Recycle

lampisterio · 24th October 2010, 06:45 PM

And 'I intend to reuse a toroidal core of this size: 190 x 53 mm, internal diameter 90 mm. Where to find formulas for the calculation of the windings? Are the same as those in column?
Many thanks

Lampisterio

ps. sorry for my English

CBS240 · 25th October 2010, 02:14 AM

Find a company that sells transformer kits. They would send wire size and turns info with the kit for that specific transformer.

bob91343 · 25th October 2010, 05:19 AM

To do the job right you need to know the magnetic characteristics of the core material. The flux density you want to use, the effective cross sectional area of the core. Armed with those numbers you can calculate the number of turns, and all the rest. Formulas are available in many texts.

The wire size will depend on the current you expect to flow. The power handling is limited by the window area and wire resistivity.

lampisterio · 25th October 2010, 05:52 PM

Proceed with the traditional calculations, verifying the load current before the secondary winding. At the very least increase the coils. I have an old amplifier with 2sj50 / 2sk135 but still have not decided on the configuration decisive.

Greetings

Lampisterio

24th October 2010, 06:45 PM	#1
lampisterio diyAudio Member Join Date: Oct 2010	Recycle And 'I intend to reuse a toroidal core of this size: 190 x 53 mm, internal diameter 90 mm. Where to find formulas for the calculation of the windings? Are the same as those in column? Many thanks Lampisterio ps. sorry for my English

25th October 2010, 02:14 AM	#2
CBS240 diyAudio Member Join Date: Aug 2005 Location: K-town	Find a company that sells transformer kits. They would send wire size and turns info with the kit for that specific transformer. __________________ All the trouble I've ever been in started out as fun......

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25th October 2010, 05:19 AM	#3
bob91343 diyAudio Member Join Date: Mar 2010	To do the job right you need to know the magnetic characteristics of the core material. The flux density you want to use, the effective cross sectional area of the core. Armed with those numbers you can calculate the number of turns, and all the rest. Formulas are available in many texts. The wire size will depend on the current you expect to flow. The power handling is limited by the window area and wire resistivity.

25th October 2010, 05:52 PM	#4
lampisterio diyAudio Member Join Date: Oct 2010	Proceed with the traditional calculations, verifying the load current before the secondary winding. At the very least increase the coils. I have an old amplifier with 2sj50 / 2sk135 but still have not decided on the configuration decisive. Greetings Lampisterio

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