Hi,
Im planning to design the filter circuit of second order passive low pass filter (RLC circuit).
I have read about the Damping and I understand that most commonly under damping systems will be used, because which is most faster in the response and it will settle down fast.
And also I have read about the Quality factor, it says that, "Under damped systems with a low quality factor may oscillate only once or a few times before dying out. As the quality factor increases, the relative amount of damping decreases". Here, I'm not understanding that, firstly, it says that with low quality factor it will oscillate less times . Secondly, it says that, with high quality factor it will decrease the damping. My understanding is that, when low quality factor directly proportional to the oscillations, on other hand, the high quality factor should be also directly proportional to the damping. Right?. But, it is not like that.
And also trying to understand practically by simulating the parameters as follow below. From below, If Q increases and the damping of the waveform will also increasing, this is opposite to above text. Please try to simulate your self as well. Please can you observe the Q and waveform by tuning the value of R.
Please can you teach me which one is right?. How do I need to design the good Second order passive low pass filter?.
http://www.stades.co.uk/RLC filters/RLC LPF.html#RLC_low_pass_filter_type_2
Im planning to design the filter circuit of second order passive low pass filter (RLC circuit).
I have read about the Damping and I understand that most commonly under damping systems will be used, because which is most faster in the response and it will settle down fast.
And also I have read about the Quality factor, it says that, "Under damped systems with a low quality factor may oscillate only once or a few times before dying out. As the quality factor increases, the relative amount of damping decreases". Here, I'm not understanding that, firstly, it says that with low quality factor it will oscillate less times . Secondly, it says that, with high quality factor it will decrease the damping. My understanding is that, when low quality factor directly proportional to the oscillations, on other hand, the high quality factor should be also directly proportional to the damping. Right?. But, it is not like that.
And also trying to understand practically by simulating the parameters as follow below. From below, If Q increases and the damping of the waveform will also increasing, this is opposite to above text. Please try to simulate your self as well. Please can you observe the Q and waveform by tuning the value of R.
Please can you teach me which one is right?. How do I need to design the good Second order passive low pass filter?.
http://www.stades.co.uk/RLC filters/RLC LPF.html#RLC_low_pass_filter_type_2