A 9v to 5v voltage regulator can be implemented with an LM7805 step-down voltage converter. It is used for (10mA to 1 Amp and more) medium to a high current application. The unique about this circuit is its ability to provide the same output current as applied at the input end.
How do I lower the voltage on a 9 volt battery?
To reduce a 9V battery to 3.3 volts, use a zener diode, such as a 1N746 or a 1N4728A. Choose the appropriate one based on how much power it can dissipate. A 1N4728A has a 3.3-volt and a 1 W power rating. It can supply, on average, a stable 3.3 volts to a circuit or another component.
Can I use 9V instead of 5V?
No. Some kinds of 5v devices might not blow up if you feed them 9v – but there are no guarantees – and I’d say your odds of NOT blowing them up are not looking good.
Can we connect 9V battery to 5V relay?
Yes. Probably. You need to find out the current that the relay coil needs when it is fed at 5 volts. Then you need a resistor that will drop, lose.
How do you reduce voltage from 12V to 5V?
If it ‘s asking how to get 5V power from a 12V source, then you want a voltage divider.
- If it is AC voltage then use Step Down Transformer of 5V.
- Using resistor. You have to do some simple calculations using Ohm’s Law.
- Best way is to use IC 7805 (for +5V) or 7905(for -5V). Output voltage will be almost exact 5V.
How do you lower the voltage of a battery?
Sometimes, your electronics project might just need a voltage source that’s lower than the battery voltage you have available. When this happens, you can reduce your battery’s voltage to any level you want by building a simple circuit called a voltage divider.
Can I charge a 9V battery with a 5V charger?
You would not be able to charge a 9V with a 5V source. You can still charge that battery till 5V but once you cross that current will start flowing from the battery back to the source.
Can I use a 9V adapter to power a 5v device?
In general, connecting a 9V supply to 5V device could damage it immediately, or in long term, but it is impossible to say without seeing the schematics of the device how much excess voltage it can handle. However, you are using USB devices, so the above does not apply.
How do you reduce 12 volts to 9 volts?
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.
Will a 12 volt LED work on 9 volts?
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.
Can you use a resistor to reduce voltage?
A resistor has the ability to reduce voltage and current when used in a circuit. The main function of a resistor is to limit current flow. Ohm’s law tells us that an increase in a resistors value will see a decrease in current. To reduce voltage, resistors are set up in a configuration known as ‘voltage divider’.
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.
Can I use diode to reduce voltage?
After each diode, the voltage can be seen to drop by 0.6 volts. In this way, diodes can be used to reduce voltage, in a circuit. Zener diodes allow electricity to flow through them, in the same way as normal diodes.
How do you reduce a 9v to 5V with a resistor?
9v to 5v converter using a voltage divider:
You can connect two LEDs in series across the output of R2 resistor if you are using a 9volt battery as an input. Components required: One 9v battery, 1.5k resistor, 1.2k resistor, some multicolor connecting wires. It is a simple voltage divider configuration.
How can you reduce voltage without current?
Balancing resistors can help with this. To reduce the voltage down to 6, there’s a number of possibilities, depending upon how precise the voltage needs to be. Voltage regulator(s) are the way to go here. Adjustable regulators that provide 6V at 3A are quite common, but you’ll need more components to set them up.
How do you drop voltage from 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.
Can you charge 9V batteries?
The 9V li-ion battery is made of two 3.6V cells lending it a nominal voltage of 8.4. To safely recharge it you need a voltage source of 8.4V.It will automatically stop the charging once each cell voltage reaches 4.2V and the battery is full. Next, this is how you charge a 9V NiMH battery with a 12V charger.
What happens if you put a 9V battery in salt water?
Salt water is much more conducive than regular water, so the battery would discharge more quickly and the current will break down the salt by electrolysis, producing hydrogen and chlorine gas.
Can I use a 9 volt adapter on a 6 volt device?
Yes you can! the thing is you need voltage regulator which converts 6V ,1.5 A to 9V , 0.6A, however this will drain battery faster it has many other reasons.
Can I use a 6V adapter for 5V?
If you’re mildly comfortable with electronic circuits, you could convert the 6V adapter to 5V. This can be done by hooking up the output of the adapter to a simple 5V linear regulator (the 7805) — the dropout would probably be low enough at 200mA to supply 5V.
Can I use 6V instead of 5V?
The short answer is No. A 5V, 2A adapter gives 10W of power and the 6V,1A gives only 6W.
Contents