ELogs/Electronics: Difference between revisions
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=== Power supply board === | === Power supply board === | ||
'''Ready for experimental visit to Trento, 28th September 2025''' | |||
* Power distribution board required for QuARC. | * Power distribution board required for QuARC. | ||
| Line 25: | Line 27: | ||
** Potential for USB-C PD to drop out when voltage renegotiated? | ** Potential for USB-C PD to drop out when voltage renegotiated? | ||
=== DDC Photodiode Board Rev.F === | |||
'''Upon completion of power distribution board''' | |||
* Remove '''RESET''' connection from '''CC2''' pin on '''all''' DDC board USB-C connections | * Remove '''RESET''' connection from '''CC2''' pin on '''all''' DDC board USB-C connections | ||
* Resize DDC board to accept [https://www.hamamatsu.com/jp/en/product/optical-sensors/photodiodes/si-photodiode-array/si-photodiode-array/S12362-021.html Hamamatsu S12362 16-element photodiode array] in place of [https://www.hamamatsu.com/jp/en/product/optical-sensors/photodiodes/si-photodiodes/S12915-16R.html Hamamatsu S12915-16R single photodiodes] | |||
* Reduces pitch from 3mm to 2.5mm | |||
* 2 photodiode arrays per DDC board (2 x 16 element arrays = 32 channels) | |||
=== Scintillating Fibre Profile Monitor Front-end Boards === | |||
'''Upon completion of Rev.F board''' | |||
* Integration of scintillating fibre profile monitor based on [https://indico.physi.uni-heidelberg.de/event/1125/ design from Blake Leverington, University of Heidelberg] | |||
* Hamamatsu S17285 photodiode arrays to couple to scintillating fibres | |||
* Interface board needed between USB-C connection from FPGA and photodiode arrays | |||
* Acquire data; distribute timing signals | |||
== Imperial == | == Imperial == | ||
Revision as of 15:44, 28 July 2025
Electronic Log for Electronics Development
Oxford
Power supply board
Ready for experimental visit to Trento, 28th September 2025
- 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 between input power supplies?
- Ensure both power outputs stable: no drop-outs!
- Potential for USB-C PD to drop out when voltage renegotiated?
DDC Photodiode Board Rev.F
Upon completion of power distribution board
- Remove RESET connection from CC2 pin on all DDC board USB-C connections
- Resize DDC board to accept Hamamatsu S12362 16-element photodiode array in place of Hamamatsu S12915-16R single photodiodes
- Reduces pitch from 3mm to 2.5mm
- 2 photodiode arrays per DDC board (2 x 16 element arrays = 32 channels)
Scintillating Fibre Profile Monitor Front-end Boards
Upon completion of Rev.F board
- Integration of scintillating fibre profile monitor based on design from Blake Leverington, University of Heidelberg
- Hamamatsu S17285 photodiode arrays to couple to scintillating fibres
- Interface board needed between USB-C connection from FPGA and photodiode arrays
- Acquire data; distribute timing signals