Hi,
I am trying to get 12vdc from mains voltage.
I have the following setup using these components:
Transformer: dual 115v pri, dual 15v sec 300va **broken link removed**
Rectifier: **broken link removed**
i seriesed the primary for 230v mains each sec winding into a 35A rectifier and the dc paralleled then into a capacitor network of 8x 4700mf caps(35v) to a commercial dc-dc converter **broken link removed**
however I am reading 22v dc output not the expected 15vdc or thereabouts, when I put this into the dc-dc convertor that can take a 24v input max it does not work, when i turn the ac off as the caps discharge the dc-dc convertor finally fires up for a few seconds.
If I removed the cap network and just put the dc straight into the dc-dc convertor I again get nothing?
If I put a battery into the dc-dc convertor it works fine.
Where am I going wrong?
Cheers all
I am trying to get 12vdc from mains voltage.
I have the following setup using these components:
Transformer: dual 115v pri, dual 15v sec 300va **broken link removed**
Rectifier: **broken link removed**
i seriesed the primary for 230v mains each sec winding into a 35A rectifier and the dc paralleled then into a capacitor network of 8x 4700mf caps(35v) to a commercial dc-dc converter **broken link removed**
however I am reading 22v dc output not the expected 15vdc or thereabouts, when I put this into the dc-dc convertor that can take a 24v input max it does not work, when i turn the ac off as the caps discharge the dc-dc convertor finally fires up for a few seconds.
If I removed the cap network and just put the dc straight into the dc-dc convertor I again get nothing?
If I put a battery into the dc-dc convertor it works fine.
Where am I going wrong?
Cheers all
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