STMicroelectronics STM32G431RB / TI TMS320F280049C
48V 500W Pmsm Motor Drive Board
Overview
A compact 48V 500W 3-phase PMSM motor drive board featuring FOC control, triple-phase current sensing, and an FPGA/MCU interface for electric mobility applications.
Mit SabhadiyaSystem architecture
POWER
MCU
ACTUATOR
SENSOR
MODULE
- POWER_INPUT → POWER_CONVPowerSupplies main 48V DC bus to step-down regulators.
- POWER_INPUT → INVERTER_STAGEPowerHigh-voltage DC rail connected to the drain terminals of the high-side MOSFET bridge.
- POWER_CONV → MCU_FPGA_COREPowerSupplies regulated 3.3V power to the MCU and logic components.
- POWER_CONV → GATE_DRIVERPowerSupplies gate driver bias voltage.
- MCU_FPGA_CORE → GATE_DRIVERPWMPWM control signals for the 3-phase inverter bridge.
- MCU_FPGA_CORE → GATE_DRIVERSPIConfiguration and diagnostic interface for the smart gate driver.
- GATE_DRIVER → INVERTER_STAGEPowerGate drive signals controlling the 6 N-Channel MOSFETs.
- INVERTER_STAGE → CURRENT_SENSEPowerPhase output current routed through sense resistors.
- CURRENT_SENSE → GATE_DRIVERADCAmplified current sense outputs fed to internal op-amps and ADC.
- GATE_DRIVER → MCU_FPGA_COREADCCurrent feedback signals for FOC control loop.
- MCU_FPGA_CORE → COMMS_USB_UARTUARTUART telemetry and command interface.
- COMMS_USB_UART → POWER_INPUTUSBUSB host connection for configuration and real-time debugging.
Bill of materials
| Part number | Type | Component | Manufacturer | Package | Qty | Datasheet | Match |
|---|---|---|---|---|---|---|---|
| 63YXG220M10X16 | POWER | 48V DC Bench Power Supply Input with Bulk Capacitors Provides main 48V DC bus power with low-ESR electrolytic and ceramic decoupling capacitors for high ripple current filtering. | Multiple | — | 1 | Pending | |
2 alternatives consideredAI verified | |||||||
| LMR16006YDDCR | POWER | TI LMR16006 60V Step-Down Voltage Regulator Steps down 48V DC bus to 12V for gate drivers and 3.3V for MCU/FPGA logic. | Texas Instruments | SOT-6L | 1 | Matched | |
4 alternatives consideredAI verified | |||||||
| TMS320F280049C | MCU | STMicroelectronics STM32G431RB / TI TMS320F280049C Executes high-speed FOC control loops, generates PWM signals for gate drivers, and handles telemetry. | Multiple | — | 1 | Pending | |
3 alternatives consideredAI verified | |||||||
| BOOSTXL-DRV8323RS | ACTUATOR | TI DRV8323RS 60V Three-Phase Smart Gate Driver Drives the 3-phase MOSFET bridge with integrated current shunt amplifiers and protection features. | Texas Instruments | - | 1 | Matched | |
| BSC014N04LS | POWER | Infineon BSC014N04LS 40V N-Channel Power MOSFET x6 3-phase inverter bridge switching power to the 48V 500W BLDC motor. | Infineon | TDSON-8 FL | 6 | Matched | |
| WSLP25122L000FEA | SENSOR | Current Sense Resistors 2mΩ 2512 with In-Line/Low-Side Routing Senses phase or low-side currents for closed-loop FOC current feedback. | Vishay | 2512 | 3 | Matched | |
| FT232RL | MODULE | Silicon Labs CP2130 / FTDI FT232RL USB-to-UART Bridge Provides isolated or ESD-protected USB and UART communication interface with host PC for tuning and monitoring. | Silicon Labs | — | 1 | Pending | |
1 alternatives consideredAI verified | |||||||
Build guide
6-8 hoursAdvanced
1
Procurement & Preparation
- Source and inventory all raw components according to the BOM, including the TMS320F280049C MCU, TI DRV8323RS gate driver, Infineon BSC014N04LS MOSFETs, 63YXG220M10X16 bulk capacitors, LMR16006YDDCR regulator, WSLP25122L000FEA current sense resistors, and FT232RL USB-to-UART bridge.
- Prepare the PCB stencil and inspect the 4-layer power board Gerber files for proper thermal relief, 2oz copper thickness on high-current power traces, and clearance around the 48V bus and 3-phase inverter layout.
2
Hardware Assembly & Wiring
- Apply Type 4 lead-free solder paste to the PCB using the laser-cut stainless steel stencil, ensuring clean aperture release on all fine-pitch IC pads and power stages.
- Pick and place all surface-mount components, placing the LMR16006YDDCR regulator, TMS320F280049C MCU, FT232RL bridge, DRV8323RS gate driver, six Infineon BSC014N04LS power MOSFETs, three WSLP25122L000FEA current sense resistors, and passive decoupling components.
- Reflow solder the populated board using a forced-convection reflow oven with a verified lead-free thermal profile (peak temperature 245-250°C).
- Manually solder through-hole components including the 63YXG220M10X16 bulk electrolytic capacitor, power terminal blocks, and motor phase output connectors.
