Neverthless leaving all this, I will say that programme a 8-bitter uC that handles the phase cutting etc for dimming the lights and communicate using the UART/serial channel to and from IOIO & uC , very easy and next to cost addition (well practically cost of a uC perfect to do this will be around $2)
On Thu, Jan 9, 2014 at 6:07 PM, Arthur Marxer <[email protected]>wrote: > @Nishant Sorry for this misunderstanding, I don't want to mistrust your > know how. I think, we both know how this circuit works. > Your sentence "cut the phase at zero crossing" might be misleading for > some people who read this. I would say "you need to cut the phase after > zero crossing" and the time between zero crossing and the cut determines > the power. The longer I wait, the lesser the power. > > Am Donnerstag, 9. Januar 2014 13:09:52 UTC+1 schrieb n: >> >> What Not correct ? All I meant is well the whole purpose of ascertaining >> the zero crossing is to know when to cut the phase. That's it. >> Its different that you need to wait a bit to generate the desired dimming. >> I do that a lot of time with my andRHOME device. >> >> About the amperage >> >> Thanks & Regards, >> Nishant >> ------------------- >> Sent from My Android (humongous NOTE-II) >> On 9 Jan 2014 17:31, "Arthur Marxer" <[email protected]> wrote: >> >>> "cut the phase at zero crossing" is not quiet correct. I have to detect >>> the zero crossing, then wait for a certain amount of time and then execute >>> the trigger pulse. The triac will close the circuit and the "rest" of the >>> wave will flow through the bulb. The triac will open the circuit again at >>> the next zero crossing. The amount of "wait time" determines the lightness. >>> >>> Triacs are made for this purpose and 4 amps is not a lot for a triac >>> (e.g. the BT137 supports 8 amps). I also plan not to use one single >>> "channel" but 10 channels or more. >>> >>> >>> 2014/1/9 n <[email protected]> >>> >>>> Arthur, >>>> >>>> For dimming ac you need to cut the phase at zero crossing For that you >>>> need to use a opto driver like the 4n35 to ascertain the ac voltage wave >>>> and then drive the triacs through opto triac drivers. >>>> The coding is very easy if one understands the concept basics. >>>> >>>> For dimming 1000watts it would be a whole lot of amperage 1000/230vac >>>> gives you A bit less than 4 amps >>>> >>>> -- >>>> You received this message because you are subscribed to a topic in the >>>> Google Groups "ioio-users" group. >>>> To unsubscribe from this topic, visit https://groups.google.com/d/ >>>> topic/ioio-users/s_NY9im_SVY/unsubscribe. >>>> To unsubscribe from this group and all its topics, send an email to >>>> [email protected]. >>>> To post to this group, send email to [email protected]. >>>> Visit this group at http://groups.google.com/group/ioio-users. >>>> For more options, visit https://groups.google.com/groups/opt_out. >>>> >>> >>> -- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "ioio-users" group. >>> To unsubscribe from this topic, visit https://groups.google.com/d/ >>> topic/ioio-users/s_NY9im_SVY/unsubscribe. >>> To unsubscribe from this group and all its topics, send an email to >>> [email protected]. >>> To post to this group, send email to [email protected]. >>> Visit this group at http://groups.google.com/group/ioio-users. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >> -- > You received this message because you are subscribed to a topic in the > Google Groups "ioio-users" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/ioio-users/s_NY9im_SVY/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/ioio-users. > For more options, visit https://groups.google.com/groups/opt_out. > -- *Thanks & Regards,* *Nishant Sood* *--* *CEO and Founder* *Winacro Innovation's Inc.* *----------------------------------------* *www.winacro.com <http://www.winacro.com>* *----------------------------------------* *Contact's:* *Mobile: +91-8447476798* *Phone: 0129-4176798* *Email: [email protected] <[email protected]>* -- You received this message because you are subscribed to the Google Groups "ioio-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/ioio-users. For more options, visit https://groups.google.com/groups/opt_out.
