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Forum Index : Microcontroller and PC projects : Synchronous PWM
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kiiid Guru Joined: 11/05/2013 Location: United KingdomPosts: 671 |
For control of mains-powered stuff zero-cross synchronisation is needed. Is it possible with the mite? http://rittle.org -------------- |
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twofingers Guru Joined: 02/06/2014 Location: GermanyPosts: 1133 |
How about a cheap SSR (solid state relay)? Regards Michael |
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CaptainBoing Guru Joined: 07/09/2016 Location: United KingdomPosts: 1985 |
really easy to detect http://www.fruitoftheshed.com/Circuit%20Ideas.Really-Simple-Zero-Crossing-Detect.ashx?HL=zero I use this to allow switching within a few volts of the ZCP: Power demand, monitor this input for the pulse and make your move. If you use a conventional relay the type of load isn't important; capacitive, inductive etc. |
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Geoffg Guru Joined: 06/06/2011 Location: AustraliaPosts: 3165 |
Not easy to do in MMBasic. I had a look at it some time ago but it is worth revisiting. Geoff Geoff Graham - http://geoffg.net |
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Zonker Guru Joined: 18/08/2012 Location: United StatesPosts: 761 |
Phase control would be awesome also..! |
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matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8592 |
Yes with a CFunction There is a hook into the INT2 hardware interrupt available to the CFunction (CFuncInt2). This was specifically included by Geoff for this sort of application. |
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