WHUT you taklin' 'bout . . . . . . . . . . Willis ?
Whut you gonna do . . . . . .wire this up to a "tater " eye incubator ?
Notice that it has 2 drain connections ∴ you could change out the cooling oil in a HURRY on that sucker !
73's de Edd
My wife and I always compromise . . . How? . . . “I admit I am wrong and she agrees with me!”
Do you think it's sketchy to connect my PSU ground to earth for this? The PSU will be a PC PSU and used to power a few other pieces of equipment (network switch, Raspberry Pis, label printer). Originally I was advised to use a "high side" circuit but they're too sensitive and light the LED even when the connection to ground is poor.
The ESD grounding point is usually connected to earth potential using a resistor in the MΩ range. The explanation is e.g. here.
The circuit in your link may be suitable when you replace the NPN by a MOSFET. You'll have to add a resistor from gate to source to reduce sensitivity to small charges (as you have noticed). Also a series resistor and a zener diode to protect the gate from overvoltage are advisable. Hre's a rough sketch:
WHUT you taklin' 'bout . . . . . . . . . . Willis ?
Whut you gonna do . . . . . .wire this up to a "tater " eye incubator ?
Notice that it has 2 drain connections ∴ you could change out the cooling oil in a HURRY on that sucker ! View attachment 45163
73's de Edd
My wife and I always compromise . . . How? . . . “I admit I am wrong and she agrees with me!”