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Re: [booksbybibin,www.booksbybibin.tk] Have Problem to interface a Triac

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  • Wolfgang Günther
    ... The MOC3041 _is_ such an optocoupler (LED Trigger Current: 15 mA). See http://www.fairchildsemi.com/ds/MO/MOC3041-M.pdf Do you want to switch the bulb
    Message 1 of 12 , Sep 6 6:02 AM
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      mihaigalos schrieb:
      > Use an optocpoupler as a intermediate stage between the triac and the AVR

      The MOC3041 _is_ such an optocoupler (LED Trigger Current: 15 mA).
      See http://www.fairchildsemi.com/ds/MO/MOC3041-M.pdf

      Do you want to switch the bulb constantly or dim it by phase cutting ?
      The MOC3041 has a zero cross detection, which makes it a bad choice for
      a MiPro-driven dimmer. Use MOC3021 instead, if you want to trigger
      _between_ zero crossings for the rest of each half cycle period

      But if you just switch the optocoupler on and off for a longer period,
      it might also work with the MOC3041.

      Wolfgang


      Muhammad Sadiq Asgher schrieb:
      >
      >
      > Dear All,
      >
      > I am having problems to interface a triac with avr. Actually I want to
      > drive the 100 watts bulb.I have also used triac drive MOC3041 but no
      > result achieve. Any suggestion and cooperation will be appreciated.
      > Regards.
      >
      > Muhammad Sadiq Asgher
    • Ever Cifuentes
      I send you a diagram Ever ________________________________ De: Muhammad Sadiq Asgher Para: booksbybibin@yahoogroups.com Enviado: jueves,
      Message 2 of 12 , Sep 7 8:43 PM
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      • 9 KB
      I send you a diagram
       
      Ever


      De: Muhammad Sadiq Asgher <ms_asgher@...>
      Para: booksbybibin@yahoogroups.com
      Enviado: jueves, 3 de septiembre, 2009 0:13:58
      Asunto: [booksbybibin,www.booksbybibin.tk] Have Problem to interface a Triac

       

      Dear All,
       
      I am having problems to interface a triac with avr. Actually I want to drive the 100 watts bulb.I have also used triac drive MOC3041 but no result achieve. Any suggestion and cooperation will be appreciated.  
      Regards.
       
      Muhammad Sadiq Asgher


    • ae6zm
      From the diagram you uploaded I see you are having difficulty designing the circuit. There are a couple things you might try. First, do an internet search for
      Message 3 of 12 , Sep 8 8:34 AM
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        From the diagram you uploaded I see you are having difficulty designing the circuit. There are a couple things you might try. First, do an internet search for "triac circuits". You will find many you can just copy. Second, you would need to do some study to learn the basics of electronic theory, and then you could design your own circuits. That may take too much time, so the first may well be your best option.

        The circuit you show us has some serious problems:
        1- The driver transistor is connected directly across VCC, so if (when) it turns on it will short out the power supply. = smoke!!
        2- The gate of the triac is connected directly to VCC, so will never see a switching action from the transitor.
        3-The LED in series with the transistor base may not allow the transister to turn on, depending on the transistor's base characteristics and the size of resistor you put in the circuit. Transistors are current controlled devices, so you would need to calculate the required base clurrent to drive the transistor into saturation, and then design the input cirucuit to provide that current.
        4- It would be wise to isolate the AC power from the DC circuit of the uController. =Less smoke!!

        You have an interesting project, I know there is information on the internet about precisely what your are trying to do, so a little searching will solve your problem.

