Originally Answered: Which resistor is used to reduce 9v to 3v, to connect a motor? Here if you use resistor for reducing the voltage level it cause problems. So, you can use 1117 3.3v fixed three terminal Regulator.
What resistor drops 9V to 3v?
One option is a 330-ohm resistor. Using Ohm’s Law, the maximum zener current I is (Vin – Vout)/R = (9 V – 3.3 V)/330 ohm = . 0172 A = 17 mA.
What resistor drops 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 do you convert 9V DC to 3v DC?
Get a 3 pin voltage regulator that puts out 3v. It will handle 0 to whatever the max current of the regulator is. Done. If you are looking for easy and the current draw is in a small range, then you could make a regulator with a zener diode and resistor.
What resistor do I need to drop 12v to 3v?
take a 12v 4ohms potentiometer where the pointer will be adjusted at 3 ohms so that the voltage at last 1 ohm will be 3v. use a resistor in series with a 3 V zener diode to ground.
What resistor do I need to drop 5V to 3V?
The simplest possible step-down circuit is a resistive divider. Drive your 5V output into a chain of resistors, from which you tap your 3.3V logic input. A chain consisting of a 2.2k and a 3.3k resistor should produce a 3V output from an applied 5V input.
What resistor do I need for LED 9V?
290 ohms
LEDs typically require 10 to 20mA, the datasheet for the LED will detail this along with the forward voltage drop. For example an ultra bright blue LED with a 9V battery has a forward voltage of 3.2V and typical current of 20mA. So the resistor needs to be 290 ohms or as close as is available.
Will 9V work 5V?
No! It might work for few minutes, but eventually the voltage drop on the internal regulator will cause the circuit to overheat and burn.
Is 9V battery good for Arduino?
The recommended range is 7 to 12 volts.” I’ve found that using 9V works well. You can simply connect the + end of your battery to Arduino Vin and the – end to Arduino ground (fig 1).It’s also a good idea to attach a toggle switch in series with this battery so that you can turn your Arduino off and on.
What resistor do I need to drop 6V to 3V?
from a 50amp supply at 5 volts you’d need a dropping resistor to drop 6–3 =3 volts at 50amps. You’d need a resistor of (R=V/I) – 3/50=0.06 ohms, not an easy value to get or make.
What resistor do I need to drop 12v to 5V?
12v to 5v converter using a voltage divider:
Components required: One 12v battery, 1.8k resistor, 1.3k resistor, connecting wires.
How do I reduce 5V to 3.3 V?
Method #1 – Voltage Divider
A voltage divider is a simple circuit which reduces a large voltage into a smaller one. Solving the formula above with Vin=5V, R1=1000ohms and Vout=3.3V.
How do you reduce a resistor from 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.
What resistor do I need for 3V LED?
Basics: Picking Resistors for LEDs
| Power Supply Voltage | LED Color | Resistor (calculated) |
|---|---|---|
| 3 V | Red, Yellow, or Yellow-Green | 48 Ω |
| 4.5 V | Red, Yellow, or Yellow-Green | 36 Ω |
| 4.5 V | Blue, Green, White, or UV | 48 Ω |
| 5 V | Blue, Green, White, or UV | 68 Ω |
How do I amplify 3V to 5V?
The main ways to interface a 3.3V output to a 5V input are:
- Direct connection.
- Using a 74HCTxx gate (or other 5-V TTL-input compatible families)
- Using a diode offset.
- Resistor Offset.
- BJT/MOSFET inverter.
- Series MOSFET.
- Series BJT.
- Level Translator IC.
How do you drop voltage from 5V to 3V?
You can use a pot (potentiometer), a Zener diode, a combination of s transistor and diode, or a combination of resistors of appropriate values to reduce voltage from 5 V to 3 V.
How do I get 3.3 V?
You can buy a couple of diodes and connect them in series to get the 3.3V from 5V. Every diode will have some voltage drop. you have to choose them accordingly so that the voltage drops add up to the 1.7V (5 -3.3 = 1.7V). This method can give you around 3.3V.
Which appliance is used to step down DC voltage?
transformer
Justify your answer. A transformer is used to step down a.c. voltage.
How do you lower voltage?
The simplest way to reduce voltage drop is to increase the diameter of the conductor between the source and the load, which lowers the overall resistance. In power distribution systems, a given amount of power can be transmitted with less voltage drop if a higher voltage is used.
How do I step down 24Vdc to 12Vdc?
We often get asked “How do you reduce 24Vdc to 12Vdc” and the answer is pretty easy – you use a DC to DC converter which has a 24Vdc (nominal) input with a regulated 12Vdc output. If you have a requirement for converting any DC voltage to any other DC voltage then please do get in touch!
Will a 12V LED run on a 9V?
6. Can I Power a 12V Strip With a 9V Battery? The answer is “Yes”. A 12V strip can run on a power supply a little lower than its required electrical voltage, like a 9V alkaline battery.
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