Hi.
I was wondering how do you work out the gain at 0 frequencies for transfer functions.
Say I have a transfer function
Y/X= (jωRC)/(1+jωRC)
The high frequency asymptote is at 1/1=1
The low frequency asymptote is at jωRC/1=jωRC
When ω->0, jωRC->zero. This I understand.
But when putting on a bode plot, we can't take the logarithm of zero?
So how do you find out where it touches the y axis where ω=0?
I was wondering how do you work out the gain at 0 frequencies for transfer functions.
Say I have a transfer function
Y/X= (jωRC)/(1+jωRC)
The high frequency asymptote is at 1/1=1
The low frequency asymptote is at jωRC/1=jωRC
When ω->0, jωRC->zero. This I understand.
But when putting on a bode plot, we can't take the logarithm of zero?
So how do you find out where it touches the y axis where ω=0?