Image:Variable power supply using switched multiple tap transformer.jpg

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[edit] Summary

This is the inside of a "wall wart" style variable power supply.

The large component with yellow parts is a transformer with several 'tappings'. By connecting to different tappings, different voltages can be produced.

Full wave rectification is provided by four silicon diodes, the black-and-grey components above the rightmost switch, arranged as a rectifier. Smoothing is provided by the large black capacitor. The resistor seen on the left regulates voltage to the status LED.

[edit] Licensing

Photo taken by Mike1024.

This work has been released into the public domain by the copyright holder. This applies worldwide. In case this is not legally possible: The copyright holder grants any entity the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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