What is the difference between positive and negative voltage?

The magnitude of a voltage can be either positive or negative. If the voltage magnitude is positive, the voltage has the same polarity as shown on the diagram. If the voltage magnitude is negative, the voltage polarity is the opposite to that shown on the diagram.

What is a positive voltage regulator?

The 78xx line are positive voltage regulators: they produce a voltage that is positive relative to a common ground. 78xx and 79xx ICs can be used in combination to provide positive and negative supply voltages in the same circuit.

What are the three terminals of an adjustable voltage regulator?

There is one input, one output and one adjustable terminal. The external fixed resistor R1 and variable resistor R2 provide the output voltage adjustment. The output voltage can be varied from 1.2V to 37V depending upon the resistor values.

What is the difference between positive and negative electrical difference?

Electric charge can be positive or negative (commonly carried by protons and electrons respectively). If there are more electrons than protons in a piece of matter, it will have a negative charge, if there are fewer it will have a positive charge, and if there are equal numbers it will be neutral.

Are positive and negative the same?

A number is positive if it is greater than zero. A number is negative if it is less than zero. A number is non-negative if it is greater than or equal to zero. A number is non-positive if it is less than or equal to zero.

What is the difference between positive voltage regulator and negative voltage regulator?

A positive adjustable voltage regulator produces a regulated positive voltage that can be adjusted. Most regulators are fixed (not adjustable). A negative adjustable voltage regulator produces a regulated negative voltage that can be adjusted.

What is adjustable regulator?

An Adjustable Voltage Regulator is a regulator that can output adjustable voltages from anywhere in the range that the voltage regulator is designed to output. A LM317 voltage regulator, for example, can be made to output any voltages from +1.2V-37V. This is the advantage of adjustable voltage regulators.

What is difference between fixed voltage regulator and adjustable voltage regulator?

Adjustable Voltage regulators require a very few external components to achieve its operation. Fixed voltage regulators require almost no external components (may be a couple of bypass capacitors). At low cost you have a wide range of voltage and current selection.

What is adjustable voltage regulator?

Which is the 3 terminal negative voltage regulator IC?

IC 79xx is a three-pin negative voltage controller IC. It is a small integrated circuit used in a circuit to supply a constant negative input voltage.

What is the function of IC 723?

The 723 voltage regulator is commonly used for series voltage regulator applications. It can be used as both positive and negative voltage regulator. It has an ability to provide up to 150 mA of current to the load, but this can be increased more than 10A by using power transistors.