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update on clipping detection.
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<blockquote data-quote="thylantyr" data-source="post: 1540080" data-attributes="member: 560358"><p><strong>@thylantyr, your idea is a DMM replacement, you don't detect clipping at all, but rather a voltage output that you concider to be clipped. </strong></p><p></p><p>For sake of argument. Lets say the sine wave peak is 50v. But at 50.1v the</p><p></p><p>signal clips. If you calibrate the detector using 50v as the reference then it's</p><p></p><p>true that the detector may trigger and say it's clipped, but in reality you need</p><p></p><p>0.1 more volts to be actually clipping. Point is, who cares about that kind of precision ?</p><p></p><p>You are essentially calibrating the detector to the amplifier's performance envelope</p><p></p><p>which is pretty good, but every method has flaws. If you change</p><p></p><p>the load, clipping will occur at a different voltage. Depending on the amplifier</p><p></p><p>design, clipping can be different based on frequency too. Even clipping indicators</p><p></p><p>found internally in amplifiers {like proaudio} are not precision instruments,</p><p></p><p>hence I call them toys //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif</p><p></p><p>You need a circuit that operates at full bandwidth and is load independent too.</p><p></p><p>You can mod your circuit so it's opamp based to remove loading effects, but how do</p><p></p><p>you make it full bandwidth?</p><p></p><p><strong>@Thylantyr, the RF amp may be a bit off topic. possibly start a thread? also, i'm a bit confused by the circuit depiction, are all elements in series?</strong></p><p></p><p>I'm too lazy to draw a diagram on the computer or start a thread.</p><p></p><p>The elements are in series, there is two sets of elements. This is essentially an</p><p></p><p>ordinary class H power supply with dual rail but you have an electric switch and watch dog circuits to figure out when to enable/disable the switch.</p><p></p><p>It's a 5 minute brainstorming session concept, what happens if we give the idea deeper thought? /lol/</p><p></p><p>What is funny is that the idea can be tested on an existing class H amplifier</p><p></p><p>with PS modification so you don't have to design the amplifier from scratch. Just</p><p></p><p>make the smart power supply. This would make a nice science project for</p><p></p><p>interested parties.</p><p></p><p>*or.. wait until RF gets the patent and take a peek* /cheating</p></blockquote><p></p>
[QUOTE="thylantyr, post: 1540080, member: 560358"] [B]@thylantyr, your idea is a DMM replacement, you don't detect clipping at all, but rather a voltage output that you concider to be clipped. [/B] For sake of argument. Lets say the sine wave peak is 50v. But at 50.1v the signal clips. If you calibrate the detector using 50v as the reference then it's true that the detector may trigger and say it's clipped, but in reality you need 0.1 more volts to be actually clipping. Point is, who cares about that kind of precision ? You are essentially calibrating the detector to the amplifier's performance envelope which is pretty good, but every method has flaws. If you change the load, clipping will occur at a different voltage. Depending on the amplifier design, clipping can be different based on frequency too. Even clipping indicators found internally in amplifiers {like proaudio} are not precision instruments, hence I call them toys [IMG]//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif[/IMG] You need a circuit that operates at full bandwidth and is load independent too. You can mod your circuit so it's opamp based to remove loading effects, but how do you make it full bandwidth? [B]@Thylantyr, the RF amp may be a bit off topic. possibly start a thread? also, i'm a bit confused by the circuit depiction, are all elements in series?[/B] I'm too lazy to draw a diagram on the computer or start a thread. The elements are in series, there is two sets of elements. This is essentially an ordinary class H power supply with dual rail but you have an electric switch and watch dog circuits to figure out when to enable/disable the switch. It's a 5 minute brainstorming session concept, what happens if we give the idea deeper thought? /lol/ What is funny is that the idea can be tested on an existing class H amplifier with PS modification so you don't have to design the amplifier from scratch. Just make the smart power supply. This would make a nice science project for interested parties. *or.. wait until RF gets the patent and take a peek* /cheating [/QUOTE]
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update on clipping detection.
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