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How do you get a 4.5 V from a 9-volt battery?

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How do you get a 4.5 V from a 9-volt battery?

Making a 4.5 Volt Battery Pack From a 9V Battery

  1. Step 1: Dismantle Your 9V Battery. This is your chance to be destructive.
  2. Step 2: Separate 3 Batteries and Tape Them Up. Next you want to seperate a set of 3 batteries, ensuring that they stay connected to each other.
  3. Step 3: Add 2 Leads.
  4. Step 4: Tape the Whole Thing Up.

How do you reduce 9V to 3v?

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.

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Can you use a 9V adapter for 7.5 V?

However if the device is relying on the regulated voltage from the adaptor and has no internal circuit to control or limit overvoltage, then that 9v adapter may damage your device. That said, there are 7.5v devices designed with tolerances wide enough that the 9v you provide it won’t make any difference at all.

Can I use 9V battery for 5V?

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 the 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 you drop voltage from 9V to 5V?

How do I get 5V from 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.

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Can I use a 9.5 V for 9V?

Can you use a 9.5 volt charger to charge a 9 volt battery? You may be able to keep it topped up if it is rechargeable, but no. Fine, you need a slightly greater voltage than battery’s nominal voltage to fully charge it. Usually 10\% or 0.9V in the present case would be better, but anyway 9.5 V is OK.