Can you help me for Isolated DC to DC - Electronic Circuits Projects Diagrams Free

gbmewada · 13th October 2007, 11:58 AM

Hiiii
I want to design isolated DC to DC converter for 1W application My req are input- 24V DC and output is +12V,0V and -12V,
Thanks Byeeeeee

ericgibbs · 13th October 2007, 12:16 PM

Quote:

Originally Posted by gbmewada

Hiiii
I want to design isolated DC to DC converter for 1W application My req are input- 24V DC and output is +12V,0V and -12V,
Thanks Byeeeeee

If you have the option, you can buy 1Watt DC/DC convertors, must you design it yourself?

Do you really mean minus 24Vdc input? input- 24V DC

**Nigel Goodwin** · 13th October 2007, 12:24 PM

Quote:

Originally Posted by ericgibbs

Do you really mean minus 24Vdc input? input- 24V DC

I wouldn't have thought so?, but as he specified 'isolated outputs' it makes no difference whatsoever.

dknguyen · 13th October 2007, 07:27 PM

If you can buy, just buy this:
http://www.v-infinity.com/adtemplate...bcatky3=842997
from here:
http://www.digikey.com/scripts/dksea...me=102-1355-ND

Or if you need regulated, then buy the regulated version:
http://www.v-infinity.com/adtemplate...bcatky3=226849
But it's not available from Digikey.

gbmewada · 15th October 2007, 04:04 AM

See i can buy it
but it is not case of 1 pcs
It is case of more than 1000pcs for year
And if i know how to desing 1W DC to DC i can desing more wattage DC to DC also. And generally 1 W DC to DC are available at price of $1.5 and to desing it at home(means company) it will not cost more than $0.5!!! so tell me for more that 1000pcs which is better " TO BUY OR TO DESING"

Sceadwian · 15th October 2007, 04:40 AM

You have to price out design cost, part cost, assembly cost and time required for both sollutions, there is no easy answer that kind of question, you have to crunch the numbers.

blueroomelectronics · 15th October 2007, 05:10 AM

Quote:

Originally Posted by gbmewada

See i can buy it
but it is not case of 1 pcs
It is case of more than 1000pcs for year
And if i know how to desing 1W DC to DC i can desing more wattage DC to DC also. And generally 1 W DC to DC are available at price of $1.5 and to desing it at home(means company) it will not cost more than $0.5!!! so tell me for more that 1000pcs which is better " TO BUY OR TO DESING"

It's doubtful it can be designed from scratch for less than $1.50, post your schematic. Do you have the background to design such a circuit?

ericgibbs · 15th October 2007, 07:00 AM

Quote:

Originally Posted by gbmewada

See i can buy it
but it is not case of 1 pcs
It is case of more than 1000pcs for year
And if i know how to desing 1W DC to DC i can desing more wattage DC to DC also. And generally 1 W DC to DC are available at price of $1.5 and to desing it at home(means company) it will not cost more than $0.5!!! so tell me for more that 1000pcs which is better " TO BUY OR TO DESING"

hi,
Are you quoting a one off price at $1.5??
If so 1000 pieces would be around $0.5?

Have you contacted suppliers and asked for a quote on 1000 pieces?

Any decent supplier will also allow you to have a 'call off' quantity each month based on a 1000 piece order.

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13th October 2007, 11:58 AM	(permalink)
gbmewada	Can you help me for Isolated DC to DC Hiiii I want to design isolated DC to DC converter for 1W application My req are input- 24V DC and output is +12V,0V and -12V, Thanks Byeeeeee

13th October 2007, 07:27 PM	(permalink)
dknguyen	If you can buy, just buy this: http://www.v-infinity.com/adtemplate...bcatky3=842997 from here: http://www.digikey.com/scripts/dksea...me=102-1355-ND Or if you need regulated, then buy the regulated version: http://www.v-infinity.com/adtemplate...bcatky3=226849 But it's not available from Digikey.

15th October 2007, 04:04 AM	(permalink)
gbmewada	See i can buy it but it is not case of 1 pcs It is case of more than 1000pcs for year And if i know how to desing 1W DC to DC i can desing more wattage DC to DC also. And generally 1 W DC to DC are available at price of $1.5 and to desing it at home(means company) it will not cost more than $0.5!!! so tell me for more that 1000pcs which is better " TO BUY OR TO DESING"

15th October 2007, 04:40 AM	(permalink)
Sceadwian	You have to price out design cost, part cost, assembly cost and time required for both sollutions, there is no easy answer that kind of question, you have to crunch the numbers. __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."