ELogs/Electronics: Difference between revisions
< ELogs
SimonJolly (talk | contribs) (Created page with "Electronic Log for Electronics Development == Oxford == === Power supply board === * Power distribution board required for QuARC. * Provide power for Raspberry Pi and DDC boards from single DC input: ** 5V/5A for Raspberry Pi via USB-C ** >7.5V (5A?) for DDC board daisy chain via 2.5mm barrel * Single USB-C PD input: 20V/5A ** Needs USB-C PD voltage negotiation chip * Fallback option with 20V DC 2.5mm barrel jack input * LEDs to indicate each voltage is provided co...") |
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Revision as of 15:24, 28 July 2025
Electronic Log for Electronics Development
Oxford
Power supply board
- Power distribution board required for QuARC.
- Provide power for Raspberry Pi and DDC boards from single DC input:
- 5V/5A for Raspberry Pi via USB-C
- >7.5V (5A?) for DDC board daisy chain via 2.5mm barrel
- Single USB-C PD input: 20V/5A
- Needs USB-C PD voltage negotiation chip
- Fallback option with 20V DC 2.5mm barrel jack input
- LEDs to indicate each voltage is provided correctly:
- 20V input
- 5V to Raspberry Pi
- >7.5V to DDC boards
- Should be able to switch off LEDs
- Necessary to switch off