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Ideas

Travis BestTravis Best Posts: 8
edited 2007-08-09 20:32 in General Discussion
Anyone have any idea's on how I could use a SX control to read a SIN wave that is being clipped by a dimmer switch I want to be able to read the SIN wave and the use that data to control other devices based on where the dimmer is set

Comments

  • Sparks-R-FunSparks-R-Fun Posts: 388
    edited 2007-08-09 20:21
    My assumption is that the sine wave is passed through the dimmer for a variable period of time during a half-cycle. The rest of the time no signal is passed until the next half cycle begins. If this is a valid assumption, perhaps you can simply time the duration of the “off” periods to determine the dimmer setting.

    - Sparks idea.gif
  • JonnyMacJonnyMac Posts: 9,522
    edited 2007-08-09 20:32
    The H11AA1 can be used to implement Sparks's idea -- it's what I use to detect ZC in my fader board; that way you have optical isolation between your AC and DC circuits.
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