I actually needed to built a step down transformer. That's if the voltage is 220 volt i needed it to 110volt if its 110volt i need to 2volts. That 220volt to 2volt range i only need a some circuit diagrams to built it and few steps and some info and the list of components needed to setup a step down converter/transformer. In india we have 220 voltage supply so i need not need a step up converter/transformer. I only need is only a step down converter/transformer. Can some help me in making this device(step down converter/transformer)

 

Step down converter

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