[Lowfer] need a circuit for DC to DC Boost converter

Mike.WE0H we0h at gmx.com
Fri Apr 9 01:10:27 EDT 2010


Build the Tower of Power. Ralph can fill you in on what that is.

12 x 3 = 36 or 7 x 5 = 35

Mike
WE0H



Ralph-W5JGV wrote:
>> I have an 18 Volt DC supply. I want to convert the voltage to
>> 36 Volts DC to power my lowFER PA. Will anyone point me to a
>> circuit to do this ?? I suppose minimal parts count, low ripple,
>> 500 mAmp power handling.
> 
> 
> Since you don't need a lot of current, here are a couple of ideas:
> 
> 1) Find another 18 volt power supply and connect the two supplies in series.
> 
> 2) Scrounge through the local thrift stores for some used inkjet printer
> power supplies.  I have found several switching power supplies rated at
> 30-40 volts DC @ 300-700 mA at my local thrift store.  The HP inkjet
> printers commonly use power supplies in that range.
> 
> Since all of the wall-wart and brick-style switching power supplies have
> isolated outputs, you can easily connect them in series.
> 
> Good luck!
> 
> 73,
> 
> Ralph  W5JGV - WD2XSH/7


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