What is a simple uninterruptible power supply?

This article discusses a simple uninterruptible power supply that can come in handy in various situations. The design contains a rechargeable Li-Ion battery, battery protection and charging circuitry, and a 12V step-up module. It features two 12V outputs and a standard full-size USB port for charging all sorts of mobile devices.

Can I use a battery if I'm using a power supply?

When powering it on for the first time, use a power supply if you have one. Limit the current to 3A. This will keep everything from blowing up if something was connected wrong. Once everything is working using the power supply, you can use the battery. I would highly recommend adding a switch in-between your battery and the circuit.

What does a power supply do?

A power supply is responsible for providing a circuit with all the power it will need during normal operation. It provides the circuit with a certain voltage and current. The best way to think of this would be to imagine a hose with water running through it.

What is a dual power supply from a single battery?

The power supply can be single or dual. A single supply creates only one voltage, but a dual supply produces two voltages, one positive and one negative. This article focuses on the dual power supply in particular. So we have decided that in this tutorial, we are going to make a “Dual Power supply from a single battery”.

What are the components of a basic power supply circuit?

A basic power supply circuit will fundamentally require three main components for providing the intended results. A transformer, a diode and a capacitor.The transformer is the device which has two sets of windings, one primary and the other one is the secondary.

How do you connect a backup battery to a power supply?

We connect the Backup battery 7.5V (AA 1.5Vx5) with D2 in series, and both across the output terminal. The voltage drop across D2 serves to reduce the voltage level of the power supply down to about 7V (6.8V). Also: 8 ways how to converts 12V to 6V Small Uninterruptible Power Supply UPS Circuit When use this with the AC main.