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GB: Round #4; Fo-Felix & GB #1 AC Receptacle Enclosure
GB: Round #4; Fo-Felix & GB #1 AC Receptacle Enclosure
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Old 14th March 2019, 10:51 PM   #11
dewdrop is offline dewdrop  Singapore
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GB: Round #4; Fo-Felix & GB #1 AC Receptacle Enclosure
I will do that later but need to decouple the wiring from the 2 boards. What is the expected DC resistance?
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Old 14th March 2019, 11:23 PM   #12
dewdrop is offline dewdrop  Singapore
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GB: Round #4; Fo-Felix & GB #1 AC Receptacle Enclosure
Have the 2 boards connected in parallel, I have the DC resistance of 55.5k ohm at the input. Is that correct?
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Old 15th March 2019, 02:14 AM   #13
dewdrop is offline dewdrop  Singapore
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GB: Round #4; Fo-Felix & GB #1 AC Receptacle Enclosure
Ok, we have a 110K resistor across the L and N and if I have 2 boards in parallel, it will be a combined of ~55 Kohms. Assuming if it draws 90mA, wouldn't the power dissipation be huge on these 2 resistors?
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Old 15th March 2019, 05:14 AM   #14
leejh is offline leejh  United States
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Let me in 8 pcs. Thanks
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Old 15th March 2019, 05:27 PM   #15
Destroyer OS is offline Destroyer OS  United States
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GB: Round #4; Fo-Felix & GB #1 AC Receptacle Enclosure
Quote:
Originally Posted by dewdrop View Post
Ok, we have a 110K resistor across the L and N and if I have 2 boards in parallel, it will be a combined of ~55 Kohms. Assuming if it draws 90mA, wouldn't the power dissipation be huge on these 2 resistors?
As long as your resistors are in the K range, everything seems fine.

The thing about capacitors is they release the energy they store. So the loss is very small, even if there is some current use.
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Old 16th March 2019, 04:08 AM   #16
Destroyer OS is offline Destroyer OS  United States
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GB: Round #4; Fo-Felix & GB #1 AC Receptacle Enclosure
Looks like we hit 32. I am going to wait a little bit before collecting, as there’s always someone else interested that misses the initial. But I always print more than the GB amount needed, so there’s more after the first contributors - but people often don’t think so.
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Old 16th March 2019, 05:20 AM   #17
dewdrop is offline dewdrop  Singapore
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GB: Round #4; Fo-Felix & GB #1 AC Receptacle Enclosure
What is the purpose of having the 110K resistor across the L and N? Also, isnt 1W low given its across the mains inputs?
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Old 16th March 2019, 05:53 AM   #18
Destroyer OS is offline Destroyer OS  United States
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GB: Round #4; Fo-Felix & GB #1 AC Receptacle Enclosure
It’s to discharge the capacitors whenever you disconnect the device. Otherwise they can hold a bit of a snap for you. If you have 8 Fo-Felix’s it’s a pretty good snap. Wattage was calculated. 110k is pretty high resistance.
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Old 16th March 2019, 01:54 PM   #19
drpro is offline drpro  United States
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GB: Round #4; Fo-Felix & GB #1 AC Receptacle Enclosure
Jeremy please include me for 4 boards.
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Old 16th March 2019, 04:33 PM   #20
MtBiker is offline MtBiker  United States
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I would like 6 boards please.
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