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Mathew Clayson wrote:
> The next problem is the diodes that are used to convert the AC output of the
> transformer to DC, and the voltage regulator. The diodes supplied are rated at
> 1Amp average current. With an AC supply these should be fine up to 1.5 Amps as
> they are off more then half the time. The regulator chip (lm317) is rated at 1.5
> Amps. But the heat sink is most likely insufficient for that if you are running
> continuously.
I am not sure if it would work, but it may be possible to use a power
transistor to increase the amps.
The heat sink will need to be upgraded to a larger size, and a fan will
definitely need to be installed to compensate for not just the
regulator's heat, but that also of the transistor.
A reference that I looked at:
http://www.zen22142.zen.co.uk/Circuits/Power/boosti.htm
It is for a fixed voltage, but may work for variable.
Then there is always the home-brew controller.
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