Hello,

How to achieve specs as below for Non Isolated DC-DC Converter

Input : +15V & -15V with common GND

Output : +5V/1.5A & -5V/ 500mA

Eff : >90%

Pls help me share some proven circuit using Buck Regulator IC / Eq.

Thanks

 

Use Analog, TI, Maxim, ONSEMI, ST etc etc. pages to filter a proper controller ICs.

 

The TI web site has an app that will design a dc to dc converter for you.

Bob

 

could this help you get the background information: https://hardwarebee.com/WikiBee/flyback-converter/

 

As far as how to make a non-isolated power supply to your specifications, it is just best to assume that you can't.

 

Hello,

Thanks all for reply

I am refine my specs as below,

Input : -15Vdc

Output : -5V/ 250mA

Eff : >85-90%

Pls help me share some proven circuit using Buck Regulator IC / Eq.

Thanks