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358 lines
14 KiB
358 lines
14 KiB
(kicad_sch (version 20210621) (generator eeschema)
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(paper "A4")
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(title_block
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(title "BUTCube - EPS")
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(date "2021-06-01")
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(rev "v1.0")
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(company "VUT - FIT(STRaDe) & FME(IAE & IPE)")
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(comment 1 "Author: Petr Malaník")
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)
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(lib_symbols
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(symbol "Mechanical:MountingHole" (pin_names (offset 1.016)) (in_bom yes) (on_board yes)
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(uuid b70e8a35-cff6-4734-884c-e411dcf5d5bf)
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(uuid 722b2a3c-24b1-4314-bc49-0c64c836db19)
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)
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(text "Power capabilities" (at 185.42 29.21 0)
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(effects (font (size 2 2) (thickness 0.4) bold) (justify left bottom))
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(uuid 29e65b12-d5b3-409b-b01d-336510e760b4)
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)
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(text "VBAT voltage range: 2.8-4.2V\nVBAT maximal current: 4A\n\n1.8V rail maximal current: 0.8A\n3.3V rail maximal current:\n VBAT bellow 3.3V (boost) - 0.8A\n VBAT above 3.3V (buck) - 1.2A\n5.0V rail maximal current: 1.2A\n\nMaximal shared current draw from battery: 5A\n"
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(uuid 333eb2cb-d65b-4e6a-845b-efb1efbc71c0)
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)
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(text "Each power supply has current monitoring stage.\nEach rail could be disabled by supervisor MCU.\nPower for supervisor MCU is handled by 3.3V power supply.\n"
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(at 185.42 80.01 0)
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(effects (font (size 1.27 1.27)) (justify left bottom))
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(uuid b8b0e794-d0fa-46a0-82e4-45da8cc0114a)
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)
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(text "Supervisor is powered even if 3.3V rail\n is disabled (PER_POWER - MCU_POWER).\nSo when supervisor disable 3.3V rail,\n his own power is still working.\nSupervisor has own separate power protection."
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(at 185.42 116.84 0)
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(symbol (lib_id "Mechanical:MountingHole") (at 262.89 158.75 0)
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(in_bom yes) (on_board yes) (fields_autoplaced)
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(effects (font (size 1.27 1.27)) (justify left top))
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(effects (font (size 1.27 1.27)) (justify left))
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(effects (font (size 1.27 1.27)) (justify right))
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