Hello,

I'm making a high voltage power supply using a ZVS driver and a flyback transformer.
Should I connect one of the output cables of the flyback to the earth ground? Or should I have two HV leads coming out of my power supply?
I don't care whether the output is floating or mains earth referenced, I just want it to be safe.

Thanks in advance.

 

Why are you bothered about it being safe when it's High Voltage , if it's not being powered by mains voltage, it doesn't matter.

What is it being used for?

 

Why are you bothered about it being safe when it's High Voltage , if it's not being powered by mains voltage, it doesn't matter.

What is it being used for?

It's mains powered and I have the earth ground and the ground from my 50V transformer (after the rectifier bridge) both hooked to the metal casing. Should i connect the Flyback ground to the metal case too?

 

Probably, yes. At least that way you know where the output is with respect to ground and grounding the circuit will reduce the chance that the return (ground) to the power supply will float at some large AC voltage because of leakage.

Put another way, even if the circuit on the secondary of your transformer is isolated from the power line, there is still leakage that might cause an annoying shock, affect some delicate measurement, or even destroy a static sensitive component. Earthing (grounding) the second removes this risk.

 

Probably, yes. At least that way you know where the output is with respect to ground and grounding the circuit will reduce the chance that the return (ground) to the power supply will float at some large AC voltage because of leakage.

Put another way, even if the circuit on the secondary of your transformer is isolated from the power line, there is still leakage that might cause an annoying shock, affect some delicate measurement, or even destroy a static sensitive component. Earthing (grounding) the second removes this risk.

Thank you for your answer! I'll ground it and hope no weird things happen.