change over circuit for cpath machine

[Visitor]

research as I am aware that going from 48v to 24 would create LOTS of heat

Why do I even try????

You'll need a switch-mode regulator that can handle 6 amps+ at 48 volts.

A linear regulator will convert excess voltage to heat:

Power dissipated = current × voltage_drop

This is true for ALL LINEAR REGULATORS.

A switch-mode regulator can be 90%+ efficient. Instead of converting 50%+ of the battery's energy to heat, the loss will be less than 10%.

But you have to pay attention to the starting current. Otherwise, this project, like my time, will go down the drain.

And figure out how to turn off the humidifier.

 

[Visitor]

This may do the trick for you. No guarantees from me.

DC-DC Buck Step-down Converter Voltage Regulator 6.5V-60V to 1.25-30V 10A Parts | eBay

This is a DC-DC step down converter module that convert 6.5V-60V to 1.25-30V, maximum current is 10A. Load capacity: up to 10A. Output: 1.25-30V (adjustable). Due to the difference between different monitors, the picture may not reflect the actual color of the item.

www.ebay.com

 

[shortbus=]

Some work as you say. Many are heated, as is the one in this discussion (apparently).

He could put his linear regulator in the humidifier water and kill 2 birds with one stone.

 

[MrDEB]

going to reevaluate this whole mess.
leaning towards just buying a prebuilt unit