3.3V source controlling 120VAC via Relay

215

03:39:18

UPDATED 2015-12-11

Based on:  
http://blog.thelifeofkenneth.com/2010/01/switching-120vac-with-5v-digital-logic.html
http://everycircuit.com/circuit/5366253166264320

For the circuit on the left, a microcontroller would normally take the place of the SPDT switch.  Using a relay and transistor, the switch controls 120VAC lamps, while using very little power itself.

published 11 years ago

graham270951

11 years ago

This explains quite a lt. Thanks. Graham270951

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