First Commit

OneNote/OSD/PDB/5V Redundant - PMIC IC's.md

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+# [LTC4418](https://www.digikey.co.uk/product-detail/en/analog-devices-inc/LTC4418IUF-PBF/LTC4418IUF-PBF-ND/7796554)
+
+  
+
+- It is a prioritizer: --> prioritizes outputs based on priority
+- With external mosfets
+- - No current sharing possible, each input must be capable of delivering full load.
+- + easy to implement
+-

OneNote/OSD/PDB/Buck Converter Learnings.md

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+TI Course:
+
+[https://training.ti.com/common-mistakes-dcdc-components-features?context=1127730-1135482-1139329-1135477&cu=1135482](https://training.ti.com/common-mistakes-dcdc-components-features?context=1127730-1135482-1139329-1135477&cu=1135482)
+
+[https://www.ti.com/seclit/ml/slup384/slup384.pdf](https://www.ti.com/seclit/ml/slup384/slup384.pdf)

OneNote/OSD/PDB/Learnings.md

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+- Use on board fuses to separate different circuits from each other. Eg. 7.4V regulator from 5V regulator
+- If you know that you're going to use certain signals, make a connector for them, not testpoint holes for cables --> saves a lot of time
+- Edgeplated pads work well for large currents, could also be in the middle of the board, no need to have them at the edge
+-

OneNote/OSD/PDB/Tests V0.1.md

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+Add max load to dc-converters:
+
+- Observe temperature with thermal camera
+- Observe signals from dc-dc converters -- sw-node, input, output ripple, etc.

OneNote/OSD/PDB/V0.1.md

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+Precise TODOS:
+
+  
+
+**Requirements**
+
+- [ ] Battery protection & redundancy
+
+- [ ] Battery status communication (load cycles, current, remaining capacity, current voltage
+
+- [ ] 5V source for carrier board

OneNote/OSD/PDB/V0.2.md

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+- [ ] Add on-board fuses to separate several subcircuits. In case of failure not the entire board stops working
+
+- [ ] Solution for excess energy release (some sort of valve) e.g. regenerative breaking usually releases reverse currents into the batteries, but in our case it is blocked because of the ideal diodes. Compare [this manual](https://files.zubax.com/products/io.px4.sapog/Sapog_v2_Reference_Manual.pdf) page 12/39.
+
+Battery:
+
+Is it possible to have ideal diode and still use reverse currents?