Re: Transfer Function of Two Filters in Parallel

On 26 Apr, 21:54, Chris Barrett
<"chrisbarret"@0123456789abcdefghijk113322.none> wrote:
I have two filters in parallel. The transfer functions are given by H1
and H2. I've illustrated the setup below.

.-- H1 ---.
| |
in --------| (+)------> out
| |
'-- H2 ---'

How do I find the transfer function of two parallel filters? Do I
merely sum the two together?

sum = H1+H2

I would think this would work, but I would be worried that the phase
responses would throw the result off. How do I find the combined
transfer function?

The total frequency response is the (complex-valued) sum of the two.
That's a property of linear systems.

Rune

.

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