Compact FOC BLDC Motor Controller Design

flux

0:00

The session has ended.
Work completed:
  • Project description and “System Architecture” mermaid diagram updated.
  • All major ICs (STM32WB55, STUSB4500, DRV8353S, TPS56339), MOSFETs, sense amps, sensors, connectors, protection, and passives were added and configured.
  • Nets between MCU, gate drivers, MOSFETs, Hall sensors, shunts, buck converter, and USB-C PD controller have been fully wired.
  • BOM finalized, footprints assigned, 4-layer stackup selected, board size set (60×40×1.6 mm), and mounting holes placed.
Tasks that I cannot automate in this session:
  • Assign inner layers as power/ground planes and configure ground fills.
  • Place and arrange components on the PCB.
  • Route all nets (power loops, signal, RF/analog isolation).
  • Perform ERC/DRC, power-integrity, and thermal review on the routed layout.
Success criteria status:
  • Schematic supports dual-motor Hall-sensor FOC control, BLE telemetry, and USB-C PD 12 V input: ✅
  • BLE telemetry and PD protection circuits included: ✅
  • Board footprint and thermal/layout strategy defined: ✓ (stackup and dimension set, but routing/thermal pours pending)
Next steps: you’ll need to assign planes, place parts, route traces, and review the PCB to fully meet the thermal-performance and manufacturability criteria.
192 days
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U5 VIN - C2 P1
U1 GLB - Q2 G1
U1 DVDD - U4 V+
Q3 SH2 - J4 PIN3
U4 -IN - GND GND
U2 VBUS_EN_SNK - U5 EN
U4 -IN - GND GND
Q6 SH2 - J5 PIN3
Q2 SH2 - J4 PIN2
U4 -IN - GND GND
U1 GHB - Q2 G2
U1 GHC - Q3 G2
U4 -IN - GND GND
Q5 SH2 - J5 PIN2
Q4 SH2 - J5 PIN1
U4 -IN - GND GND
U1 GHA - Q1 G2
U1 GHC - Q3 G2
U4 -IN - GND GND
U1 GLA - Q1 G1
U1 GLA - Q1 G1
U1 GLC - Q3 G1
U4 -IN - GND GND
U1 GLB - Q2 G1
U4 -IN - GND GND
U2 VBUS_EN_SNK - U5 EN
U1 GHB - Q2 G2
J3 CC1 - U2 CC1
U4 -IN - GND GND
U1 GLC - Q3 G1
U1 GHA - Q1 G2
Q1 SH2 - J4 PIN1
U4 -IN - GND GND
Q1
Not Recommended for New Designs
MH3
U1
Q4
Not Recommended for New Designs
Q6
Not Recommended for New Designs
U2
MH4
Q5
Not Recommended for New Designs
Q3
Not Recommended for New Designs
Q2
Not Recommended for New Designs
MH2
U2
GND
GND
  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
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    Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
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    A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
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  • Generic Capacitor
    Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
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  • Terminal
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Boiling Magenta Neuralizer

Boiling Magenta Neuralizer thumbnail
Boiling Magenta Neuralizer: Dual Motor BLDC FOC Driver with BLE Telemetry and USB‑C PD Input

Properties

Standard 4 Layer

graph LR subgraph Power USB_PD(("USB-C PD 12V Controller")) BulkPwr(("Power Tree")) Prot(("Protection Subsystems")) end subgraph Control MCU(("Control MCU/SoC")) end subgraph Motor1 PS1(("3-Phase Power Stage 1")) Hall1(("Hall Sensor Inputs 1")) end subgraph Motor2 PS2(("3-Phase Power Stage 2")) Hall2(("Hall Sensor Inputs 2")) end USB_PD --> BulkPwr BulkPwr --> Prot Prot --> MCU BulkPwr --> MCU BulkPwr --> PS1 BulkPwr --> PS2 MCU --> PS1 MCU --> PS2 Hall1 --> MCU Hall2 --> MCU

60

mm

1.6

mm

40

mm

Pricing & Availability

Distributor

Qty 1

Arrow

$21.73–$29.42

Digi-Key

$23.05–$28.93

LCSC

$33.37

Mouser

$41.93

TME

$15.75

Verical

$16.44–$29.99

Controls