I need to supply 4 MSD ignition coils with a square wave (normally unipolar) sine, triangle wave at 5v and amplify that signal up to say... 20A MAX.
Usually people use one or two darlingtons and the power is not sufficient.
I used 8 MJ11033's in parallel, which was sufficient, but I apparently didn't bias them right and they all burned eventually.
So what I'd like to do is just take advantage of the many amp boards offered on ebay such as http://www.ebay.com/itm/600W-High-power-Class-D-amplifier-switching-power-supply-board-DC-58V-/131947454104?hash=item1eb8ae5e98:g:HEIAAOSwwo1XeTiH.
Is there any reason this wouldn't work?
- One problem might be(?) that I want to use a square wave, will the dc filtering remove this?
- Does uni vs bipolar square make a difference?
There's too many types of amplifiers out there; here's the basic idea
Thanks for the reply. Yeah that's all there is really to these, usually. If it helps here's a link to the coil specs I'm using- https://www.summitracing.com/int/parts/msd-5527/overview/make/ford/model/mustang , 4 in parallel, and an 8" phanotron plasma tube, I will be using one switchable vintage spark "tube" instead of the spark plugs. I just want to replace the darlington section with something that an engineer actually built. Will use any power supply that's required for the amp stage, not the transformers/rectifiers Again, the 8 MJ11032's in parallel that I tried were fine, they just didn't last. Hope that helps a little, and thanks again.