File:Clip clamp circuit for high-level signals (after Bob Cordell 2011).png
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editDescriptionClip clamp circuit for high-level signals (after Bob Cordell 2011).png |
English: Adaptive limiter clamp circuit for high-level signals driving power amplifiers - adapted from Cordell 2011 (the original was for line-level signals). The idea is to limit the signal at the input terminal of the output stage, so that the latter never clips. The amp's output stage has a gain of 3, and with rail supply of +/-40V (at idle) it normally clips at exactly 25V RMS into 8 Ohms, or +/- 35V peak (at which point the rails sag to +/-38 V RMS). Thus, the input voltage fed into the output stage must not exceed +/- 11.5 V peak with aforementioned rail voltages; the limit varies with mains voltage. Here, the voltage divider LED1-LED2-R1-R2-R3-R4 tracks the rail voltage; the LEDs account for fixed dead voltage loss in the power output stage (around 3..4 V)
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Date | (original design: published 2011) |
Source | Own based on Cordell, Bob (2011). Designing Audio Power Amplifiers. McGraw-Hill. ISBN 9780071640251 - chapter 17.5 |
Author | user:Retired electrician |
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Public domainPublic domainfalsefalse |
This work is ineligible for copyright and therefore in the public domain because it consists entirely of information that is common property and contains no original authorship. |
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current | 18:05, 17 April 2023 | 1,616 × 1,050 (153 KB) | Retired electrician (talk | contribs) | upd | |
18:01, 17 April 2023 | 1,633 × 911 (134 KB) | Retired electrician (talk | contribs) | revd | ||
05:10, 26 November 2022 | 1,346 × 1,282 (221 KB) | Retired electrician (talk | contribs) | {{Information |Description={{en|Adaptive limiter clamp circuit for high-level signals driving power amplifiers - adapted from Cordell 2011 (the original was for line-level signals). }} |Source=Own based on Cordell, Bob (2011). Designing Audio Power Amplifiers. McGraw-Hill. ISBN 9780071640251 - chapter 17.5 |Date=2021-11-26 (original design: published 2011) |Author=user:Retired electrician |Permission= |other_versions= }} {{PD-ineligible}} Category:Clipping (audio) |
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