Sounds like I may have to select some IRFD110 fets for low Vgs(th) though.
Which brings back memories, most of them not altogether happy...
Which brings back memories, most of them not altogether happy...
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Wot is this "nearly" of which you speak?Originally posted by BrilloPad View Post
Its nearly lunch time..............
I had mine an hour ago...
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Originally posted by zeitghost View PostNah.
The IRFD110 fets I was using weren't turned on (oooooer mrs) hard enough with 5V on the gate, giving about 2V or so Vds... much too high... much hotness...
Bunging a 1n4148 on the gnd lead of the 7805 regulator increased the rail voltage to 5.5V & lo! 23 out of 24 fets are turned on hard(er)... .48V (ish) Vds, so much less hotness...
I was worried for a bit there.
I've also created a monstrous raw DC psu for the lamps out of a 120W 12V toroidal and a couple of 70A diodes I found in my predeceased predessor's junk box.
A Cunning Plan seems (at the moment) to be coming together...
So when all the lights go out in Cardiff and the building vanishes up it's own fundament, we know who to blame
"Being nice costs nothing and sometimes gets you extra bacon" - Pondlife.Comment
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Yeah, Tesla...Originally posted by DaveB View Post
So when all the lights go out in Cardiff and the building vanishes up it's own fundament, we know who to blame
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I am now eating my lunch : was I purchased from Tescos.
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Dunno, have you checked your label? More importantly, did Mrs BP keep the reciept?Originally posted by BrilloPad View Post I am now eating my lunch : was I purchased from Tescos."Being nice costs nothing and sometimes gets you extra bacon" - Pondlife.Comment
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hello
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Afternoon chaps...
"I can put any old tat in my sig, put quotes around it and attribute to someone of whom I've heard, to make it sound true."
- Voltaire/Benjamin Franklin/Anne Frank...Comment
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I must do some w*rk
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