## Can I use 5V on 9V?

As long as the voltage is the same on the adapter and on the device (also, I have 9V DC and 9V AC adapters, do not mix these up) and be sure the current required is less than the amount that the adapter can source otherwise you risk overloading the power supply.

### What is 5V 2A or 9V 2A?

The “5V/2A or 9V/2A” output label indicates that the charger supports both 9V/2A fast charging and 5V/2A standard charging. You can also use the charger to charge other phones that support 5V/2A charging standards.

#### Can I use a 5V adapter to power a 4.5 V device?

They’re very stable on the output voltage and can kick out an amp or so. It’ll work fine.

How do I convert a 12V to 5V regulator?

12v to 5v converter using a voltage divider: You can run two LEDs in series across the resistor R2 while taking input from 12V lead-acid battery or a 12v adaptor as an input. Components required: One 12v battery, 1.8k resistor, 1.3k resistor, connecting wires. This circuit is a voltage divider schematic.

Can I charge a 9V battery with a 5V charger?

If you want to charge 9V from 5V power source you need to boost voltage from 5V to higher voltage level needed for charging purpose. Depending from battery chemistry and from choosed charging method you will determine charging voltage and charging current.

## How do I get 5V supply?

Step by step method to design 5V DC power supply

1. Step 1: The selection of regulator IC.
2. Step 2: The selection of transformer.
3. Step 3: The selection of diodes for the bridge.
4. Step 4: The Selection of smoothing capacitor and calculations.
5. Step 5: Making the power supply safe.

### 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 use a battery as a power supply?

There are situations where a battery charger may need to function as a power supply, as well as maintain batteries. This can be when designed into a UPS (Uninterruptible Power Supply), or when testing or operating a DC system powered by batteries.

What is a three phase voltage regulator?

A three-phase bank of voltage regulators used to control the voltage on long AC power distribution lines. This bank is mounted on a wooden pole structure. Each regulator weighs about 1200 kg and is rated 576 kVA.

Is there a dual voltage regulator?

There are three main classes or types of regulators: positive regulators where the incoming voltage is positive, negative regulators where the incoming voltage is negative, dual voltage regulators , which are sets of both, e.g., an op-amp circuit, and finally, adjustable regulators where any of the above may be present, but have a control knob to vary the output voltage on demand.

## How do you adjust a voltage regulator?

If the voltage, at which the reading becomes steady, occurs outside these limits, adjust the regulator by turning the adjusting screw 1/4 turn at a time clockwise to raise the voltage or counterclockwise to lower. The adjusting screw can be found on the back of the regulator facing the firewall.

### What does the voltage regulator do to the transmission?

In electrical engineering, particularly power engineering, voltage regulation is a measure of change in the voltage magnitude between the sending and receiving end of a component, such as a transmission or distribution line. Voltage regulation describes the ability of a system to provide near constant voltage over a wide range of load conditions.