[chbot] Triac snubber

m.beckett at amuri.net m.beckett at amuri.net
Sun Jan 20 22:35:56 GMT 2013


Jasper
I don't have a cct here, but when I was doing Triac switching, we put 
the Opto between the gate and load, rather than the supply and gate.

It worked much better with inductive loads.
 From memory there was nothing extra added.


Mark

On Mon, 21 Jan 2013 10:00:43 +1300, Kerry Harpur wrote:
> Hi Jasper,
>
> Just at Kerrys steam-box.
>
> So you are using a TRIAC as a power switch to enable or disable mains
> to the input of an SMPSU -- so this could just as easily be a relay
>
> Sorry for the daft question, but I want to be completely clear
> about requirements first.
>
> -Mark
>
> On Mon, Jan 21, 2013 at 9:29 AM, Volker Kuhlmann  wrote:
>
>> On Mon 21 Jan 2013 09:03:42 NZDT +1300, Jasper Mackenzie wrote:
>>
>> > I guess the problem being the ~30VAC in the off state must be
>> higher
>> > than the holding voltage for the smps.
>>
>> Unless you detail that circuit it will be impossible to say
>> anything
>> about it.
>>
>> Volker
>>
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>> Volker Kuhlmann
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