Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW
Wow, I must have missed a New Product Friday post; that is a very handy gadget! A bit expensive at $20 USD but if it it doesn't break, its going to be very handy. I also liked their spark gap igniter
https://www.sparkfun.com/products/11218
but this looks more practical.
Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW
What would be needed if your bot ran on a much higher voltage? Would a dropping resistor be enough, or would a proper regulator be required? Would a small hacked brushless controller be a good solution to PWM a higher voltage to drive the igniter?
Fri May 31, 2013 9:43 pm
Valen Experienced Roboteer
Joined: 07 Jul 2004
Posts: 4436
Location: Sydney
12v at 1.7-2.4A so some sort of regulator would be required I think.
a little cheap 12v switch mode regulator would be the way to go I think.
sparkfun have a new product RSS, that's where i saw that.
spark gap igniters are bound to cause electrical issues without taking some care ;->
though at least the 2.4Ghz stuff we use these days should hopefully be more robust. _________________ Mechanical engineers build weapons, civil engineers build targets
Sat Jun 01, 2013 12:17 pm
Daniel Experienced Roboteer
Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast
Re: flame thrower igniter
quote:Originally posted by Valen:
https://www.sparkfun.com/products/11694
now this looks like the stuff.
Would I be able to run one of these off 14.4V or would that need a regulator?
Tue Jun 18, 2013 8:18 pm
Nick Experienced Roboteer
Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW
Its a resistance heater, so an extra 2.4 V will likely make it hotter and shorten it's lifespan quite a bit. The maximum current @ 12V is 2.4A, so you could just add a 1 ohm, 10W dropping resistor to get *about* the right voltage across the igniter. A switching regulator would do a better job but at a higher price.
Tue Jun 18, 2013 9:01 pm
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