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Car Audio Equipment
Amplifiers
Korean compared to Brazilian amplifiers (Electrical theory stuff)
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<blockquote data-quote="Papermaker85" data-source="post: 8491369" data-attributes="member: 572595"><p>From my experience power compression and electrical losses are FAR greater in inducing distortion. while its hard to argue that inductance along with other shifts as well as phase shifts/angle introduce little distortion alone I feel they DO compound the electromagnetic distortion further. I can't ignore the fact the heat and back EMF do directly alter your B/L curve/actual motor strength under applied power for a given alignment(excursion based) does MUCH more non-linear "motor strength" distortion than simple the typical b/l curve. then again I'm an idiot so who knows... matter fact Ive started to nearly ignore most small signal parameters except for using it as a basis of how much of a shift occurs. Naturally the drivers parameters shift once its up to operating temperature but that linear rise is the real key to having a linear b/l curve..</p><p></p><p>I will say it DOES help to have a very linear B/L curve but if the power compression its to great to even reach its maximum excursion in a specific alignment your motor is going to be even more non-linear than say starting off with a "average" curve and keeping power compression minimum..</p><p></p><p>BTW the driver I'm working on has a extended pole with a FULL copper sleeve on the tyoke and has nearly every cooling trick in the book its probably not going to be hear by the average customer but I can feel at rest these techniques work and will provide a better overall proformance in both lower distortion and output, wth the exception the copper sleve is higher diamagnetic the motor has to be pretty **** huge to get the desired motor strength to be competitive which cost about 15% more per unit vs using a smaller motor and no machines internals..</p></blockquote><p></p>
[QUOTE="Papermaker85, post: 8491369, member: 572595"] From my experience power compression and electrical losses are FAR greater in inducing distortion. while its hard to argue that inductance along with other shifts as well as phase shifts/angle introduce little distortion alone I feel they DO compound the electromagnetic distortion further. I can't ignore the fact the heat and back EMF do directly alter your B/L curve/actual motor strength under applied power for a given alignment(excursion based) does MUCH more non-linear "motor strength" distortion than simple the typical b/l curve. then again I'm an idiot so who knows... matter fact Ive started to nearly ignore most small signal parameters except for using it as a basis of how much of a shift occurs. Naturally the drivers parameters shift once its up to operating temperature but that linear rise is the real key to having a linear b/l curve.. I will say it DOES help to have a very linear B/L curve but if the power compression its to great to even reach its maximum excursion in a specific alignment your motor is going to be even more non-linear than say starting off with a "average" curve and keeping power compression minimum.. BTW the driver I'm working on has a extended pole with a FULL copper sleeve on the tyoke and has nearly every cooling trick in the book its probably not going to be hear by the average customer but I can feel at rest these techniques work and will provide a better overall proformance in both lower distortion and output, wth the exception the copper sleve is higher diamagnetic the motor has to be pretty **** huge to get the desired motor strength to be competitive which cost about 15% more per unit vs using a smaller motor and no machines internals.. [/QUOTE]
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Korean compared to Brazilian amplifiers (Electrical theory stuff)
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