Workhorse, then your idea should be used with iron-powder cores, while these have continous saturation (gapped ferrites sature steeply at one point).
So treshold could be set by the saturation of the core.
I will try this method, but so far I would stick to my current-transformer idea, due to more predictable result.
So treshold could be set by the saturation of the core.
I will try this method, but so far I would stick to my current-transformer idea, due to more predictable result.
Hello,
I was reading some previous discussions. Most of us do not have proper instrument to measure Inductance of coil. Well, I use Arta for inductance measurement. Hope most of us have used LIMP (which is a part of ARTA) tool before to measure TS of drivers. The very same LIMP can do the job for us.
If you want me to post how to do it, I would create a document and post here for you. Pl let me know.
I was reading some previous discussions. Most of us do not have proper instrument to measure Inductance of coil. Well, I use Arta for inductance measurement. Hope most of us have used LIMP (which is a part of ARTA) tool before to measure TS of drivers. The very same LIMP can do the job for us.
If you want me to post how to do it, I would create a document and post here for you. Pl let me know.
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I meant we most are not able to measure exact inductance of coil made, because we being hobbyist do not have and cant afford to have complete range of test ans measuring instruments.
I am already using it on T200-6 from microtmetals distributed air gap iron-powder core.
A link for software tool to design toroidal coil inductor
Download here
if any one of you is already using this let me know.
Download here
if any one of you is already using this let me know.
It doesn't exhibit steep saturation curve like Ferrites do.......I have found it good for Class-D output inductor mainly in high current applications.
I have checked sendust with 60u[initial perm] it takes less turns for same value of inductance and also exhibit softer saturation curve but its very expensive than same size micrometal.
Gapped ferrites also work but they heat up alot , whereas these cores have negligible core loss and only loss is copper loss associated with them.
Hi everyone,
Am not a fan of class d but i thought of reading through this thread to find out builders' experience.I kinda stumbled upon this:DIY 1000 Watt High End Mosfet Power Amp Circuits | Digital Technology News and Review and thought i could share with you.Maybe its already somewhere in this thread i,don't know.
Regards.
Am not a fan of class d but i thought of reading through this thread to find out builders' experience.I kinda stumbled upon this:DIY 1000 Watt High End Mosfet Power Amp Circuits | Digital Technology News and Review and thought i could share with you.Maybe its already somewhere in this thread i,don't know.
Regards.
It must be something like this. The current bear the inductor must be commensurate with the output peaks.
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Comrades, here are some pictures of a couple of UCD's. The sources are 55V and 48V. Excellent sound and clean. Barely perceptible warming and controlled by a fan. This assembly is to be disposed, in order to accommodate a Rectified 85V transformer from an old Peavey's CS800 for a couple of UCD's of 400-500W output.
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Greetings!
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This is exactly what the thread is about.
97% efficiency is false, and High-End is something completely different.
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. ty again