How do I reduce 12V to 9V?
To reduce a 12V circuit to 9V, place two resistors in series within the circuit. Find the difference between the two voltages (12V – 9V = 3V) to determine the total amount of resistance needed.
Can I run a 9V device on 12V?
You can’t use a 12V adapter to power a 9V guitar pedal. A pedal that only handles 9V can be destroyed by using a 12V adapter. It’s possible for a power supply to ruin your pedal even if you get the voltage right.
What voltage should a 12V car battery be?
about 12.6 to 12.8 volts
A fully charged battery will typically display a voltmeter reading of about 12.6 to 12.8 volts. If your voltmeter is showing a voltage anywhere between 12.4 and 12.8, that means your battery is in good shape. Any voltage above 12.9 volts is a good indicator that your battery has excessive voltage.
What happens if you put a 12V into a 9V?
What resistor do I need to drop 12V to 3V?
Our task is to stepdown 12v into 3v. so, we are going to use 1k ohm resistor and 330-ohm resistor. Connect one end of 1K ohm resistor to 12v supply and second to any other hole of breadboard.
Is there a 12V to 9V DC converter?
A 12v to 9v dc converter can also be made with a versatile IC LM317 linear voltage regulator. It is useful for medium to high current circuits (1 Ampere to 1.5 ampere+) with the proper heatsink. Generally, LM317 is found at variable power supply circuits that give regulated voltage (1.25V to 37V) on changing the voltage on pin no.1.
Which is the best 12V to 9V circuit?
These circuits can also be used to step down or reduce 12v battery potential to 9v so as to use it with microcontroller modules or any IC’s. Here we mainly use reliable linear power converters like LM7809 and LM317. LM7809 is a fixed voltage regulator IC that reduces and regulates the input voltage in electrical circuits.
What does a voltage of 12.2v mean?
If the voltage is below 12.6v it indicates that the battery isnt fully charged or has a fault. The voltage doesn’t have to differ much from 12.6v for it to indicate a discharged battery. At 12.2v the battery is in effect 50% discharged.
What is a 12V to 9V voltage regulator?
LM7809 is a fixed voltage regulator IC that reduces and regulates the input voltage in electrical circuits. A voltage regulator 12v to 9v converter with IC LM7809 is implemented as shown in the schematic diagram below. It can be used for low current application as well as for the current up to 2 Amperes or more.