Non-insulated DC/DC negative voltage

Thread Starter

srecenvid

Joined May 10, 2018
31
Hello everyone,

I am currently working on project requiring +15 and -15VDC 10A. Checking option I decided to use
i6A4W020A033V-001-R (manual)

this is non-isolated dc-dc Buck/Step-Down Converter. I am not sure if I can use this converters as I intend to. Is this even possible, or I have to use more expensive isolated DC/DC converters?

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Ian0

Joined Aug 7, 2020
4,821
Not going to work - all the GND terminals are internally connected.

A Čuk converter will give you a negative output voltage from a positive input voltage.
 

Thread Starter

srecenvid

Joined May 10, 2018
31
Do You seriously need a ~300-Watt Split-Supply ?
Or are You just building-in plenty of overhead ?
I'd be very interested to find out what You intend to power with this.

~$103.oo each, You'll need 2 ..................
https://www.digikey.com/en/products/detail/semiconductor-circuits-inc/CPC10C48/13153146
http://www.dcdc.com/PDF/CPC_2-1_Brief_R1.pdf
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.
.
Yes, its requirement for laser scanner. We are upgrading scanner with 2axis which requires 5A per axis -15 +15. So at the end we need this.
 

Thread Starter

srecenvid

Joined May 10, 2018
31
Do You seriously need a ~300-Watt Split-Supply ?
Or are You just building-in plenty of overhead ?
I'd be very interested to find out what You intend to power with this.

~$103.oo each, You'll need 2 ..................
https://www.digikey.com/en/products/detail/semiconductor-circuits-inc/CPC10C48/13153146
http://www.dcdc.com/PDF/CPC_2-1_Brief_R1.pdf
.
.
.
CN200A110-15 TDK-Lambda | Mouser Europe
or
CHS3002415 Cosel USA, Inc. | Power Supplies - Board Mount | DigiKey
could also work, but I was hoping to get something closer to 50-60eur...
 
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