DiyLightAnimation

Hardware => Lynx SSR4 => Topic started by: blaha on September 27, 2011,

Title: Does SSR4 with DMX option have snubbers?
Post by: blaha on September 27, 2011,
I tried searching but couldn't find a clear answer. I assume since there are not 47k ohm 1/2 watt resistors for each channel like the LE the answer is no. Not a big deal as I still have my home made snubbers I can put on the strings but wanted to double check.
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: rmp2917 on September 27, 2011,
No. The SSR4's do not have snubbers built in to the circuit board.
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: holland lights on September 27, 2011,
What does snubbers do. DOes it make the dimming smoother or something?
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: rrowan on September 27, 2011,
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What does snubbers do. DOes it make the dimming smoother or something?

It helps LED light strings dim.

Rick R.
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: trekster on September 27, 2011,
So if I plan on using some ssr4's with led's this year do I need snubbers?

Ron
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: Rainlover on September 27, 2011,
I thought the snubbers eliminated the flicker on LEDs.
I could be wrong. I have old brain cells.

John
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: SGInut on September 27, 2011,
Some LED strings don't draw enough power to cause the outputs to stay turned on so they will not light up 100% of the time.  Snubbers create a power draw large enough to break over that minimum power threshold needed to keep the outputs turned on when they are supposed to be on.
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: holland lights on September 27, 2011,
So how do you go by making a snubber, just adding a 470 ohm resister across to both channel connectors?
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: jnealand on September 27, 2011,
Here is the simple way, at least it was for me.  This is from the downs family christmas (see link at bottom of pdf file)  I made a 100 last year and eliminated all my flicker on my older LEs
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: lortiz on September 27, 2011,
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So how do you go by making a snubber, just adding a 470 ohm resister across to both channel connectors?

Be careful, recommended snubber resistor is 47KOhm 1/2 watt, and yes you can connect the resistor across each channel connector.

Leo
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: rmp2917 on September 27, 2011,
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So if I plan on using some ssr4's with led's this year do I need snubbers?

The snubbers are only needed if you are using LED lights. Some LEDs work fine without them. Others don't. I would suggest plugging your lights into the controller and try dimming them. If they work as expected, you should be fine without the snubbers. If not, then try adding the snubber.
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: holland lights on September 27, 2011,
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So how do you go by making a snubber, just adding a 470 ohm resister across to both channel connectors?

Be careful, recommended snubber resistor is 47KOhm 1/2 watt, and yes you can connect the resistor across each channel connector.

Leo
Well yes i should of noted the 1/2 watt resistor. Thats what i install in the controler boards i created.
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: n1ist on September 28, 2011,
As Leo said, it is a 47K (47000 ohms) 1/2W resistor.  A 470 ohm resistor will make lots of smoke instead.
/mike
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: tbone321 on September 28, 2011,
Some people use a C7 or C9 bulb accross the string to do this and it tends to work much better than a resistor. 
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: holland lights on September 28, 2011,
I may need to use them, the controllers i built for last year, when it would be off, some of the leds would still have a little bit of a glow to them.
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: jnealand on September 29, 2011,
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I may need to use them, the controllers i built for last year, when it would be off, some of the leds would still have a little bit of a glow to them.

If you have v5 LEs you do not need them.
Title: Re: Does SSR4 with DMX option have snubbers?
Post by: holland lights on September 29, 2011,
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I may need to use them, the controllers i built for last year, when it would be off, some of the leds would still have a little bit of a glow to them.

If you have v5 LEs you do not need them.
I should of worded that differently, its controllers i designed myself. But this year in using lynx equipment.