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Author Topic: Transformer output  (Read 1352 times)

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Offline DeathwishTopic starter

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Transformer output
« on: August 12, 2015, 11:46:48 am »
Will a 2x18v output at 18VA give me 1amp output or .5 amp.

I am looking at this..

https://uk.rs-online.com/web/p/pcb-transformers/2017280/
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Offline McBryce

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Re: Transformer output
« Reply #1 on: August 12, 2015, 12:02:19 pm »
If you look at the print on the actual transformer it gives it away: It's 9VA per secondary winding. So each of the 18V can give you 500mA.

McBryce.
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Offline DeathwishTopic starter

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Re: Transformer output
« Reply #2 on: August 12, 2015, 12:16:35 pm »
but , and there is always one of those, if I centre tap the two lines is that then 1 amp or .500 , line to line voltage confuses me.
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Electrons are typically male, always looking for any hole to get into.
trying to strangle someone who talks out of their rectal cavity will fail, they can still breath.
God hates North Wales, he has put my home address on the blacklist of all couriers with instructions to divert all parcels.
 

Offline McBryce

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Re: Transformer output
« Reply #3 on: August 12, 2015, 12:20:08 pm »
If you join the two 0 - 18V secondary windings together you'll have 36V at 500mA. Or if you tap the centre to make a split rail to supply +18V / 0V / -18V, you'll get +18V at 500mA and -18V at 500mA.

McBryce.
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Offline DeathwishTopic starter

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Re: Transformer output
« Reply #4 on: August 12, 2015, 12:36:13 pm »
Thank you McB that was what I was after. I need to split rail it so i will get 500mA which is enough. Your a star.
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Electrons are typically male, always looking for any hole to get into.
trying to strangle someone who talks out of their rectal cavity will fail, they can still breath.
God hates North Wales, he has put my home address on the blacklist of all couriers with instructions to divert all parcels.
 
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