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Constant Current Biasing - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


boon
Post subject: Constant Current Biasing Posted: Tue Feb 21, 2006 5:22 pm

Captain

Joined: Tue Feb 21, 2006 5:19 pm
Posts: 17
Hi,

Can anyone tell me how to do constant current biasing for integrated circuit amplifiers. I would perfer a reference or something. I'm sure there are different ways you can do it and i would like to see how they're done. While we're at it, also how to do constant Vbe biasing but not the standard resistive divider way. Current mirror won't because I can't bias my emitter because of swing issues. Thanks a lot.

-B


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IR
Post subject: Posted: Wed Feb 22, 2006 3:11 pm

Site Admin


Joined: Mon Jun 27, 2005 2:02 pm
Posts: 373
Location: Germany
Hello boon,

Yes there is more than one way to bias an amplifier.

Here is an application note, which can be useful for your question:

http://www.odyseus.nildram.co.uk/RFMicr ... rcuits.pdf

Good luck!

_________________
Best regards,

- IR



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