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  • drfonz

    Alfonso Ferrandez

    drfonz

    4 Followers

    1 Project

  • titufrfff

    Titufrfff

    titufrfff

    1 Follower

    6 Projects

  • garfgarf

    Griffin Mackenzie

    garfgarf

    1 Follower

    0 Projects

  • dede1966

    # Calculations for OCP LM358 with 4x 10mOhm shunts r_shunt_total = 0.010 / 4 # 4 pieces of 10mOhm in parallel v_thresh_egs002 = 0.5 # IFB threshold voltage # At 20A v_shunt_20a = 20 * r_shunt_total gain_20a = v_thresh_egs002 / v_shunt_20a # At 100A v_shunt_100a = 100 * r_shunt_total gain_100a = v_thresh_egs002 / v_shunt_100a print(f"R shunt total: {r_shunt_total} Ohm") print(f"V shunt at 20A: {v_shunt_20a} V -> Required Gain: {gain_20a}") print(f"V shunt at 100A: {v_shunt_100a} V -> Required Gain: {gain_100a}") # If trimpot is Rf = 20k max, and Rg is the resistor to ground: # Gain = 1 + (Rf / Rg) # For max current 100A (Gain = 2), if Rf is adjusted down: 2 = 1 + (Rf_min / Rg) -> Rf_min = Rg # For min current 20A (Gain = 10), Rf is at max (20k): 10 = 1 + (20000 / Rg) -> 9 = 20000 / Rg -> Rg = 20000 / 9 rg_ideal = 20000 / 9 print(f"Ideal Rg: {rg_ideal} Ohm")

    dede1966

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  • superfeldy

    Max Feldman

    superfeldy

    0 Followers

    2 Projects

  • mrfadum

    mrfadum

    mrfadum

    0 Followers

    5 Projects

  • shravan-rfr

    shravan-rfr

    shravan-rfr

    0 Followers

    6 Projects

  • omarfirdaus

    OmarFirdaus

    omarfirdaus

    0 Followers

    8 Projects

  • norf

    Norf

    norf

    0 Followers

    4 Projects

  • enorfelt

    enorfelt

    enorfelt

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  • denmarfazizalingasa

    DenmarfAzizAlingasa

    denmarfazizalingasa

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  • andymarfer

    AndyMarfer

    andymarfer

    0 Followers

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  • surferdude

    surferdude

    surferdude

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    3 Projects

  • aduakorful

    Jeffery Akorful

    aduakorful

    0 Followers

    7 Projects

  • perfectionalist

    Perfectionalist

    perfectionalist

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    14 Projects

  • littlemasterfun

    littlemasterfun

    littlemasterfun

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  • derfster83

    frederick skeens

    derfster83

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    5 Projects

  • e

    erfan0itachi

    erfan0itachi

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    4 Projects

  • drfail

    DrFail

    drfail

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    2 Projects

  • carfile

    Janis Kluss

    carfile

    0 Followers

    7 Projects

  • onperformance

    Oliver

    onperformance

    0 Followers

    1 Project

  • iirfanshahh97

    iirfanshahh97

    iirfanshahh97

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  • solderforge

    solderforge

    solderforge

    0 Followers

    11 Projects

  • fencerfixer

    fencerfixer

    fencerfixer

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    7 Projects

  • ladyslverfyr

    ladyslverfyr

    ladyslverfyr

    0 Followers

    5 Projects