- #1
zoteman94
- 10
- 0
Hi.
I have made a 12Vdc 3A unregulated power supply for my projects.
I want to do some electrodeposition, and the 12V are a bit too high (It starts to electrolyze water and the deposited copper breaks very easily).
I'm looking for a way to step-down the voltage without using too much money (electronic components are expensive where I live).
My power supply is a simple
Mains -> transformer -> rectifier diodes -> 4 1000 microfarad capacitors in parallel.
(As I'm not using anything sensitive on the output, I don't care about the voltage ripple).
I'm looking for advice to step-down the voltage to less than 1V without too much power loss. It doesn't have to produce a very precise voltage or be free of rippling. But should not be too inefficient and be able to manage a variable load.
Options that I have considered:
Adding another transformer to the output of my actual transformer:
This option would be pretty nice as it let's me get more current on the low voltage side. However, it's a bit expensive.
Using a step-down boost converter:
Again, seems pretty nice but somewhat expensive.
I ruled out resistor/capacitor/inductor voltage dividers because they have very big losses and I want to be able to change the output load.
I'd appreciate any other ideas. Or help selecting between what I said before.
Apologies for my bad English, and thanks for your help.
I have made a 12Vdc 3A unregulated power supply for my projects.
I want to do some electrodeposition, and the 12V are a bit too high (It starts to electrolyze water and the deposited copper breaks very easily).
I'm looking for a way to step-down the voltage without using too much money (electronic components are expensive where I live).
My power supply is a simple
Mains -> transformer -> rectifier diodes -> 4 1000 microfarad capacitors in parallel.
(As I'm not using anything sensitive on the output, I don't care about the voltage ripple).
I'm looking for advice to step-down the voltage to less than 1V without too much power loss. It doesn't have to produce a very precise voltage or be free of rippling. But should not be too inefficient and be able to manage a variable load.
Options that I have considered:
Adding another transformer to the output of my actual transformer:
This option would be pretty nice as it let's me get more current on the low voltage side. However, it's a bit expensive.
Using a step-down boost converter:
Again, seems pretty nice but somewhat expensive.
I ruled out resistor/capacitor/inductor voltage dividers because they have very big losses and I want to be able to change the output load.
I'd appreciate any other ideas. Or help selecting between what I said before.
Apologies for my bad English, and thanks for your help.