techmannih/nema34-mounted-stepper-controller
A 48 V USB‑C PD 3.1 EPR NEMA‑34 stepper controller PCB combining STM32/TMC5160 control, external MOSFET motor bridges, protected power and regenerative braking, USB data, telemetry, diagnostics, status LEDs, and buzzer alarms.
- Version
- 0.3.92
- License
- unset
- Stars
- 1
engineering/power-eco-simulation/results.json
{
"source_sha256": "51fae7ba95264851e1ccc3f17c060cd151ebb6e01e5452a80e31cf61ec6a67b7",
"model_type": "behavioral transient screen",
"hardware_qualified": false,
"simulator_version": "stderr Warning: can't find the initialization file spinit.\nstdout ******\nstdout ** ngspice-45.2 shared library\nstdout ******\nstdout ******\nstdout ** ngspice-45.2 : Circuit level simulation program\nstdout ** Compiled with KLU Direct Linear Solver\nstdout ** The U. C. Berkeley CAD Group\nstdout ** Copyright 1985-1994, Regents of the University of California.\nstdout ** Copyright 2001-2025, The ngspice team.\nstdout ** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\nstdout ** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\nstdout ******",
"model_sha256": "8b2689a49e2755220df53fe58eb413b214f48b5f73ef973ed7127551e77d8bf8",
"audit_parameters_sha256": "30fed668dc043ad1fc417daae40af5ad7b791992826bb89060f6dce02d91c468",
"assumptions": [
"100% prescribed energy return; no full motor/bridge model",
"10 mOhm bank ESR assumption; no capacitor ripple or thermal qualification",
"2.2 uF lumped input capacitance, 100 mOhm source/cable resistance; revised input cases use 250 mA upstream, old reference uses 100 mA; not measured",
"Ideal eFuse current envelope omits finite response, thermal shutdown and PD source dynamics",
"Winding corner starts at maximum cutoff; 100 ns sensor lag is assumed; separate 100 us recovery begins at a 48 V sense state",
"Restricted rotor cases impose 15 rpm rotor energy over 100 us; other winding cases exclude mechanical energy",
"Brake cable inductance/clamp transient is a separate screen, not in the bus models"
],
"cases": [
{
"parameters": {
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"kind": "winding",
"brake": true,
"initial": 53.20754716981132,
"current": 3.7811965956560467,
"on": 52.04050000000001,
"off": 51.393040000000006
},
"normal": {
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"bus_min_v": 51.39263029390751,
"bus_final_v": 51.44368261033237,
"first_55v_s": null,
"first_60v_s": null,
"rows": 82972,
"brake_peak_a": 5.313227254347423,
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"brake_energy_j": 0.13396269088768312,
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"injected_rotor_energy_j": 0.0,
"energy_residual_j": 9.252593083682325e-07,
"diode_energy_j": 0.0012662027506267167,
"esr_energy_j": 8.3874096459086e-05,
"switch_energy_j": 0.0004045673264808027,
"remaining_winding_energy_j": 3.3861206249322206e-11
},
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"brake_energy_j": 0.1339625281778425,
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},
"refinement_difference_v": {
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"bus_min_v": 9.870365886399668e-06
}
},
{
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"current": 4.010360025695807,
"on": 52.64373394120547,
"off": 52.14691389636242,
"name": "winding_corner_brake",
"brake": true
},
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},
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},
"refinement_difference_v": {
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{
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"name": "winding_corner_open",
"brake": false
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"switch_energy_j": 2.775123467994521e-25,
"remaining_winding_energy_j": 7.387688564307243e-14
},
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"bus_min_v": 53.90607094655636,
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"first_55v_s": 0.0001391133682393803,
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"refinement_difference_v": {
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{
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"name": "commissioning_corner_open",
"brake": false
