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#1
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Blown Talon SR
After finishing the basic wiring, we thought we should test if everything lights up correctly. Turn on the robot and BOOM! A muffled explosion and a smell of peanut butter. Turns out one of our Talon SRs blew up. We thought it was the internal capacitor and after searching a bit, we found that more people recognized the same peanut butter smell, which confirms our theory.
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#2
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Re: Blown Talon SR
Peanut butter? People think it strange that I associate the smell of burning resin flux with home (my dad was an avid ham radio builder and operator), but I have never associated the smell of a shorted electrolyte with anything I would even remotely want to eat.
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#3
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Re: Blown Talon SR
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#4
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Re: Blown Talon SR
We had one of our KOP Talon's from this year, that blew about 10 seconds after we turned power on for the first time. We check wiring, all 3 inches of it back to the PDP, was fine. So I decide to look into it, and found that the capacitor was installed backwards.
Capacitors this size have cut marks on the top to open to allow venting in case of over voltage, or reverse voltage. With this capacitor's top up againts the heatsink, these vent couldn't pop up and open, so the cap blew out the side wall. |
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#5
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Re: Blown Talon SR
Those remind me of Igor Pravagada, who spent many years experimenting with ways to filter High Voltage AC with polarized electrolytic capacitors. He is credited as the inventor of the electronic confetti generator.
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#6
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Re: Blown Talon SR
Found a capacitor to replaced the one in our blown Talon.
UHE1V102MHD6 - Digikey has stock (FIRST Supplier!!!) Their stock # 493-1589-ND I have been running this repaired Talon all morning and have had no problems. |
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#7
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Re: Blown Talon SR
Is that repair first legal?
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#8
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Re: Blown Talon SR
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#9
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Re: Blown Talon SR
R55:
Quote:
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