Apr 15, 2004 #1 S seyyah Advanced Member level 2 Joined Oct 7, 2001 Messages 646 Helped 8 Reputation 16 Reaction score 8 Trophy points 1,298 Activity points 6,233 solid state relay How can we make a simple and reliable solid state relay which can work at 48VDC and 220VAC with a current rating of 1A
solid state relay How can we make a simple and reliable solid state relay which can work at 48VDC and 220VAC with a current rating of 1A
Apr 15, 2004 #2 FoxyRick Advanced Member level 4 Joined Jan 8, 2004 Messages 1,249 Helped 321 Reputation 640 Reaction score 277 Trophy points 1,373 Location England, UK Activity points 12,979 Re: solid state relay Use a triac - see these examples... http://www.hut.fi/Misc/Electronics/circuits/semiconductor_relays.html **broken link removed** http://www.geocities.com/ido_bartana/SSR/circuit.html Cheers, FoxyRick.
Re: solid state relay Use a triac - see these examples... http://www.hut.fi/Misc/Electronics/circuits/semiconductor_relays.html **broken link removed** http://www.geocities.com/ido_bartana/SSR/circuit.html Cheers, FoxyRick.
Apr 16, 2004 #3 C cesariv Junior Member level 1 Joined Mar 8, 2004 Messages 17 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 172 solid state relay If you want to use DC voltage with TRIACs. I suggest you to research for forced commutation. This circuit allows you to turn off your TRIAC anytime.
solid state relay If you want to use DC voltage with TRIACs. I suggest you to research for forced commutation. This circuit allows you to turn off your TRIAC anytime.
May 1, 2004 #4 B bhaskar1996 Newbie level 1 Joined May 1, 2004 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 8 Re: solid state relay Try using optocoupler with the triac its easy.
May 1, 2004 #5 D davorin Advanced Member level 3 Joined Jun 7, 2003 Messages 901 Helped 11 Reputation 22 Reaction score 4 Trophy points 1,298 Location Switzerland Activity points 7,349 Re: solid state relay No..isn´t that easy!!! Problem with mixing DC and AC is that all (i know of) DC SSR are MOSFET absed and all AC are SCR based... The only one manufacturer I am aware of is Teledyne: https://www.teledynerelays.com/selectionmatrix.asp Maybe you want to use a bridge-rectifier in series to the load and inside a normal high-volatge MOS/Bipolar transistor?
Re: solid state relay No..isn´t that easy!!! Problem with mixing DC and AC is that all (i know of) DC SSR are MOSFET absed and all AC are SCR based... The only one manufacturer I am aware of is Teledyne: https://www.teledynerelays.com/selectionmatrix.asp Maybe you want to use a bridge-rectifier in series to the load and inside a normal high-volatge MOS/Bipolar transistor?
Jan 7, 2005 #6 metal Full Member level 6 Joined Dec 21, 2004 Messages 364 Helped 19 Reputation 38 Reaction score 6 Trophy points 1,298 Activity points 3,834 Re: solid state relay Hello Go for MOC3062, it has built in zero-crossing, and can directly drive a triac. Regards
Re: solid state relay Hello Go for MOC3062, it has built in zero-crossing, and can directly drive a triac. Regards