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{
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"bus_max_v": 9.014750299485286e-05,
"bus_min_v": 9.57811607804615e-12
}
},
{
"parameters": {
"name": "rotor_1000rpm_open",
"kind": "regen",
"cap": 0.000752,
"brake": false
},
"normal": {
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"bus_min_v": 47.99999993565701,
"bus_final_v": 65.9177205616846,
"first_55v_s": 0.004908898468574698,
"first_60v_s": 0.008909212358903079,
"rows": 30011,
"brake_peak_a": 6.666004551616644e-11,
"brake_peak_w": 4.443561668217382e-09,
"brake_energy_j": 1.0758814992058473e-10,
"capacitor_energy_change_j": 0.7674708524348829,
"injected_energy_j": 0.7676005861171168,
"bank_ripple_rms_a_over_run": 0.6570550946798706,
"esr_energy_j": 0.00012951636941032125,
"switch_energy_j": 3.2491621276016592e-24,
"energy_residual_j": 2.1720523541939973e-07
},
"fine": {
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"bus_min_v": 47.999999935650806,
"bus_final_v": 65.91807667182289,
"first_55v_s": 0.004908612448793297,
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"rows": 60011,
"brake_peak_a": 6.671214570699994e-11,
"brake_peak_w": 4.450510384831991e-09,
"brake_energy_j": 1.0741085017478089e-10,
"capacitor_energy_change_j": 0.7674885049069402,
"injected_energy_j": 0.7676182421093082,
"bank_ripple_rms_a_over_run": 0.6570647780739713,
"esr_energy_j": 0.00012952018695136673,
"switch_energy_j": 3.2438076752783764e-24,
"energy_residual_j": 2.1690800574964927e-07
},
"refinement_difference_v": {
"bus_max_v": 0.0003561348470100256,
"bus_min_v": 6.203038083185675e-12
}
},
{
"parameters": {
"name": "five_joules_20ms_stress",
"kind": "regen",
"energy": 5,
"cap": 0.000752,
"on": 52.04050000000001,
"off": 51.393040000000006
},
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"bus_min_v": 47.99999993562738,
"bus_final_v": 51.884143391052575,
"first_55v_s": 0.0019114718178952293,
"first_60v_s": 0.00371476792301979,
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"brake_peak_a": 6.13760649261023,
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"brake_energy_j": 4.838389351987408,
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"injected_energy_j": 4.9997699767724155,
"bank_ripple_rms_a_over_run": 1.7488038310799936,
"esr_energy_j": 0.0009174941955730025,
"switch_energy_j": 0.014611935843002006,
"energy_residual_j": -2.3395392993584563e-05
},
"fine": {
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"bus_min_v": 47.9999999356178,
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"first_55v_s": 0.0019115486300746148,
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"rows": 60011,
"brake_peak_a": 6.137596343946215,
"brake_peak_w": 376.70088881221943,
"brake_energy_j": 4.838510093090208,
"capacitor_energy_change_j": 0.1458533338216877,
"injected_energy_j": 4.999884992584446,
"bank_ripple_rms_a_over_run": 1.7487459628379352,
"esr_energy_j": 0.0009174334764570776,
"switch_energy_j": 0.014612300481132216,
"energy_residual_j": -8.168285038429729e-06
},
"refinement_difference_v": {
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"bus_min_v": 9.57811607804615e-12
}
},
{
"parameters": {
"name": "input_new_1x_corner",
"kind": "overload",
"ilim": 4.001781787357958,
"pulse": 1,
"upstream": 0.25
},
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"first_55v_s": null,
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"input_peak_a": 4.252358573848269,
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"first_5a_s": null,
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"above_5a_ms": 0.0,
"source_trip_s": null,
"load_uvlo_s": null
},
"fine": {
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"bus_final_v": 38.39027151064009,
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"input_peak_a": 4.252133135248357,
"efuse_peak_a": 4.001781787400001,
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"first_40v_s": 0.007382646595219238,
"above_5a_ms": 0.0,
"source_trip_s": null,
"load_uvlo_s": null
},
"refinement_difference_v": {
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"bus_min_v": 8.881784197001252e-13
}
},
{
"parameters": {
