I have...
-PC power supply with Gnd, 3.3, -5, +5, -12 and +12
-Digital Oscilloscope Owon SDS6062 60Mhz 500Ms/s
-Lodestar Function generator 0.2 - 2Mhz FG-2102AD
I want to understand ground safety and grounding setups. What grounding is. What is isolation. What is safe. What is not safe. Why my scope do I not need my scope ground because its already connected somehow (with PC power supply).
I am trying to watch a capacitor on the oscilloscope charge and discharge. I can do this successfully with batteries. But I CANNOT using the power supply. I believe this is because the ground is somehow connected.
With 5v batteries and a 1 second time constant. I can clearly watch the oscilloscope screen and see the capacitor charge with a logarithmic curve at about 5 seconds
With the power supply 5 volts when I connect the positive the scope immediately jumps to full 5 volts and if I disconnect the positive from the power supply it immediately shows the voltage at the caps potential difference.
The batteries allow me to see the logarithmic charging curve. The power supply doesn't.
Can you help me understand what is going on and how to set up my bench.
about me. I am a hard core home study and I take notes. I am studying physics trig and grogs basic electronic book and taking great notes. It is not a matter of lazyness that I do not understand. It is a matter of not knowing how to learn about grounding my home electronics project bench.
thanks.
-PC power supply with Gnd, 3.3, -5, +5, -12 and +12
-Digital Oscilloscope Owon SDS6062 60Mhz 500Ms/s
-Lodestar Function generator 0.2 - 2Mhz FG-2102AD
I want to understand ground safety and grounding setups. What grounding is. What is isolation. What is safe. What is not safe. Why my scope do I not need my scope ground because its already connected somehow (with PC power supply).
I am trying to watch a capacitor on the oscilloscope charge and discharge. I can do this successfully with batteries. But I CANNOT using the power supply. I believe this is because the ground is somehow connected.
With 5v batteries and a 1 second time constant. I can clearly watch the oscilloscope screen and see the capacitor charge with a logarithmic curve at about 5 seconds
With the power supply 5 volts when I connect the positive the scope immediately jumps to full 5 volts and if I disconnect the positive from the power supply it immediately shows the voltage at the caps potential difference.
The batteries allow me to see the logarithmic charging curve. The power supply doesn't.
Can you help me understand what is going on and how to set up my bench.
about me. I am a hard core home study and I take notes. I am studying physics trig and grogs basic electronic book and taking great notes. It is not a matter of lazyness that I do not understand. It is a matter of not knowing how to learn about grounding my home electronics project bench.
thanks.