SeBsZ asked:

Hi Christian,

Please can you tell me a model of VERY common and popular SSR that will work with the pcdimmer? I am scared of buying SSRs because I don't know about the zerocrossing detection etc. and which will work.

Each SSR will be dimming a single 80W incandescent bulb. So 1-2A should be enough for each SSR.

Please, can you help me find a model number that will work with the pcdimmer.

Thanks!! Im on MSN if you can tell me there that would be great, because I dont check this forum every day.

Sorry, but I've deleted the MSN some months ago... You can use the Sharp S202S01 Solid-State-Relay.

here a short list of the available types:
S102S01 = 100Vac without ZeroCrossing Detection (for Dimming)
S102S02 = 100Vac with ZeroCrossing Detection (for Switching)
S202S01 = 200Vac without ZeroCrossing Detection (for Dimming)
S202S02 = 200Vac with ZeroCrossing Detection (for Switching)


Instead of SSRs you can use TRIACs with an optocoupler (as shown in the pc_dimmer schematics).


cu,
Chris Smile

Hi,

So you can confirm that I can use the Sharp S202S01 in the pcdimmer (instead of the whole Triac/optocoupler) and drive a 80W incandescent lightbulb and be able to dim it etc.

Just need a confirmation - as I'm buying 64 of them Razz

ANd have YOU used this SSR in one of your pcdimmers?

Thanks

Hey SeBsZ,


here is the pdf-file I've taken to get my informations:

http://www.ortodoxism.ro/datasheets/Sharp/mXusrsu.pdf

The S202S01 (with "one" at the end) does not have a zero-crossing-detection.

And yes, I am using SSRs in my first dimmer - they are working great. In the one hand it is a bit more expensive to replace damaged SSRs than TRIACs, but in the other hand it save much components on the board Smile


Good luck Wink

Hi,

I ordered the SSRs!

Please can you also tell me whether I can remove the LED and resistor in the line that connects to the SSR, or I need the resistor in series with the SSR?

Thanks

The resistor is very important. It reduces the current to the gate of the SSR. If you connect the SSR to the atmel directly, the gate or the processor could be damaged by an overcurrent.

The LED is optional, just remove the LEDs and connect the SSR directly to the resistor. This is no problem.


Good night Smile

Thank you for your help,

I was wondering how you built your circuit boards. Did you use standard board with many holes already there, or you got professional printed circuit boards?

I'm afraid if I just use wires to connect everything, I will get a LOT of wires crossing each other and there might be interference (EMI?) . Which parts should I keep far away from each other? Could the SSRs when dimming create this interference and interfere with the small low voltage signal wires?

Thank you,

Sebastiaan