mirror of
https://github.com/uw-midsun/hardware.git
synced 2024-11-23 07:05:05 +00:00
7501118c5b
* Add BTS7120-2EPA schematic and footprint * Add light load driver * Save * Save * Save * 24/07/2019 Done: -Power distribution board is now split into front and rear -A power path channel for power supply is implmented -Reverse polarity protection for the power supply channel is added -Aux battery over current protection is added -Back to back MOSFET is changed -Protected and unproteced rail is now determined bt firmware -Removed unprotected rail -Added calculations for new under and over voltage condiction for the power path, including AUX and DCDC -Added calculation for AUX battery fault delay time To do: -Validify AUX over current protection -Validify power supply reverse polarity protection -Add AUX battery charger -Concider switching connector and load switch for higher current rating * Schematic changes RearPowerDistribution -Rear Power Distribution now have multiple rear light load switch and connectors to power each rear light individualy -Changed the high current load switch to a lower 15A rating single channel -Added a medium current load switch with 4.5A rating -Reassigned loads to matching load switchs that can supply the load with required current based on MSXIV_PowerBuget Sheet -Reassigned load switch pin-outs according to the load reassignment -Added multi-channel schamatics for repeated design like load switch and ADC -Added one extra I/O expander for enabling lights -Deleted calculation notes, it is now recorded within a DOC -Added a MUX for current sense selection -Finalized power supply reverse polirity protection -Finalized AUX over current protection -AUX over current comparitor comes with a latching feature witch can keep the AUX circuit open during over current event -Hysteresis not implemented -A jumper to 3V3 is also connected to the latching enable pin, populate if the feature is not good, it will function as a comparitor FrontPowerDistribution -None Libery alternation -Added symbols and footprints for Infineon smart loadswitchs of 15A,11A, and 4.5A -Added symbol and footprint for Latching comparitor * Rear Power Distribution -Changed load connectors to avoid misconnection on major loads: -BMS -Motor Interface -Rear Lights Added libs -IC COMP TTL/CMOS 1 CHAN SC70-6 -IC LOAD SWITCH BTS 7200-2EPA PG-TSDS0-14-1 -IC LOAD SWITCH BTS 70401EPA PG-TSDS0-14-22 -IC LOAD SWITCH BTS 70041EPPXUMA1CT-ND_1 -IC LOAD SWITCH BTS 70081EPPXUMA1 -RES SMD 48.7 Kohms 0.1% -RES SMD 11.3 Kohms 0.1% * Realocated the load switch and connector to one sheet * -Fixed symbol and footprint -Fixed Schematic nets -Started PCB layout * generated gerber files and finished pcb layout
2 lines
29 B
Plaintext
2 lines
29 B
Plaintext
4 Wire SPI=MOSI,MISO,SCK,CSn
|