Where do I connect GND?

Where do I connect GND?

If you require a positive voltage supply, you connect the negative terminal to ground. If you require a negative voltage supply, you connect the positive terminal to ground. If you require a floating supply, you connect neither terminal to ground. You never connect both terminals to ground.

What does GND mean in a circuit?

What Does Ground (GND) Mean? Ground, in the context of electronics, is the reference point for all signals or a common path in an electrical circuit where all of the voltages can be measured from. This is also called the common drain since the voltage measurement along it is zero.

Can I connect common to ground?

No, the neutral and ground should never be wired together. This is wrong, and potentially dangerous. When you plug in something in the outlet, the neutral will be live, as it closes the circuit. If the ground is wired to the neutral, the ground of the applicance will also be live.

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Is it necessary to connect GND and ground wire together?

However, if both ground are connected, voltages sources with have the same reference, and so be coherent to each other. Please mind you have to connect grounds with little resistance. So yes, most of the time you have to connect GND together.

Do I need to connect the two grounds of a circuit?

You have to connect them, otherwise your circuit will most probably not work. If you do not connect both grounds, the voltage between these two grounds is somewhat random (determined by surrounding air, environment,…) and your signals might not be what you intended. The best method is to connect the two grounds at exactly one point.

Is it safe to touch the ground on a circuit?

When you make sure at least one side of your circuit is common to earth ground, it presents no shock hazard for a person touching ground. Ground is a neutral 0-volt line. The other type of ground is floating, or virtual, ground. This ground is not directly connected to the earth, and, thus, floating.

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What is the purpose of the ground wire in a circuit?

Because it has a direct connection with earth ground, it is only to sink electricity to the earth, giving less risk of a fire. Ground serves as a safety measure in circuits that are hooked up to earth ground.