        Regards,

        Wes
        AE6ZM & VE7ELE
        ARRL Technical Specialist
        AEC Placer County ARES
        Lincoln, CA
        CM98iv
        --- In booksbybibin@yahoogroups.com, Muhammad Sadiq Asgher <ms_asgher@...> wrote:
        >
        > Dear Mihai,
        >  
        > Hey Mihai using transistor to drive the gate o fthe triac is also not working. I am attaching the circuit so tell me if there is any problem in the circuit. 
        >  
        > Thanks & Regards
        > Muhammad Sadiq Asgher 
        >
        >
        >
        > --- On Fri, 9/4/09, mihaigalos <mihaigalos@...> wrote:
        >
        >
        > From: mihaigalos <mihaigalos@...>
        > Subject: [booksbybibin,www.booksbybibin.tk] Re: Have Problem to interface a Triac
        > To: booksbybibin@yahoogroups.com
        > Date: Friday, September 4, 2009, 4:31 PM
        >
        >
        > :O
        >
        > Use an optocpoupler as a intermediate stage between the triac and the AVR. The command current shouldn't exceed 20mA, if it does, use a transistor or a repeating/ inverting gate.
        >
        > Regards,
        > Mihai G.
        > --- In booksbybibin@yahoogroups.com, Muhammad Sadiq Asgher <ms_asgher@> wrote:
        > >
        > > Dear All,
        > >  
        > > I am having problems to interface a triac with avr. Actually I want to drive the 100 watts bulb.I have also used triac drive MOC3041 but no result achieve. Any suggestion and cooperation will be appreciated.  
        > >
        > > Regards.
        > >  
        > > Muhammad Sadiq Asgher
        > >
        >
        >
        >
        >
        > ------------------------------------
        >
        > Yahoo! Groups Links
        >
      • ae6zm
        Ever, looks like a good circuit. Will the 3031 handle the 220VAC? The data sheet says max 250V peak, and 220VAC has a peak of ^300. Perhaps the 3041 would be a
        Message 4 of 12 , Sep 8 8:53 AM
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          Ever, looks like a good circuit. Will the 3031 handle the 220VAC? The data sheet says max 250V peak, and 220VAC has a peak of ^300. Perhaps the 3041 would be a safer choice?? I have not built the circuit, so if you have done so and it works, then no problem.

          Wes
          AE6ZM & VE7ELE
          ARRL Technical Specialist
          AEC Placer County AREs
          Lincoln, CA
          CM98iv

          --- In booksbybibin@yahoogroups.com, Ever Cifuentes <ever_cifuentes@...> wrote:
          >
          > I send you a diagram
          >
          > Ever
          >
          >
          >
          >
          > ________________________________
          > De: Muhammad Sadiq Asgher <ms_asgher@...>
          > Para: booksbybibin@yahoogroups.com
          > Enviado: jueves, 3 de septiembre, 2009 0:13:58
          > Asunto: [booksbybibin,www.booksbybibin.tk] Have Problem to interface a Triac
          >
          >  
          > Dear All,
          >
          > I am having problems to interface a triac with avr. Actually I want to drive the 100 watts bulb.I have also used triac drive MOC3041 but no result achieve. Any suggestion and cooperation will be appreciated.  
          >
          > Regards.
          >
          > Muhammad Sadiq Asgher
          >
          >
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        • Ever Cifuentes
          Hi Exactly, I use the moc3041 (with zero crossing), another  is the MOC3022 (without zero crossing). See the data sheets. Ever
          Message 5 of 12 , Sep 8 3:21 PM
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            Hi
            Exactly, I use the moc3041 (with zero crossing), another  is the MOC3022 (without zero crossing). See the data sheets.
             
            Ever
             
             

            De: ae6zm <WESBFLYER@...>
            Para: booksbybibin@yahoogroups.com
            Enviado: martes, 8 de septiembre, 2009 10:53:02
            Asunto: Re: [booksbybibin,www.booksbybibin.tk] Have Problem to interface a Triac

             

            Ever, looks like a good circuit. Will the 3031 handle the 220VAC? The data sheet says max 250V peak, and 220VAC has a peak of ^300. Perhaps the 3041 would be a safer choice?? I have not built the circuit, so if you have done so and it works, then no problem.

            Wes
            AE6ZM & VE7ELE
            ARRL Technical Specialist
            AEC Placer County AREs
            Lincoln, CA
            CM98iv

            --- In booksbybibin@ yahoogroups. com, Ever Cifuentes <ever_cifuentes@ ...> wrote:
            >
            > I send you a diagram
            >
            > Ever
            >
            >
            >
            >
            > ____________ _________ _________ __
            > De: Muhammad Sadiq Asgher <ms_asgher@. ..>
            > Para: booksbybibin@ yahoogroups. com
            > Enviado: jueves, 3 de septiembre, 2009 0:13:58
            > Asunto: [booksbybibin, www.booksbybibin .tk] Have Problem to interface a Triac
            >
            >  
            > Dear All,
            >
            > I am having problems to interface a triac with avr. Actually I want to drive the 100 watts bulb.I have also used triac drive MOC3041 but no result achieve. Any suggestion and cooperation will be appreciated.  
            >
            > Regards.
            >
            > Muhammad Sadiq Asgher
            >
            >
            > __._,_..___
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          • razak abdul
            you can use TIC206 or BT136 , find the datasheet in attachment   Rgds   Razak ... From: ae6zm Subject: Re:
            Message 6 of 12 , Sep 8 7:08 PM
            you can use TIC206 or BT136 , find the datasheet in attachment
             
