Confusing diode

124

01:21:45

 Diode bridge works but I'm insure why the path of ground matters.  The dc wave change due to the path of ground and I'm not sure why. I put in a switch with the ground icon to change paths easier  

published 7 years ago

kiani

7 years ago

The ground is only the groung of oscilloscope... EC measures everything with respect to ground.. So you can put it anywhere and cct. Will work.. Just your measurments will be affected

j5892000

7 years ago

Ah so the osc is measuring more accurately when the ground is connected to the 4ed

j5892000

7 years ago

Ah so the osc is measuring more accurately when the ground is connected to the 4ed

j5892000

7 years ago

So deoebd8ng on where the ground is hooked up to is where the is will measure from? I notice the wave near the red led when ground is hooked up to is a dc wave vs when the switch is flipped and the ground is measured after it goes through a second diod. Mayby my loop is confusing the system... or me

hurz

7 years ago

It doesn't matter were the ground is connected! All currents in your circuit are the same! Only the read of voltage values is different, cuz all voltages are referenced to ground as zero volt point in your circuit. The circuit function and current does NOT change!

kiani

7 years ago

Where did you go?! @ j588. is this ok?!

j5892000

7 years ago

Kiani I'm here. What's up? I'm still baffled. It's regelistering different info depending on the switch position.

kiani

7 years ago

Place a voltmeter directly across the LED. Then the position of switch makes no difference.

kiani

7 years ago

The voltmeter in the menue, marked V.

kiani

7 years ago

Ok. Look at this way... The oscilloscope of EC (every circuit) has iys ground probe permanently connected to ground... Now if you move the ground, the oscilloscope measures the voltages or currents with respect to ground ( EC ground),, when you flick the switch you are moveing the ground ( the negative of oscilloscope) to a diffrrent place,,, so you get different readings.... Where as using a voltmeter you can measure the voltage directly across the device,, irrespective of where the groung ( of oscilloscope is connected to. Is this clear now?!

kiani

7 years ago

Unbooking,,, good luck..

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