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383 lines
15 KiB
383 lines
15 KiB
3 years ago
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(kicad_sch (version 20210621) (generator eeschema)
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(uuid 11cd2ff5-feed-4db2-af14-43763d29bc27)
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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 "power:GND" (power) (pin_names (offset 0)) (in_bom yes) (on_board yes)
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(text "Assumed heater is resistive heating\n wire fixed to battery with Kapton tape.\n\nHeating power should be in range of 1-4W.\n\nSuggested heating wire is Kanthal or Konstantan.\n\nWith nominal battery voltage of 3.7V,\n resistance of wire for 2W heating\n should be around 6.8R.\n\nFor uniform heat distribution there should be\n more then at least 20 turns of wire or more."
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)
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(text "Heating can operate in two modes.\nConstant current and Pulse mode.\n\nSelection of right mode depends on heating power.\nPulse is better suited for high power heating.\n\nCurrent limiting resistor for load switch must be\n adapted for each mode."
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