            Rgds
             
            Razak

            --- On Tue, 9/8/09, ae6zm <WESBFLYER@...> wrote:

            From: ae6zm <WESBFLYER@...>
            Subject: Re: [booksbybibin,www.booksbybibin.tk] Have Problem to interface a Triac
            To: booksbybibin@yahoogroups.com
            Date: Tuesday, September 8, 2009, 3:53 PM

            Ever, looks like a good circuit. Will the 3031 handle the 220VAC? The data sheet says max 250V peak, and 220VAC has a peak of ^300. Perhaps the 3041 would be a safer choice?? I have not built the circuit, so if you have done so and it works, then no problem.

            Wes
            AE6ZM & VE7ELE
            ARRL Technical Specialist
            AEC Placer County AREs
            Lincoln, CA
            CM98iv

            --- In booksbybibin@yahoogroups.com, Ever Cifuentes <ever_cifuentes@...> wrote:
            >
            > I send you a diagram
            >
            > Ever
            >
            >
            >
            >
            > ________________________________
            > De: Muhammad Sadiq Asgher <ms_asgher@...>
            > Para: booksbybibin@yahoogroups.com
            > Enviado: jueves, 3 de septiembre, 2009 0:13:58
            > Asunto: [booksbybibin,www.booksbybibin.tk] Have Problem to interface a Triac
            >
            >  
            > Dear All,
            >
            > I am having problems to interface a triac with avr. Actually I want to drive the 100 watts bulb.I have also used triac drive MOC3041 but no result achieve. Any suggestion and cooperation will be appreciated.  
            >
            > Regards.
            >
            > Muhammad Sadiq Asgher

            >
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          • Saeed Ahmed
            HI SADIQ,  HERE I M ATTACHING THE PROTEOUS MODEL AND JPEG IMAGE FOR UR CONCERN TO INTERFACE A TRIAC WITH MICROCONTROLLER.THE CIRCUIT IS TESTED AND WORKING
            Message 7 of 12 , Sep 12 1:41 PM
            HI SADIQ,
             HERE I M ATTACHING THE PROTEOUS MODEL AND JPEG IMAGE FOR UR CONCERN TO INTERFACE A TRIAC WITH MICROCONTROLLER.THE CIRCUIT IS TESTED AND WORKING FINE PLZ TRY IT .
            REGARDS
            DANY

            --- On Sat, 9/5/09, Muhammad Sadiq Asgher <ms_asgher@...> wrote:

            From: Muhammad Sadiq Asgher <ms_asgher@...>
            Subject: Re: [booksbybibin,www.booksbybibin.tk] Re: Have Problem to interface a Triac
            To: booksbybibin@yahoogroups.com
            Date: Saturday, September 5, 2009, 4:49 AM

             
            Thanks Mihai i will try it.
             
            Regards
            Muhammad Sadiq Asgher
             
            --- On Fri, 9/4/09, mihaigalos <mihaigalos@yahoo. com> wrote:

            From: mihaigalos <mihaigalos@yahoo. com>
            Subject: [booksbybibin, www.booksbybibin .tk] Re: Have Problem to interface a Triac
            To: booksbybibin@ yahoogroups. com
            Date: Friday, September 4, 2009, 4:31 PM

            :O

            Use an optocpoupler as a intermediate stage between the triac and the AVR. The command current shouldn't exceed 20mA, if it does, use a transistor or a repeating/ inverting gate.

            Regards,
            Mihai G.
            --- In booksbybibin@ yahoogroups. com, Muhammad Sadiq Asgher <ms_asgher@.. .> wrote:
            >
            > Dear All,
            >  
            > I am having problems to interface a triac with avr. Actually I want to drive the 100 watts bulb.I have also used triac drive MOC3041 but no result achieve. Any suggestion and cooperation will be appreciated.  
            >
            > Regards.
            >  
            > Muhammad Sadiq Asgher
            >




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