Servo for correcting DC offset and drift

alaskanaudio · 16th November 2001, 04:01 PM

I had a requirement to design a DC offset and DC drift correcting circuit for a project that I have been working on. One of the requirements was to correct for amplifier DC offset/drift yet allow the amplifier to operate down to DC with minimum error. I plan to use this in various projects.

The design I choose to use is pretty universal and can be adapted to work with a lot of different amplifiers with minor parts value changes.

If anyone is interested in such a design I can generate some PDF files for the circuit diagram and the two sided printed circuit board along with a short circuit description. This would take me several days since I do have some other thinks that need to get done.

Let me know if you are interested.

John Fassotte
Alaskan Audio
http://www.audioamps.com

Geoff · 16th November 2001, 04:17 PM

John

I'm not too concerned about the pcb layout, but would be most interested in a copy of the schematic and circuit description.

Geoff

alaskanaudio · 17th November 2001, 04:05 AM

Geoff,

I have had a few minutes to post this on my site.

http://www.audioamps.com/diyprojects.../servo01.1.htm

John

Geoff · 17th November 2001, 11:36 AM

John

Thanks for posting the details. More reading to do this weekend :-)

Geoff

17th November 2001, 04:05 AM	#3
alaskanaudio diyAudio Member Join Date: Sep 2001 Location: Fairbanks, Alaska	The circuit and short explanation Geoff, I have had a few minutes to post this on my site. http://www.audioamps.com/diyprojects.../servo01.1.htm John

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
How to minimize output offset drift w/o servo??	Leolabs	Solid State	14	10th November 2006 02:27 PM
High offset drift	darkfenriz	Solid State	11	4th February 2006 10:35 AM
JLH Help - Minimise dc offset drift	CY	Solid State	2	16th November 2004 05:25 AM
DC offset drift	BBB	Pass Labs	5	20th December 2002 05:42 PM
DC-Servo output Drift.	Dave	Solid State	9	30th May 2002 12:26 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

16th November 2001, 04:01 PM	#1
alaskanaudio diyAudio Member Join Date: Sep 2001 Location: Fairbanks, Alaska	I had a requirement to design a DC offset and DC drift correcting circuit for a project that I have been working on. One of the requirements was to correct for amplifier DC offset/drift yet allow the amplifier to operate down to DC with minimum error. I plan to use this in various projects. The design I choose to use is pretty universal and can be adapted to work with a lot of different amplifiers with minor parts value changes. If anyone is interested in such a design I can generate some PDF files for the circuit diagram and the two sided printed circuit board along with a short circuit description. This would take me several days since I do have some other thinks that need to get done. Let me know if you are interested. John Fassotte Alaskan Audio http://www.audioamps.com

16th November 2001, 04:17 PM	#2
Geoff diyAudio Member Join Date: Apr 2001 Location: UK	John I'm not too concerned about the pcb layout, but would be most interested in a copy of the schematic and circuit description. Geoff

17th November 2001, 11:36 AM	#4
Geoff diyAudio Member Join Date: Apr 2001 Location: UK	John Thanks for posting the details. More reading to do this weekend :-) Geoff

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)