I've been looking at building a Benthtop PSU and found that you can buy very cheap DC-DC converters based on the LM2596 chip. They take up to 40v input and can output anything from about 1.5 - 37V at a couple of amps.
Here are a few links:
LM2596 Mini DC-DC Step Down Adjustable Power Supply Module | eBay
LM2596 DC-DC Converter Board Voltage Regulator Stepdown Module Built in LM2596S | eBay
New LM2596 DC Buck Step-Down Voltage Adjustable Converter Power Module Regulator | eBay
This one looks interesting:
LED Voltage and current display LM2596 DC-DC Step Down CC-CV Adjust Power Supply | eBay
OK, now time for my question.....
If I want to make a dual output power supply that I can connect in series to give me a +/- DC voltage, for testing OpAmp circuits etc, can I use two of these DC-DC converters? I was thinking it would work, as long as I use a dual secondary mains transformer and feed each DC-DC converter from a different winding.
Any thoughts?
Here are a few links:
LM2596 Mini DC-DC Step Down Adjustable Power Supply Module | eBay
LM2596 DC-DC Converter Board Voltage Regulator Stepdown Module Built in LM2596S | eBay
New LM2596 DC Buck Step-Down Voltage Adjustable Converter Power Module Regulator | eBay
This one looks interesting:
LED Voltage and current display LM2596 DC-DC Step Down CC-CV Adjust Power Supply | eBay
OK, now time for my question.....
If I want to make a dual output power supply that I can connect in series to give me a +/- DC voltage, for testing OpAmp circuits etc, can I use two of these DC-DC converters? I was thinking it would work, as long as I use a dual secondary mains transformer and feed each DC-DC converter from a different winding.
Any thoughts?