In this DIY, we are making a simple voltage regulator using 2N3055. A voltage regulator is an electronic device that is used to regulate voltage levels. When a steady, dependable voltage is required, at that point a voltage regulator is a preferred device. Moreover, it generates a fixed output voltage that remains steady for any changes in input voltage or load conditions. It likewise acts as a buffer for shielding parts from harm. Furthermore, probably over 90% of items require a voltage regulator or something to that effect, making them one of the most ordinarily used electrical parts. Additionally, if you’re able to run everything directly, an external AC/DC adapter voltage or a voltage regulator is required.
Hardware Components
The following components are required to make a Voltage Regulator Circuit
| S.no | Components | Value | Qty |
|---|---|---|---|
| 1. | Transistor | 2N3055 | 1 |
| 2. | Variable Resistor | 5k | 1 |
| 3. | Alligator clips with wires | – | 3 |
| 4. | LED Strips (with 4 LEDs each) | – | 3 |
| 5. | Battery | 12V | 1 |
2N3055 Pinout
For a detailed description of pinout, dimension features, and specifications download the datasheet of 2N3055
Circuit Construction
Step# 01
First, connect the variable resistor to the transistor.
Step# 02
Then connect the alligator clip to the transistor.
Step# 03
Then connect the LED strips to the transistor.
Step# 04
Then connect the 12V supply, one end with the transistor, and another end with LED Strips.
Working Explanation
In this section, we are discussing about the operation of the Simple Voltage Regulator Circuit in detail. However, this circuit requires a few low-cost components which are easily available in the electronic markets. Therefore, we are using transistor 2N3055 which is the silicon NPN power transistor intended for general purpose applications, and a 5K variable resistor for adjusting the resistance value. Make this circuit by using the following steps then test the circuit by using the LED strips or multimeter.
Applications and Uses
The applications and uses of the voltage regulator are:
- It is used for electronic circuits to supply an exact amount of voltage and prevent it from being damaged.
- It is also used with the alternator of an internal combustion engine to regulate the alternator output.
