self stopping boost converter

spike, Tue Mar 07 2006, 06:57PM

Hi guys,

I made a poor version of this coilgun :
Link2

I stop the boost converter charging the capacitors with a switch when voltages reaches 60V at my multimeter, but i'd like a self stopping boost converter, for example a relay wich cuts off the boost converter-capacitors link when voltage is around 60 or 70V (my capacitors are 80v ones)with per example a zener diode.

But I can't design by myself such a circuit.
Could anybody design one for me ?

Best Regards

Spike

PS :
Here is the schematic of the boost converter for those who want to see :
Link2

PPS : excuse me, my english is pretty bad ....... kinda normal for a frenchie cheesey
Re: self stopping boost converter
Bjørn, Tue Mar 07 2006, 07:18PM

No one is going to design it for you and you break one of the rules by asking. We can help you design the circuit but you have to make an effort yourself.
Re: self stopping boost converter
Pete, Tue Mar 07 2006, 11:12PM

If you are a new member then the old 4HV is a plethora of information for you.

3 places to look first. :) Google, old.4hv.org, and the HvWiki. This was on the old HV board:

Boost Converter as a Bank Charger

I definetly feel this one should be in the Wiki as a resource...

Pete

[Edit: Fixed broken link, testing the links after posting is always a good idea.]
Re: self stopping boost converter
Maz, Wed Mar 08 2006, 03:54AM

find the datasheet on it. if it and print it out for reference. then google the part number with the word tutorial afterwards. someone out there might just love you.