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[Rev0_1rc*] Swapped PD Monitor Diode Anaode and Cathode Connections on Both Types #2

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opened 2024-02-22 12:07:39 +08:00 by linuswck · 0 comments
linuswck commented 2024-02-22 12:07:39 +08:00
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Issue Description

Kirdy Adapter Hw Revision: rev0_1rc*
Kirdy Hw Revision: rev0_3:

This mistake is caused by the confusion on the interpretation on PD- and PD+ notations.
On Kirdy Mainboard, PD+(Cathode) and PD-(Anode) indicates by the intended voltage polarity on the PD Mon AFE Input
But on Kirdy Adapters, PD+(Anode) and PD-(Cathode) indicates by the usual diode terminals.

Kirdy Rev0_3:
image
Kirdy Adapter Type 1:
image
Kirdy Adapter Type 2:
image
Reference Pin Connections from ThorLabs:
image

Hot Fix Needed:

This fix should not affect the Pd Monitor Performance on Kirdy.
Type 1: Solder the jumper resistor and flywires in the following ways
PD Connections on Pin 7 & 8:
KIrdy_Adapter_Type1_PD34_HotFix
PD Connections on Pin 3 & 4:
KIrdy_Adapter_Type1_PD78_HotFix

Type 2: Cut copper trace of PD+, PD- and then swap the connections with flywire
KIrdy_Adapter_Type2_HotFix

Changes to be Made in Next Hw Revision:

Kirdy and Kirdy Adapter: Use PD_A and PD_K, LD_A and LD_K notations on schematics, schematics symbols and pcb silkscreen markings

# Issue Description Kirdy Adapter Hw Revision: rev0_1rc* Kirdy Hw Revision: rev0_3: This mistake is caused by the confusion on the interpretation on PD- and PD+ notations. On Kirdy Mainboard, PD+(Cathode) and PD-(Anode) indicates by the intended voltage polarity on the PD Mon AFE Input But on Kirdy Adapters, PD+(Anode) and PD-(Cathode) indicates by the usual diode terminals. Kirdy Rev0_3: ![image](/attachments/84e6691e-5fc6-4965-ba42-8090747f0d20) Kirdy Adapter Type 1: ![image](/attachments/e6eab1f5-a3a4-4453-89ae-d3bf375e88d7) Kirdy Adapter Type 2: ![image](/attachments/049c28f2-1aab-4c64-9ce1-616c8317634f) Reference Pin Connections from [ThorLabs](https://www.thorlabs.com/NewGroupPage9_PF.cfm?ObjectGroup_ID=1558): ![image](/attachments/2d49c497-4cb4-4fae-a4e2-f38a8e226310) # Hot Fix Needed: This fix should not affect the Pd Monitor Performance on Kirdy. Type 1: Solder the jumper resistor and flywires in the following ways PD Connections on Pin 7 & 8: ![KIrdy_Adapter_Type1_PD34_HotFix](/attachments/8ac3d488-5908-416c-9914-e905737bad0d) PD Connections on Pin 3 & 4: ![KIrdy_Adapter_Type1_PD78_HotFix](/attachments/c0639c19-3be3-4669-adc1-038561c523c7) Type 2: Cut copper trace of PD+, PD- and then swap the connections with flywire ![KIrdy_Adapter_Type2_HotFix](/attachments/9f09ecd3-54de-4b34-9852-b69a31bf48ad) # Changes to be Made in Next Hw Revision: Kirdy and Kirdy Adapter: Use PD_A and PD_K, LD_A and LD_K notations on schematics, schematics symbols and pcb silkscreen markings
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179 KiB
KIrdy_Adapter_Type1_PD34_HotFix.jpg
2.6 MiB
KIrdy_Adapter_Type1_PD78_HotFix.jpg
2.3 MiB
KIrdy_Adapter_Type2_HotFix.jpg
1021 KiB
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Reference: sinara-hw/kirdyAdapter#2
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