# What is a negative voltage regulator?

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## Can you get negative voltage from a voltage regulator?

A negative linear regulator for generating a negative voltage. If a negative linear regulator, like the one shown in Figure 2, is being used, the generated –3.3 V is being regulated in relation to the 0 V ground voltage. This yields a very low noise and accurate output voltage.

## What is negative voltage used for?

There are chances that thundering can cause positive voltage in the equipment circuit. Since negative voltage has a lack of electrons, it can neutralize the positive charge that can avoid producing heat.

## Is an example for fixed negative voltage regulator?

​Fixed-Negative Voltage Regulator:

The series 79XX regulators are the three-terminal IC regulators that provide a fixed negative output voltage. This series has the same features and characteristics as the series 78XX regulators except for the pin numbers which are different.

## What does negative 12 volts mean?

When we say that something has a potential of a specific value (-12 volts in your question), this is RELATIVE to the potential of something taken as a reference– usually, the earth– “ground“. So– if we take a 12-volt battery and ground the negative terminal, the positive terminal is at a potential of +12 volts.

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## Can a battery have a negative voltage?

If the poles of your voltmeter are correctly connected, there is a possibility that the battery suffered a phenomenon called “polarity reversal”. … In this case there is the possibility that battery B will get a negative voltage. This can happen when there is a mixed use of old and new batteries together.

## Is negative voltage the same as ground?

The power supply provides a positive voltage, a negative voltage, and a ground. The two voltages are usually approximately equal (but opposite) so the ground is nearly exactly in between them.

## Why do we need negative power supply?

Their, “advantage” is that, if you need a negative voltage, a negative power supply can do that better than a positive power supply. Negative supplies are better for monster power valves (tubes) who’s anode (plate) is a dirty great block of copper that has to be bolted to something and/or water cooled.

## What does it mean if current is negative?

Negative current is current flowing in the opposite direction to positive current, just like the axes on a graph have negative and positiva in opposite directions.

## Can voltage be negative or current?

Note that these are only the reference directions, and the resulting voltage or current might be negative, which simply means that the terminal you labeled as positive is really at a lower voltage than the terminal you labeled as negative (negative voltage), or the current is flowing the opposite direction as your …