loudspeaker magnet charger power supply
- Thread starter yugal
- Start date
DCPreamp
New member
Hi yugal,
I think there's some confusion about your post. Are you looking to use a speaker magnet to build a switching power supply (SMPS)? If this is the case, I think you may have confused the appearance of a speaker magnet with a ferrite toroid core. While on a simple level, they look similar, they are, in fact, very different from each other and are not interchangeable! I'd highly recommend you do a little research first, and then rethink your project.
Magnets: http://en.wikipedia.org/wiki/Magnet
Ferrite core: http://en.wikipedia.org/wiki/Ferrite_core
Then, when these are clear, take a look at some SMPS basics: http://en.wikipedia.org/wiki/Switched-mode_power_supply
If you look at those three links, you should gain enough knowledge to really get your project planned out and on its way to becoming reality! And, you've already found the best place to make that happen with some great support! I hope this helps a little.
I think there's some confusion about your post. Are you looking to use a speaker magnet to build a switching power supply (SMPS)? If this is the case, I think you may have confused the appearance of a speaker magnet with a ferrite toroid core. While on a simple level, they look similar, they are, in fact, very different from each other and are not interchangeable! I'd highly recommend you do a little research first, and then rethink your project.
Magnets: http://en.wikipedia.org/wiki/Magnet
Ferrite core: http://en.wikipedia.org/wiki/Ferrite_core
Then, when these are clear, take a look at some SMPS basics: http://en.wikipedia.org/wiki/Switched-mode_power_supply
If you look at those three links, you should gain enough knowledge to really get your project planned out and on its way to becoming reality! And, you've already found the best place to make that happen with some great support! I hope this helps a little.
hi i found a similar design in link below without circuits
http://www.audioheritage.org/vbulle...-magnetizing-fixture&highlight=magnet+charger
http://www.audioheritage.org/vbulle...-magnetizing-fixture&highlight=magnet+charger
hi all , since 20 day not a single advice. mkubawat and asquare please help me because a am a new member,i can not pm. currently i am assembling 12 inch to 18 inch full range speaker and dc power supply at delhi india. but due to my old type magnetizer,i facing problems .
yugal
yugal
DCPreamp
New member
Ah, I understand now what you're looking for. My apologies for missing your intent.
One of my electronics college labs had a large (about 100Lbs, bench-top) industrial magnetizer or "magnet charger." It looked similar to a huge transformer with a gap cut into part of the iron core. On both side of the core where giant windings of wires and there was a control box. The way it worked was to take 110VAC wall current, then rectify the voltage through a bridge to form pulsing DC current, then that pulsating current runs through the windings around the core causing a massive (IIRC it produced a field in the range of 50 Torr in the gap) pulsing magnetic field to be present in the gap of the core. The piece of metal to be magnetized was placed in the gap, the unit was turned on, it was run for a minute or two, then turned off. Then depending on the metal being "charged," it would have its metal particles aligned causing it to retain a huge magnetic field.
So my description is basically how to construct one. Look at:
http://en.wikipedia.org/wiki/Magnetic_circuit
http://en.wikipedia.org/wiki/Electromagnetism
http://gasengine.farmcollector.com/restoration/gas-engines/make-your-own-magnet-charger.aspx
http://www.smokstak.com/articles/magnet_charger.html
http://www.oldengine.org/members/rotigel/magnet/
Pic searches:
http://www.bing.com/images/search?q=industrial+magnet+charger&go=&qs=bs&form=QBIR
https://www.google.com/search?hl=en....123.1411.15j1.16.0...0.0...1ac.1.hs2zOhLnc9c
Sorry I don't have any project specifics, but this should really get you going!
Paul
One of my electronics college labs had a large (about 100Lbs, bench-top) industrial magnetizer or "magnet charger." It looked similar to a huge transformer with a gap cut into part of the iron core. On both side of the core where giant windings of wires and there was a control box. The way it worked was to take 110VAC wall current, then rectify the voltage through a bridge to form pulsing DC current, then that pulsating current runs through the windings around the core causing a massive (IIRC it produced a field in the range of 50 Torr in the gap) pulsing magnetic field to be present in the gap of the core. The piece of metal to be magnetized was placed in the gap, the unit was turned on, it was run for a minute or two, then turned off. Then depending on the metal being "charged," it would have its metal particles aligned causing it to retain a huge magnetic field.
So my description is basically how to construct one. Look at:
http://en.wikipedia.org/wiki/Magnetic_circuit
http://en.wikipedia.org/wiki/Electromagnetism
http://gasengine.farmcollector.com/restoration/gas-engines/make-your-own-magnet-charger.aspx
http://www.smokstak.com/articles/magnet_charger.html
http://www.oldengine.org/members/rotigel/magnet/
Pic searches:
http://www.bing.com/images/search?q=industrial+magnet+charger&go=&qs=bs&form=QBIR
https://www.google.com/search?hl=en....123.1411.15j1.16.0...0.0...1ac.1.hs2zOhLnc9c
Sorry I don't have any project specifics, but this should really get you going!
Paul