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- Find Lower Resistance Fuse (Voltage Drops in Power Path Selection)
Ideally with a smaller package size as well (the fuse could be old therefore having higher resistance?)
MINI 297 (ATM)
Fuse Holder: Keystone Electronics 3568 - Digikey Link
Fuses: LittleFuse Mini 297, or Cooper Bussmann ATM - Digikey Link
MICRO (ATR)
Fuse Holder: I can’t seem to find any dedicated ones, but the Keystone contacts for the Mini series (without the cover) should work but is not as elegant.
Fuses: LittleFuse Micro2 327 or Cooper Bussmann ATR - Digikey Link - Use only 2 parallel FETs for the power selection inputs (Power Path FETs Power Dissipation and Temp Rise)
- Find connector to replace screw terminal for easier assembly (not high priority)
TE ET Power, recommended per the Stanford Connector Selection document. We should stick with the Barrier Blocks or go with these I think:
Part numbers are on Pg 102 of this PDF: https://www.ttiinc.com/content/dam/ttiinc/manufacturers/te-connectivity/PDF/sg_tyco_ENG_CS_1773096_FULL_POWER_CATALOG_0512.pdf
Housing: https://octopart.com/1982299-1-te+connectivity-44516067?r=pap
Connector: https://octopart.com/2042274-1-te+connectivity-44516073
Crimps: https://www.digikey.ca/product-detail/en/te-connectivity-amp-connectors/927829-5/A122186CT-ND/5418209 - Add current sense to power supply input (instead of 0 ohm resistor)
Unless there was a good reason it was not there to start - Aux Switch Implementation (to completely turn off the car)
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- Refine Capacitor values for lowering the inrush current
- Reduce Gate Slew rate for DC-DC and Power Supply
- Verify DC-DC voltage limits for UV (keeping in mind inrush current and voltage drop while running at 17A)
- Check the AUX under-voltage time extension capacitor
- Fix voltage sense locations (so that it is not affected by inrush current from capacitor to capacitor)
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- Update temperature sense RC filter values
- Check with Aashmika to get the DC-DC temperature sense pinout correct
- Change 3V0 LDO to a non-QFN package
- Separate the AUX power and thermistor connectors
So we can do a higher current connector for power and a small footprint connector for sense
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