12V to 9V Converter Circuit - Simple Electronic Project
Introduction
content
content
content
Diagram of 9V Power Supply Circuit
Advertisements
Advertisements
Components Needed for this Project:
You can get the components from any of the sites below:
- BC547 Transistor [See Buy Click Amazon]
- 2.7k Ohm Resistor [See Buy Click Amazon]
- 10k Ohm Resistor [See Buy Click Amazon]
*Please note: These are affiliate links. I may make a commission if you buy the components through these links. I would appreciate your support in this way!
Related Basic Electronic Mini Project Circuit Diagram:
Advertisements
Advertisements
Working Principle
content
content
content
Frequently asked questions
Connect 18v +ve voltage to 7809 input pin and -ve to 7809 GND pin. You will get the output of 5v at the output pin. You can also give 18v or 12v as input voltage.
In this video, I made a 12v to 9v Regulator using LM317. This Circuit is Easy to make. You can build a resistor divider. You can get a linear voltage regulator and build a power supply around it. You can use a Zener diode.
Our task is to step down 12v into 9v. so, we are going to use a 1k ohm resistor and a 330-ohm resistor. Connect one end of the 1K ohm resistor to the 12v supply and the second to any other hole of the breadboard.
You can use resistors in the ratio of the voltage on the Resistor 22 will be 9V approx. This method will only be useful if you want to sense the presence of a 24V voltage supply.
A 9V LED must not be run on 12V. But there are lots of options to convert 12V to 9V power supply. As Jason Vaughan notes, a USB charger intended for a car will do a good job - unless you need a lot of power supply.
Related Articles
How To Make High Power DC-DC Booster Circuit | Buck-Boost Converter
Introduction content content contentDiagram of Buck-Boost Converter Circuit diagramComponents Needed for this...
DC Motor Control Circuit | Simple DC Motor Speed Controller Circuits
Introduction content content contentDiagram of DC Motor Speed Controller Circuit diagramComponents Needed for...
Battery Low Voltage Protection | over-voltage protection
Introduction content content contentDiagram of Over-voltage Protection Circuit diagramComponents Needed for...