Hi.
I've been asked by my tattoist if i could build him a Variable PSU for his various Coil tattoo machines. I'm out of my depth really. So thought I'd ask here in case anyone could point me in the right direction. Today i tried a couple of LM317 type variable circuits, which were ok. The transistor got incredibly hot very fast which made me think I'm missunderstanding what circuit I will need (i hadn't attached a heatsink to the transistor).
My electronics experience is mainly building audio equipment, synths etc... and some motor contol circuits. This has all been Analogue.
The reason my tattooist asked is because he's had various digital PSU's that eventually fail on him. His requirements thus far have been for it to be variable, stable and for it to have a visual representation of what voltage it is runnning at. I was surprised i couldn't find schametics on the internet, which is why i'm here asking.
Thanks in Advance
Darren
I've been asked by my tattoist if i could build him a Variable PSU for his various Coil tattoo machines. I'm out of my depth really. So thought I'd ask here in case anyone could point me in the right direction. Today i tried a couple of LM317 type variable circuits, which were ok. The transistor got incredibly hot very fast which made me think I'm missunderstanding what circuit I will need (i hadn't attached a heatsink to the transistor).
My electronics experience is mainly building audio equipment, synths etc... and some motor contol circuits. This has all been Analogue.
The reason my tattooist asked is because he's had various digital PSU's that eventually fail on him. His requirements thus far have been for it to be variable, stable and for it to have a visual representation of what voltage it is runnning at. I was surprised i couldn't find schametics on the internet, which is why i'm here asking.
Thanks in Advance
Darren