Скачать или смотреть Filtered vs unfiltered DC power supply #2 (NCPQ)

This is a simple demonstration of a filtered vs unfiltered power supply typical of the high school physics laboratory. On the left is the unfiltered supply and on the right is the filtered supply. They are both produced from full wave rectification of a 50 Hz AC supply which uses a bridge rectifier or 4 diodes to produce a 100 Hz output. However, the filtered supply has a smoothing capacitor to even out the waveform. The readings on digital multimeters (DMMs) can be seen on the yellow meters above.

Filmed at Moreton Bay College, Brisbane, by Dr Richard Walding, author New Century Physics for Queensland, 3rd ed, 2019, Oxford University Press.

Website: seniorphysics.com/ncpq