Which is better voltage multiplier circuit???

[robo5050]

Hello forum members,

I am deciding whether a diode/capacitor CW circuit,or a hand-wound step-up transformer is easier,and more practical; I am only needing at most a voltage multiplier(I am aimimg for 36 volt from a 12 volt AGM design strategy!) for my electric pmdc powered bike trailer with dual curry brushed motors-I have magnet wire,T200 toroid,fiberglass tape,some electrolytic caps, hi amp diodes so either way it would be practical to make a decent working voltage multiplier!

I basically want to know which "vm" circuits that the members have used with good results, and what circuit is more efficient/practical??

btw,I have uploaded a few examples of voltage multiplier circuits similar to what I will like to try,although the transformer core I will be using is a toroid design,and not a split-bobbin/E core design-I am probably going with the diy hand wound stepup power transformer since it will most likely be able to handle the high amperes that the 2 Curry PMDC motors will require!!!!!

Thanks in advance for a reply!

 

[Qmavam]

Hello forum members,

I am deciding whether a diode/capacitor CW circuit,or a step-up power hand-wound step-up transformer is easier,
I basically want to know which "vm" circuits that the members have used with good results, and what circuit is more efficient/practical??

How much current do you want your circuit to deliver?
For a decent amount of current and efficiency a boost converter
would be a better way to go.
I have no idea if the T200 toroid is the big enough or if it is the right material.
Here are some links to boost converters.

http://en.wikipedia.org/wiki/Boost_converter

Here's a actual circuit, it's not for high current, but does give
you an idea how the circuit is put together.

http://www.elecfree.com/electronic/simple-12-180v-boost-converter-using-the-555-as-controller/

http://www.daycounter.com/LabBook/BoostConverter/Boost-Converter-Equations.phtml

This project is not as trivial as it may seem especially if the current is high.
I would be asking questions on the newsgroup sci.electronics.design
You will find ton's of information on the net about these circuits.
Linear Technologies has a lot of chips made for voltage converters.
Good luck, Mike