Making household electricity usable for experiments

345

05:05:12

You can use your household supply of mains electricity(~200V, 50/60Hz) through this circuit to do experiments which need low voltage DC(1V~12V).
The AC input at the beginning is 200V,50Hz. The LED glows at 2V only. The LED will burn out if I directly supply the AC input. 
I've Step-down the 200V,50Hz to 9V,50Hz. Then the diodes do the full-wave rectification of the AC  current(in layman's lang, they convert AC to DC). The Capacitor and resistor in parallel, regulate the current and voltage difference.(in layman's lang, they make the current and voltage smoother). Now, it'll almost behave like a current through a 9V battery.

published 8 years ago

BillyT

8 years ago

That's the basis of it.

crabchurch

8 years ago

Cool but where would a layman get a 1k:53 transformer?

Azmik_Arkotsi

8 years ago

Crabchurch, if you change the windings to 1000/100 and change the resistor to 470ohms, it will still work.

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