But sometimes loses power, it runs out of energy for working as a power outage. We need to use a UPS circuit UPS (Uninterruptible Power Supply) circuit Diagram diagram. Some call the emergency backup battery systems. It can be applied to many applications. When the power goes, the battery can provide backup power automatically.
In this tutorial, we are making a circuit of a 12V Battery Backup Power Supply. This circuit will automatically shift the load to the battery in the absence of the main supply. When the mains supply is back the load will shift to the mains supply and the battery will go into charging mode automatically.
Using Autodesk Circuits and a lead-acid battery, you can create a circuit that will act as a variable power supply, outputting a range of voltages from 5V to 20V. After creating the power supply you could drive motors using variable voltage, power microcontrollers, logic circuits, LED strings, analog circuits, and much more.
These simple and cheap 6-volt power supply circuits with a 6V backup battery system or 6V UPS circuit diagram. First, the AC power 220V is entered to through input of transformer-T1 to reduce voltage as 9VAC. Then, the wire connected to four diode D1-D4 as bridge rectifier became to 11VDC.
This build is made up of four subsystems. The first is the DC power supply from the battery pack, with the first filtering capacitor (leftmost C1 in the basic circuit) and a power switch (power subsystem diagram). The filtering capacitor does the job for all the regulator subsystems, so we only need it once.
It is portable and handy and can also functions as a Mobile Charger. Transformer less power supply is used in the circuit to charge the battery from mains. This makes the unit compact and light weight. The circuit has two sections. The front end is a charger section with capacitor C1 as the main element.