Table of Contents
How do I know what resistor to use?
A rule of thumb is to find a resistor with twice the power rating. Here I would choose a 250 mW resistor since those are the most standard ones. Usually, you can just use the cheapest resistor you can find with the correct power rating.
How do you reduce a 12V to 6V with a resistor?
It’s possible to step 12 volts down to 6 volts by incorporating a pair of 10,000-ohm resistors into the circuit. Cut two lengths of wire, and strip each wire of 1/2 inch of insulation at each end. Attach one end of the first wire to the positive terminal on the power supply.
What resistor do I need to drop 9V to 5v?
9v to 5v converter using a voltage divider: Components required: One 9v battery, 1.5k resistor, 1.2k resistor, some multicolor connecting wires. It is a simple voltage divider configuration.
How to reduce voltage with resistors?
With resistors, we can form a voltage divider circuit, so that we can obtain any voltage we want. To know how to reduce voltage, you simply just have to understand how the math works for voltage divider circuits, and we will go over this below. Through this technique, you can take any voltage and lower it to any level you want.
How to reduce voltage in half in a circuit?
To reduce voltage in half, we simply form a voltage divider circuit between 2 resistors of equal value (for example, 2 10KΩ) resistors.
How can I reduce DC voltage from a battery?
If these conditions are satisfied you can reduce DC voltage by (high power aluminium) resistors [>50 watt] Your battery is enough to supply at least 20x (or much more) current for your load. Power loss is not a problem. (Over)Heating is not a problem or having good cooling mechanism for resistors.
How to step down 12V battery potential to 9V?
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.