Can you regulate DC voltage?

With an unregulated DC power supply, the voltage output varies with the size of the load. It typically consists of a rectifier and capacitor smoothing, but no regulation to steady the voltage.

What is adjustable voltage regulator?

An adjustable voltage regulator produces a DC output voltage, which can be adjusted to any other value of certain voltage range. Hence, adjustable voltage regulator is also called as a variable voltage regulator. The DC output voltage value of an adjustable voltage regulator can be either positive or negative.

How does an adjustable voltage regulator work?

An adjustable voltage regulator is a regulator that can be adjusted to output any voltage from the range that the voltage regulator is designed to output. A LM317T voltage regulator, which is what we are going to use in this setup, can be adjusted to output from +1.2V to 37V.

How do you make a variable DC power supply?

To make Variable DC power supply, you will required following list of components;

  1. Transformer 220V to 30V ,2A rating.
  2. Diodes.
  3. High capacitance capacitor (1800uF)
  4. Small capacitors for IC.
  5. IC LM317.
  6. Resistors of 500 ohms.
  7. 1.5A fuse.
  8. Probes .

How do you limit voltage in a DC circuit?

To reduce voltage in half, we simply form a voltage divider circuit between 2 resistors of equal value (for example, 2 10KΩ) resistors. To divide voltage in half, all you must do is place any 2 resistors of equal value in series and then place a jumper wire in between the resistors.

How do you limit current in a DC circuit?

Current limiting components

  1. Fuse and Resistors. These are used for simple limiting of current.
  2. Circuit Breakers. Circuit breakers are used to cut off power just like the fuse, but their response is slower and might not effective for sensitive circuits.
  3. Thermistors.
  4. Transistors and Diodes.
  5. Current limiting diodes.

What is DC voltage regulator?

A DC Voltage Regulator is a device which maintains the output voltage of an ordinary power supply constant irrespective of load variations or changes in input a.c. voltage . Generally, electronic circuits using tubes or transistors require a source of d.c. power.

What is difference between fixed 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.