Does anyone know of a schematic or a link to a schematic for a "switchmode power supply to provide up to 180 volts from 9 -12vdc"?

thank you

 

It's such a completely obscure requirement I doubt anyone has?. You also don't give much information, such as if it's AC or DC? (presumably DC?, as it's such an unusual voltage), and what current is required?, for that matter what it's for?.

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Sorry

Brain too fast for slow hands.

The PS is for a Nixie Tube Clock. These "tubes" need around 170-180vdc to operate. Instead of using transformers, I saw someone using a Switchmode to up there 9vdc that powers the TTL's (+5v) to 180vdc @ 2ma to power the tubes. This would be smaller package than 2x 120vac transformers.

 

Try this link, in the schematic there is a switchmode power supply for nixies using either a MAX771 or a MC34063A.
http://www.zetalink.biz/GKK-UM-v2.6.pdf

 

Thank you, that's perfect. Now I can go and blow myself up

Thank you again

 

http://www.instructables.com/ex/i/B5...506/?ALLSTEPS=

Here's one using a wee PIC, it's for running nixie tubes

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Try www.ledsales.com.au for a kit.
http://www.ledsales.com.au/cart.php?...category_id=16

For the US, try www.allspectrum.com
http://www.allspectrum.com/store/pro...el+%23+HV-SMPS

I have ordered from the Australian site, the kit works really well.