Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

SMPS design can change polarity and get more current?

Status
Not open for further replies.
P

Prototype21

Junior Member level 1
Joined
Mar 3, 2020
Messages
15
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
121
Hi guys, I´m new to Switching Power Supplies. I was reading the EPR32.pdf and I find a device to assembly. This project has an output of -24v/50mA. How I can swap the voltage to positive and improve the current Iout to 1A?

image.png
 

Hi,

Basically you need to rewind the transformer with inverted polarity of the 24V output (mind the dot).
Thicker wires, maybe even bigger size core. Bigger catch diode and bigger capacitor....
A lot of modifications ... is it worth it?

Klaus
 

The polarity of that output relative to the other outputs is defined by the transformer windings, so you'd need to replace the transformer. At that point you're basically looking at an entirely new design. You're also asking to double the total output power of the supply...
 

Hi,
Kindly post exactly what is your required voltage and current ratings.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top