With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
We have a be nice comment policy. Please be positive and constructive.
We noticed you attached photosto your comment.
DC relays consist of wire wound on a bobbin, which is placed over a ferromagnetic core. A hinged contact assembly is positioned over the core .When current is applied to the coil, flux is induced in the ferromagnetic core, causing the contacts to close.
AC relays are manufactured similar to their DC counterparts. If AC current is applied to a DC relay, the relay will pulse at the frequency of the AC current. To overcome this problem, the core is equipped with a shading ring on one-half of the core (Photo 2). The shading ring acts like a shorted secondary winding in a transformer, causing the flux in that half of the core to be 90° out of phase with the flux in the other half. The result is that the flux in the core never falls to zero, allowing the relay to energize the contacts.
Circuit For Flashing Lights With Music
Home Automation - How to Add Relays to Arduino
All You Need To Know About a Relays
Make an Simple Motion Sensor Relay Board (PIR)
Controlling Christmas Lights with the Intel Edison + Grove Smart Relay
Wireless LED Aquarium Controller With SPARK.IO CORE at TechShop
Intel Edison based heated 3d printer enclosure (use an arduino, edison sucks, froze eve…
Relay Module for Arduino
Wireless light switch or bust
How Electronic Switches Work For Noobs: Relays and Transistors
Posted:Dec 17, 2011
Join 2 million + to receive instant DIY inspiration in your inbox.
Download our apps!
© 2016 Autodesk, Inc.