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"kind": "overload",
"ilim": 3.6072144288577155,
"pulse": 1,
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"load": 10,
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},
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"above_5a_ms": 0.0,
"source_trip_s": null,
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},
"fine": {
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},
"refinement_difference_v": {
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}
},
{
"parameters": {
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"ilim": 4.001781787357958,
"pulse": 1,
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"load": 10,
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},
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"input_peak_a": 4.252941733193225,
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"above_5a_ms": 0.0,
"source_trip_s": null,
"load_uvlo_s": null
},
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"bus_min_v": 34.837682114696506,
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"first_60v_s": null,
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"first_40v_s": 0.006190976624335149,
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},
"refinement_difference_v": {
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}
},
{
"parameters": {
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"kind": "overload",
"ilim": 4.477611940298507,
"pulse": 2
},
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"first_55v_s": null,
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"input_peak_a": 7.100000094245331,
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"first_40v_s": 0.03308727702975606,
"above_5a_ms": 25.38241947852034,
"source_trip_s": null,
"load_uvlo_s": null
},
"fine": {
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"bus_min_v": 8.492306743064859,
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"rows": 120012,
"input_peak_a": 7.100000094230339,
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"first_40v_s": 0.03308719519053336,
"above_5a_ms": 25.382588632257693,
"source_trip_s": null,
"load_uvlo_s": null
},
"refinement_difference_v": {
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"bus_min_v": 0.0015527468869009908
}
}
],
"checks": {
"healthy_winding_corner_plus_0p5v_allocation_below_55v": true,
"commissioning_open_winding_plus_0p5v_allocation_below_55v": true,
"new_steady_envelope_below_5a": true,
"new_10a_request_envelope_below_5a": true,
"restricted_rotor_and_winding_plus_0p5v_allocation_below_55v": true,
"old_2x_envelope_exceeds_5a": true,
"open_brake_at_1000rpm_remains_unsafe": true,
"unapproved_5j_20ms_load_remains_unsafe": true
},
"errors": [],
"deck_sha256": {
"commissioning_corner_open.cir": "ec5728578166be4442e933f06dfd59a75f16e90ea962589bb9488d5ac5f99110",
"five_joules_20ms_stress.cir": "ac0bae1f6c0a0497914af2099297ed7f950020e58b0fd63e9d5816823132cefd",
"input_new_1x_corner.cir": "cbf2e04e36dbde1538629148876328cba468e6dba7f39d07067fad8432aaefe5",
"input_new_1x_corner_10a.cir": "50254b028b74562dc29f4ff57e75dfc0b337495d0c1be7fca8ceb1cd1bc398ab",
"input_new_1x_nominal_10a.cir": "72154181e28f8a447d8087e7ef53825eb903f3c0414613bf4404e7c7eff3b8c4",
"input_old_2x_reference.cir": "bab8c0d7297fc00035c0d80bf3511903e44cc0ce58d03de25b2e21f6d9e851f2",
"restricted_open_with_rotor.cir": "831b5a10dee1ae85baae3d4387d5cfceae532536a975f9145b9b17588a97a63a",
"restricted_supply_loss_open.cir": "8f9b00a3cdd059df9c36c89fc635fb6fa6971a0f9fdd20e9d13fa8bd55dce41b",
"rotor_1000rpm_brake.cir": "e2642b4d35e59774868ee5cf5bae936defd45253b1ac148172d4b334c85350ba",
"rotor_1000rpm_open.cir": "6ee037a77c2ea7f496d2c6b8d34025965a6d4a5de48d35c23e8af29cba35e3d9",
"winding_corner_brake.cir": "22ff23af2bf04587c2f39beb55567f91a6a3b4a68dae13046a75b2c692030461",
"winding_corner_open.cir": "33f0d768c905ace9735a4201fe5385f6dcaa46eef8cfd6ab3e698b85f4cf8e6e",
"winding_corner_recovery_100us.cir": "c28bd0cad4f2178280edde51385f9ddd5bd07473250a1175740b298da019347b",
"winding_nominal_brake.cir": "5e0d87f3b7cb312698724d1a1b38c73fe09913c40a3c110d8c69cb95228aa08a"
}
}
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