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Are ground (GND) same as -V know as Vee or Vss

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draggy

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Hello Expert and Professional,

May I know is ground (GND) same as -V know as Vee or Vss?

From my observation some DC power supply have +V , -V and GND (ground). On the other hand, other DC power supply just have +V and -V.

Thank you.
 

some DC power supply have +V , -V and GND (ground)
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These power supplies have (example) +12V, Gnd (0v) and -12v. This means it has +/- outputs which means one output is 12v above ground potential (0v) and the other 12v below ground potential (0v).
other DC power supply just have +V and -V
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These are ones that have only +ve and gnd reference. eg. Just 12v output with -ve pin which is actually ground.

Hope this helps.
Tahmid.
 

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