3
Firmware Setup
- Connect the JTAG/SWD programmer to the TMS320F280049C debugging header on the board and establish communication via Code Composer Studio (CCS).
- Flash the base initialization firmware containing the LMR16006 power-up sequence, clock configurations, PWM generation timers, and ADC trigger synchronization for current sensing.
- Integrate and flash the Field-Oriented Control (FOC) motor control software library, configuring PI current loop gains, space vector modulation (SVM), and feedback scaling for the 2mΩ WSLP25122L000FEA current sense resistors.
4
Testing & Calibration
- Perform a smoke test and quiescent current check using a 48V DC bench power supply with current limiting enabled. Verify output of the LMR16006 regulator (3.3V and 12V rails).
- Test the USB-to-UART communication bridge by connecting the board to a host PC via the FT232RL interface, and verify telemetry streaming using real-time monitoring software.
- Connect a target 48V 500W PMSM motor to the phase outputs (Phase_U, Phase_V, Phase_W) and execute motor ID, open-loop spin test, and closed-loop FOC tuning.
Document
48V 500W Pmsm Motor Drive Board
A compact 48V 500W 3-phase PMSM motor drive board featuring FOC control, triple-phase current sensing, and an FPGA/MCU interface for electric mobility applications.
Design Overview
| Item | Details |
|---|---|
| Product Type | 3-Phase Pmsm Motor Drive Board |
| Key Functions | FOC control for 48V 500W BLDC motor, 3-phase current sensing, FPGA/MCU control loop interface, UART/USB host communication |
| Power Source | 48V DC bench power supply |
| Connectivity | UART, USB |
| Size | Under 50x50 mm |
| Environment | indoor |
| Difficulty | Advanced |
| Est. Time | 6-8 hours |
System Architecture
Power Topology: Power flows from a 48V DC bench supply through a bank of low-ESR electrolytic and ceramic decoupling capacitors directly into the 3-phase MOSFET inverter bridge. A high-voltage step-down regulator (TI LMR16006) converts the 48V bus down to 12V for the gate driver IC and 3.3V for the MCU logic and peripheral circuits.
Module List
| Module ID | Type | Name | Function | Voltage |
|---|---|---|---|---|
| POWER_INPUT | POWER | 48V DC Bench Power Supply Input with Bulk Capacitors | Provides main 48V DC bus power with low-ESR electrolytic and ceramic decoupling capacitors for high ripple current filtering. | 48V |
| POWER_CONV | POWER | TI LMR16006 60V Step-Down Voltage Regulator | Steps down 48V DC bus to 12V for gate drivers and 3.3V for MCU/FPGA logic. | 12V / 3.3V |
| MCU_FPGA_CORE | MCU | STMicroelectronics STM32G431RB / TI TMS320F280049C | Executes high-speed FOC control loops, generates PWM signals for gate drivers, and handles telemetry. | 3.3V |
| GATE_DRIVER | ACTUATOR | TI DRV8323RS 60V Three-Phase Smart Gate Driver | Drives the 3-phase MOSFET bridge with integrated current shunt amplifiers and protection features. | 12V |
| INVERTER_STAGE | POWER | Infineon BSC014N04LS 40V N-Channel Power MOSFET x6 | 3-phase inverter bridge switching power to the 48V 500W BLDC motor. | 48V |
| CURRENT_SENSE | SENSOR | Current Sense Resistors 2mΩ 2512 with In-Line/Low-Side Routing | Senses phase or low-side currents for closed-loop FOC current feedback. | Analog |
| COMMS_USB_UART | MODULE | Silicon Labs CP2130 / FTDI FT232RL USB-to-UART Bridge | Provides isolated or ESD-protected USB and UART communication interface with host PC for tuning and monitoring. | 3.3V / 5V |
Key Components
4/7 modules matched to real parts. See the BOM tab for the full component table.
48V DC Bench Power Supply Input with Bulk Capacitors (63YXG220M10X16)
Web recommendation: 63YXG220M10X16 (not in ES)
TI LMR16006 60V Step-Down Voltage Regulator (LMR16006YDDCR)
Candidate 5 (LMR16006YDDCR) matches the primary MPN LMR16006 with a valid ordering suffix for the SOT-23-6 (DDC) package
STMicroelectronics STM32G431RB / TI TMS320F280049C (TMS320F280049C)
Rejected weak/wrong-class catalog hits; using web recommendation: TMS320F280049C
Infineon BSC014N04LS 40V N-Channel Power MOSFET x6 (BSC014N04LS)
The candidate's MPN matches the primary MPN for the Infineon BSC014N04LS N-Channel Power MOSFET.
Silicon Labs CP2130 / FTDI FT232RL USB-to-UART Bridge (FT232RL)
Web recommendation: FT232RL (not in ES)
Build Summary
- Difficulty: Advanced
- Estimated time: 6-8 hours
- Tools required: Antistatic tray, Component counter, Digital microscope, Stencil printer, Squeegee, Pick-and-place machine
See the Build tab for the full step-by-step assembly guide.
Generated by YuanQi AI Design System · Query: 3-phase PMSM motor drive board for a 48V, 500W BLDC motor with FOC control, current sensing on all three phases, and an FPGA/MCU interface for the control loop.