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    Why you Might use an Alternistor (triac type)

    Dr Chaotica
    Dr Chaotica
    Dr Chaotica


    Posts : 56
    Join date : 2012-02-22
    • Post n°1

    Why you Might use an Alternistor (triac type) Empty Why you Might use an Alternistor (triac type)

    Post  Dr Chaotica Mon Dec 06, 2021 11:47 pm

    Another name for these is the three-quadrant TRIAC. They are made to only work in quadrants 1 through 3 but not 4. It turns off more quickly than other models as well. They don’t need snubbers due to this limitation and are often called “SNUBBERLESS”.
    https://circuitindustryjournal.wordpress.com/2013/11/25/why-you-might-use-an-alternistor/

    A BTA24-600B is a triac, denoted by the B suffix. A BTA24-600BW is an Alternistor, as would be a CW suffix (snubberless). The datasheet still references "Triac" for all of them.
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    Dr Chaotica
    Dr Chaotica
    Dr Chaotica


    Posts : 56
    Join date : 2012-02-22
    • Post n°2

    Why you Might use an Alternistor (triac type) Empty Re: Why you Might use an Alternistor (triac type)

    Post  Dr Chaotica Tue Dec 07, 2021 3:07 pm

    Good page that deals with the Ebay 2000 Watt triac controller: https://www.codrey.com/electronic-circuits/triac-ac-dimmer-speed-regulator-random-thoughts/

    RC snubber circuit design for TRIACs by ST PDF: https://www.st.com/resource/en/application_note/cd00004096-rc-snubber-circuit-design-for-triacs-stmicroelectronics.pdf

    TRIAC Dimmer Avoids Snap-ON. Removing erattic startup behaviour with 3 components: https://www.electroschematics.com/triac-lamp-dimmer-snap-on/

    Basic Triacs and SCR Projects and Circuits: https://www.bristolwatch.com/ele/triacs.htm
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