How to double the voltage ⚡⚡ of a transformer without rewinding using just 4 parts

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If you are familiar with electronics and radio engineering, then a problem often arises: there is a sufficiently powerful transformer, but the secondary winding voltage is not enough. Rewinding her task is very difficult. In this article, we will show you how to double the voltage of a transformer without rewinding, with just two diodes and two capacitors.

Content:

Work materials
- Step 1. Assembling the voltage doubler circuit
- Step 2. Testing
  - How to double the voltage of a transformer without rewinding

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Materials for work

In order to double the voltage of a transformer, you will need:

two rectifier diodes 1N4007;
two electrolytic capacitors 2200 uF 25 V;
soldering iron;
insulated wires;
wire cutters;
multimeter.

Step 1. Assembling the voltage doubler circuit

We assemble a doubler according to the Latour - Delon - Grenacher scheme.

Scheme

We bite a little at one capacitor the plus leg of the second - the minus one and solder them together.

Solder the diodes to the second legs of the capacitors, observing the polarity.

To the second legs of the capacitors, observing the polarity, solder the diodes

We solder the remaining legs of the rectifier diodes to each other.

Step 2. Testing

With a multimeter we measure the voltage on the secondary winding of the transformer - 11 V AC.

We measure the voltage on the secondary winding of the transformer with a multimeter

Source: https://youtu.be/AHtMgGZZXUo

We solder the outputs of the transformer to the doubler. We also solder a couple of wires to the output of the doubler.

We measure the voltage at the output of the circuit - 30 V DC.

The voltage of the secondary winding 11 V measured by us is effective. The amplitude value, to which both capacitors are charged in different half-cycles, is 1.41 times higher, that is, ≈15.5 V. The capacitors connected in series increase the output voltage to 30 V. When connecting the load, one should take into account the fact that the current consumption on the secondary winding of the transformer will increase by 2 times.