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Wondom DSP Kernel Board APM 2 - Power Supply ?

SigmaDSP & SigmaStudio holger75 Mar 12, 2022 00:00 2 replies Original on forum ↗
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holger75 Question
Mar 12, 2022 00:00

Hello, have a maybe stupid question concerning a power supply for the APM 2 Board.

Reason, I have connected a 5 Volts power supply to the APM 2 and the unit "smoked off", means, it got hot and now if not functional any more.

Normally I use the USB C connector to power the unit, but would like to implement a different power supply to build it into a housing. So I used the two pins labelled "VIN" and "GND" on the connector where the analog ins and outs are present and it happened. I ordered two more units, but before trying it again, I would like to ask if it is the correct way to power the unit externally or if somebody maybe ha s the right solution to do so ?

These where the pins I used, top right GND/VIN:

Many thanks in advance for any support.

Holger

power supply apm 2

VIN.jpg
VIN.jpg
holger75 Reply
Mar 13, 2022 00:00

This is done. Tried another Wondom DSP and there it worked fine with 5 Volt on VIN as described. So made a mistake on the first one most probably.

DaveThib Reply
May 5, 2022 00:00

Hello Holger,

Glad you worked it out. We do not support this board so you really need to ask Wondom about it. However, I do have experience with them. They do not respond with any meaningful information and will not supply a schematic. So I guess you get what you pay for. Note, that I have used these boards as well, they are low cost but it is difficult to do any customization without schematics. I even told them I worked for ADI and supported these SigmaDSPs and that got me nowhere.

These guys seem to be much better at support:

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Dave T