[Lab] How do you boost voltage without a transformer?

[Richard Guy Briggs]

On Thu, Sep 22, 2011 at 07:51:33AM -0400, Darcy Whyte wrote:
> I have one of these: http://mambohead.com/2011/09/3-4-vdc-to-34v-booster/
> 
> Anybody know how they work?

Using an oscillator at a high frequency (around 100kHz) with
a chain of diode/capacitor voltage doublers or a much smaller
transformer than usual.  It is a switched-mode power supply.  If you
look carefully, you can see a transformer on that board, lower right
side, labelled "101".

	http://en.wikipedia.org/wiki/Switched-mode_power_supply

I'm going to try building something similar but from 1.5V DC up to 150V
AC at 4kHz to power 2' of ElectroLuminescent wire to be self-contained
in a bicycle wheel.

	slainte mhath, RGB

--
Richard Guy Briggs               --  ~\    -- ~\            <hpv.tricolour.net>
<www.TriColour.net>                --  \___   o \@       @       Ride yer bike!
Ottawa, ON, CANADA                  --  Lo_>__M__\\/\%__\\/\%
Vote! -- <greenparty.ca>_____GTVS6#790__(*)__(*)________(*)(*)_________________