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Notch filter with bais

 
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barbar



Joined: 08 Dec 2003
Posts: 25
Location: Israel
Post02 Sep 2004 11:26   Notch filter with bais
I need to design notch filter with Vbais because I use a single supply.
Is some one can show me where I can find that?
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DoctorX



Joined: 02 Sep 2004
Posts: 73
Location: USA
Post15 Sep 2004 22:46   Re: Notch filter with bais
barbar wrote:
I need to design notch filter with Vbais because I use a single supply.
Is some one can show me where I can find that?


Is the design of Notch Filter a problem, or the implementation with single-supply voltage opamp a problem? Please post back, so we can go into specifics.
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djalli



Joined: 10 Nov 2001
Posts: 887
Helped: 15
Location: 1600 Pennsylvania Avenue, Washington DC 20500
Post17 Sep 2004 15:13   Re: Notch filter with bais
barbar wrote:
I need to design notch filter with Vbais because I use a single supply.
Is some one can show me where I can find that?


Notch filter is like building a bandstop filter but with perfect nulls.

What is Vbais?
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Borber



Joined: 01 Jan 1970
Posts: 1454
Helped: 109
Post17 Sep 2004 15:21   Re: Notch filter with bais
Notch filters can usually have gain 0dB at DC. Can you put a simple voltage divider from supply voltage to input of filter?
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djalli



Joined: 10 Nov 2001
Posts: 887
Helped: 15
Location: 1600 Pennsylvania Avenue, Washington DC 20500
Post19 Sep 2004 13:42   Re: Notch filter with bais
Oh well here is a Matlab script in my collection for notch filter.

djalli

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