Getting started with the RDGD3100I3PH5EVB

2.1 Board features

• Capability to connect to HP Drive IGBT modules for full three-phase evaluation and development
• Daisy chain SPI communication (three high-side and three low-side gate drivers)
• A power supply which is jumper configurable for VEE negative or GND reference
• Easy access power, ground, and signal test points
• 2×32 PCIe socket for interfacing MCU control
• Optional connection for DC bus voltage monitoring
• Compatible with MPC5777C- DEVB

2.2 Board description

The RDGD3100I3PH5EVB is a fully functional three-phase inverter evaluation board populated with six GD3100 gate drivers with fault management and supporting circuitry. This board supports SPI daisy chain communication for programming and communication with three high-side gate drivers and three low-side gate drivers independently.

This board has low-voltage and high-voltage isolation in conjunction with gate drive integrated galvanic signal isolation. Other supporting features on the board include desaturation short-circuit detection, IGBT temperature sensing, DC Link bus voltage monitoring, phase current sensing, and motor resolver excitation and signal processing connection circuitry. See GD3100 data sheet for additional gate drive features.

2.3 Board components

Overview of the RDGD3100I3PH5EVB three-phase inverter reference design

2.4 Additional board support

Refer to UM11178 - RDGD3100I3PH5EVB three-phase inverter reference design user manual for additional details on the featured components.

3.1 Configuring the hardware

To configure the hardware, complete the following procedure:

1. Assemble IGBT module with a water cooling jacket if desired and properly attach to DC-Link capacitor positive and negative high-voltage supply connections across U, V, and W phases
2. Attach RDGD3100I3PH5EVB to the IGBT module. Ensure that all board socket connection pins are properly seated onto the IGBT pin connections. The board socket pins are intended for easy attachment and detachment to IGBT module without damaging IGBT connection pins
3. Connect motor:
• a. Connect the output of IGBT module each phase U, V, and W to each of the respective U, V, W connections on the desired three-phase motor
• b. For running motor in closed-loop motor control, connect resolver signals from motor resolver connection to the resolver pin connections on the RDGD3100I3PH5EVB. See schematics for J50 header signal connections on the RDGD3100I3PH5EVB board
• c. For running motor in closed-loop motor control, connect current sensors from each phase U, V, and W (current sensors are not included with RDGD3100I3PH5EVB) and connect the respective signals from the current sensors to the phase current feedback pin connections of the RDGD3100I3PH5EVB. See schematics for J40 header signal connections on the RDGD3100I3PH5EVB board
4. Connect DC power:
• a. Connect a low voltage DC power supply to the RDGD3100I3H5EVB at the VSUP connection terminal (12 V DC with a minimum 1.0 A supply). Ensure that J100 jumper is in place
• b. Connect a low voltage DC supply to MCU controller board and connect the USB cable from MCU controller to the desired computer for software-driven motor control
• c. Connect high voltage/high current DC supply (use recommended voltage and current for the desired motor) to positive and negative connections on the DC-Link capacitor to supply three-phase motor DC link voltage
5. Attach 2x32 PCIe cable (X-S32SDEV-CON18) supplied with the kit to the RDGD3100I3PH5EVB and MCU controller board such as the MPC5777C-DEVB. This cable is keyed and is compatible with interface port on MPC5777C-DEVB

3.2 Additional board support

Refer to UM11178 - RDGD3100I3PH5EVB three-phase inverter reference design user manual for additional details on the featured components.

4.1 Software development tools

NXP has software development tools available for use with the NXP MPC5777C development board (DEVB). The development board is intended to provide a platform for easy customer evaluation of the MPC5777C microcontroller and to facilitate hardware and software development. The development board can be used for Powertrain/ Inverters/BMS/Automotive Ethernet, etc. The latest product information is available at MPC5777C.

List of Development software:

• S32S Design Studio IDE for power architecture:
  The S32S design studio for power architecture IDE installed on a Windows PC workstation enables editing, compiling and debugging of source code designs. SDK supports several devices including MPC5777C For more information, refer to S32DSPA SDK for power architectures at S32SDK-PA.
• Automotive Math and Motor Control Library (AMMCL):
  Automotive Math and Motor Control Library (AMMCL) is a precompiled software library containing the building blocks for a wide range of motor control and general mathematical applications. For more information and to download AMMCL, refer to Automotive Math and Motor Control Library Set for MPC577xC at AUTOMCLIB.
• FreeMaster 2.0 runtime debugging tool:
  FreeMASTER runtime debugging tool is a separate download and can also be used in conjunction with the MCU code developed with S32DS as a user-friendly real-time debug monitor, graphical control panel, and data visualization tool for application development and information management. See FreeMASTER runtime debugging tool at FreeMASTER.
• Motor Control Application Tuning (MCAT):
  Motor Control Application Tuning (MCAT) is a FreeMASTER plug-in tool intended for the development of PMSM FOC and BLDC motor control applications. For more information and to download MCAT, refer to MCAT at MCAT.
• Example code, GD3100 Device Driver notes and GD3100 Device Driver Reference notes:
  GD3100 Device Driver example code REV1.1 provides a basis to get started and begin software development for the desired motor control. See GD3100 Device Driver Example Code (REV 1.1 or later) at GD3100-DRIVER.

4.2 Additional board support

Refer to UM11178 - RDGD3100I3PH5EVB three-phase inverter reference design user manual for additional details on the featured components.

5.1 Product summary page

The product summary page for GD3100 is located at GD3100.

5.2 Tool summary page

The tool summary page for RDGD3100I3PH5EVB reference design is at RDGD3100I3PH5EVB.

The page provides overview information, technical and functional specifications, ordering information, documentation, and software. The Getting Started provides quick-reference information applicable to using the RDGD3100I3PH5EVB reference design, including the downloadable assets.

5.3 Buy the board

RDGD3100I3PH5EVB: Power inverter reference design featuring GD3100 gate drivers