How to Make a Simple Battery Charger With Bridge Rectifier Circuit?
What is a Step Down Transformer?
Transformer is a device used to step up or step down the input voltage. A step down transformer reduces the input voltage and provide a lower voltage at output. A transformer works on the principle of mutual induction.
What is a Rectifier Circuit?

1. Half wave rectifier
2. Full wave rectifier
3. Bridge rectifies
We are going to make battery charger working on a Bridge rectifier circuit. A diode is the main part of a rectifier, which converts the alternating current to direct current.
Bridge Rectifier
Circuit diagram of a dc charger with bridge rectifier is shown in figure. A bridge rectifier uses 4 similar diodes and a filter capacitor.How to make DC battery charger

1. Step down transformer 7.5 volt 500 mA
2. Four diodes IN4007
3. Capacitor 1000 microfarad 16v-1
Connect the components as shown in the Circuit diagram. You are done! Charger is ready to use. You can use this device as an AC adapter or as a charges for 6V battery. Buy some components such a box to hold the components, two pin wire, insulation tap etc to secure the charger. What's next, lets start now! I think you have a doubt about the circuit. Share with me. I Can help you.
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