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BsJ SandeepA
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Please help me..
how to make simple transformer to 3V up to 12V
how to make simple transformer to 3V up to 12V
In the class room we do this using laminated transformer cores called C-cores. They clip together to form a ring and the diameter is about 5cm. I remember that a primary of about 50 turns and a secondary of 250 turns will be about right. There is always a slight loss of voltage due to leakage so you need a few extra secondary turns as I have suggested. If you try to do it using nails or rods it does not work very well.BsJ SandeepA said:Please help me..
how to make simple transformer to 3V up to 12V
thanks for your helprootone said:Remember that your supply voltage must be AC, (and your output will be AC too)
A simple transformer doesn't work for DC, although there are more complicated devices that can step up DC to higher voltage.
1. You might find a transformer with taps on the secondary for 3V and for 12V. Insulate the primary terminals and then use it as an autotransformer. It will not isolate the 3VAC and 12VAC terminals. https://en.wikipedia.org/wiki/AutotransformerBsJ SandeepA said:Please help me..
how to make simple transformer to 3V up to 12V
A transformer works by converting the electrical energy from one circuit into another circuit with a different voltage level. This is achieved by using two or more coils of wire wrapped around a common core. The changing magnetic field created by the primary coil induces a voltage in the secondary coil, thus stepping up or stepping down the voltage.
The materials needed to make a simple transformer include a soft iron core, two coils of insulated wire (one for the primary and one for the secondary), and a power source. The wire used should have a high number of turns for the primary coil and a lower number of turns for the secondary coil.
The number of turns for the primary and secondary coils can be determined using the formula Np/Ns = Vp/Vs, where Np is the number of turns for the primary coil, Ns is the number of turns for the secondary coil, Vp is the voltage of the power source, and Vs is the desired output voltage. For example, if you want an output voltage of 12V and have a power source of 120V, the ratio would be 10:1, meaning the primary coil would have 10 times more turns than the secondary coil.
A step-up transformer increases the voltage level of the output compared to the input, while a step-down transformer decreases the voltage level of the output compared to the input. This is achieved by varying the number of turns in the primary and secondary coils.
Yes, it is important to take safety precautions when making a transformer as it involves working with electricity. Make sure to use insulated wire and handle the wires carefully to avoid electric shocks. Also, be sure to use the appropriate power source for your transformer and follow all safety guidelines and instructions carefully.