctuating AC component is present in DC current it is known as the current ripple while the fluctuating AC component in DC voltage is known as the voltage ripple.

What is ripple in DC motor?

Mathematically, torque ripple is defined as the difference between the maximum and minimum torque produced over one mechanical revolution of the motor, divided by the average torque produced over one revolution, expressed as a percentage.