You are here

Filtering the ripple off a 180V bias line. Impossible? No, PSoCable! | Cypress Semiconductor

Filtering the ripple off a 180V bias line. Impossible? No, PSoCable!

 Here's a great way to use a couple of spare PSoC3 op-amps to do something I bet you thought you couldn't do: reduce the ripple level on a 180V bias voltage (or indeed, any voltage you want, + or -) by a cool 60dB.  So, not only is PSoC3 useful as a supervisor in solid-state power amps, but you can do some great stuff in tube amps as well!

http://www.analog-eetimes.com/en/a-fast-settling-bias-voltage-filter-with-high-ripple-rejection.html?cmp_id=71&news_id=222901909

Oh, and for another trick to help reduce the size of low-frequency gain rolloff caps in compact audio circuits, see my article in Linear Audio (www.linearaudio.net ; you actually have to pay money for it and get a paper version, how retro!  But well worth it.)

Keep on filtering!

 

 

ALL CONTENT AND MATERIALS ON THIS SITE ARE PROVIDED "AS IS". CYPRESS SEMICONDUCTOR AND ITS RESPECTIVE SUPPLIERS MAKE NO REPRESENTATIONS ABOUT THE SUITABILITY OF THESE MATERIALS FOR ANY PURPOSE AND DISCLAIM ALL WARRANTIES AND CONDITIONS WITH REGARD TO THESE MATERIALS, INCLUDING BUT NOT LIMITED TO, ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHT. NO LICENSE, EITHER EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, IS GRANTED BY CYPRESS SEMICONDUCTOR. USE OF THE INFORMATION ON THIS SITE MAY REQUIRE A LICENSE FROM A THIRD PARTY, OR A LICENSE FROM CYPRESS SEMICONDUCTOR.

Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Terms and Conditions of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Terms and Conditions of this site. Cypress Semiconductor and its suppliers reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.