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| Module to convert constant voltage power supply into a tunable power supply? |
| (1/1) |
| Plasmateur:
Perhaps I'm not using the right terms when searching for such a device. Let's say I have a 48V 20A power supply and I want to be able to vary the output voltage of this supply through some module which will give readouts of voltage and current. Maybe even be programmable? Does such a device exist? |
| ledtester:
Ruideng makes a line of buck converters which work well, e.g.: https://www.banggood.com/RIDEN-DPS5020-Constant-Voltage-Current-Step-Down-Communication-Digital-Power-Supply-Module-p-1181200.html Their official store on Aliexpress: https://rdtech.aliexpress.com/store/923042 |
| Plasmateur:
--- Quote from: ledtester on August 25, 2019, 04:09:04 am ---Ruideng makes a line of buck converters which work well, e.g.: https://www.banggood.com/RIDEN-DPS5020-Constant-Voltage-Current-Step-Down-Communication-Digital-Power-Supply-Module-p-1181200.html Their official store on Aliexpress: https://rdtech.aliexpress.com/store/923042 --- End quote --- Wow. This is awesome. Is the negative side ground refferenced? Can these handle inductive loads? I wonder if I can parallel these for my current requirements. |
| ledtester:
I have a DPS5015 and the negative input is the same as the negative output. For inductive loads the manual says to limit the max current to, I believe, 5A for my model. It's not exactly clear why you need to derate the current capability and whether an inductive load can damage the device. The only info you get on the matter is presented at the very beginning of this video: https://youtu.be/LyyEOLGm4oA There is also a warning on that screen about not using the supply in series or parallel with other supplies. |
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