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Old 4th August 2012, 07:19 PM   #2081
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Default Power supply voltage

My B 1 with Salas Shunt have only 10 V out with 21 V in is this ok ? As well I thought it will be hot added big heatsinks. I can not feel any temperature rise at all !

Last edited by Erlend Sæterdal; 4th August 2012 at 07:33 PM.
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Old 6th August 2012, 01:56 AM   #2082
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What kind of thermometer should be used to measure the temperature of the mosfet tabs? I tried a digital lab thermometer, but I guess they really don't work unless they're immersed in liquid.
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Old 6th August 2012, 02:54 AM   #2083
Renron is offline Renron  United States
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Infra-Red gun.
Like this one. You'll find lots of other uses for one too.
Ron
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Old 6th August 2012, 03:22 AM   #2084
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Thanks - ordered one.
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Old 7th August 2012, 06:07 PM   #2085
suburra is online now suburra  Italy
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Hi Salas
I have a problem on my DCB1

I have just swap the output capacitors, before Elna Cerafine and now Nichicon ES

But now don't work: relè click, all led light up but the quintuplet, negative and positive

Could you help me?

Thank you

Marco

p.s. I'm on the way for shunt SIT
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Old 7th August 2012, 07:42 PM   #2086
Salas is offline Salas  Greece
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Meaning the 100uF output capacitors? I would fit the others back to check if the bipolars created some obscure issue.
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Old 7th August 2012, 07:58 PM   #2087
suburra is online now suburra  Italy
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Salas

Yes, are two 100uF output caps

Ok.. return to cerafine and report

Thanks for reply.
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Old 13th August 2012, 12:01 PM   #2088
suburra is online now suburra  Italy
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Salas

No good news...

I tried to return to Cerafine but, like before, the 2 strigs of 5leds don't light up...

Before swapping the capacitors, my DCB1 was perfect.

Maybe for desolder the Capacitors, can too much hot have damage some transistors?


Thanks in advance to everyone can help me.

Marco
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Old 13th August 2012, 12:03 PM   #2089
AndrewT is offline AndrewT  Scotland
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broken trace or shorted traces.
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Old 13th August 2012, 12:11 PM   #2090
suburra is online now suburra  Italy
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AndrewT,

I have looked many times the PCB

No shorted or broken traces

Thanks for reply

Marco
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