How do I build a 5V regulated power supply?

Step by step method to design 5V DC power supply

1. Step 1: The selection of regulator IC.
2. Step 2: The selection of transformer.
3. Step 3: The selection of diodes for the bridge.
4. Step 4: The Selection of smoothing capacitor and calculations.
5. Step 5: Making the power supply safe.

How do you make a 5V DC power supply without a transformer?

this is very simple. The circuit which consists one series resistor Capacitor (dropper Capacitor), one resistor is connected in parallel with the capacitor, then I use a Bridge Rectifier, Filter Capacitor, regulator unit, and the last unit is a LOAD which is a LED in series with a current limiting resistor.

What is a 5V voltage regulator?

This is the basic L7805 voltage regulator, a three-terminal positive regulator with a 5V fixed output voltage. This fixed regulator provides a local regulation, internal current limiting, thermal shut-down control, and safe area protection for your project.

How do you regulate amps in a circuit?

In order to lower the amperage of an electrical circuit, you must either lower the circuit’s voltage or increase its resistance. Lowering amperage is done by applying Ohm’s law, given by the formula I = V/R, where I is the circuit’s total current in amperes, V is the voltage and R is the resistance.

What is the output current of the lt1038 regulator?

By this Regulator, circuit Output Load Can be connected up to 10 A Load. The output current is 10 A of this circuit. The LT1038 is a three-terminal adjustable voltage regulator which is capable of providing of 10A output high current at 1.2V to 32V range.

What is the current of a lm338 variable DC voltage regulator?

If you want to a LM338 variable dc voltage power supply circuit during 1.2V to 30Vdc and can provide a current maximum to 5A. LM338 Datasheet. The LM138/LM238/LM338 are adjustable 3-terminal positive voltage regulators capable of supplying in excess of 5A over a 1.2V to 32V output range.

What is the output current of a constant current regulator?

This is a simple constant current regulator. It will limit the output current by adjusting R1. The current will get a constant current of 5A. We use only one resistor to control the output current. The output current = Vref / R1. R1 = 0.24 ohms at 2 watts.