CPT-DFM2 - Inverter Controller Motherboard

PCB CPT-DFM2

The CPT-DFM2 is an Inverter Controller Motherboard designed for applications requiring an integrated controller solution to control up to 8 gate driver pairs. 

The CPT-DFM2 is part of the DF Series of Modular boards.

The CPT-DFM2/CPT-DFCC combination contains on-card all necessary functions for a standalone inverter controller, with flexible gate driver options.

The default Motherboard configuration is capable of driving inverter power stages with ratings up to 200kW (1700V, 200A IGBT modules), with the addition of the CPT-E02 gate driver module. The drive capacity can be increased through the use of alternative plug-in gate driver modules.

Technical Specifications

 

  • DF Series Compatible
  • Default Load: CPT-DF28377D (see Peripherals for alternatives)
    • TMS320F28377DPTP MCU processor
    • Dual CPU / Dual CLA
    • Programmable Control Law Accelerator
    • 512k x 16 Flash 
    • 2k x 16 OTP ROM
    • Boot ROM
    • 102K x 16 RAM made up of:
      • 36k x 16 Dedicated and Local Shared RAM (18K/CPU)
      • 64k x 16 Global Shared RAM
  • Serial Flash Memory with 1Mbit of non-volatile storage
  • On-Card Status Indications
    • 1 off Power LED
    • 4 off indication LEDs
    • 4 off DIP Switches
    • Each Isolated Digital I/O has an on-card Status LED
  • Isolated Digital I/O
    • 2 off Isolated Digital Inputs (Input Supply Referenced)
    • 3 off MOSFET Switch Isolated Outputs (Input Supply Referenced)
    • 2 off Relay Outputs, C/O contact
  • Conditioned Analog Inputs (Low voltage inputs)
    • 3 off differential AC Voltage inputs, (Three-phase 4-wire input compatible)
    • 3 off differential AC/DC Voltage inputs
    • 5 off Current inputs (AC and DC compatible)
    • 1 off MCU internal Temperature Sensor input
  • 2 x 20 way IDC 5V-TTL Level Gate Expansion Ports. Each Port contains
    • 8 off buffered 5V TTL level ePWMxx outputs
    • Each ePWM module consists of two PWM outputs (EPWMxA and EPWMxB) that can be used in the following configurations:
      • Two independent PWM outputs with single-edge operation
      • Two independent PWM outputs with dual-edge symmetric operation
      • One independent PWM output with dual-edge asymmetric operation
    • Fault Feedback Interrupt
    • Gate Reset Signal
  • Quadrature Position Encoder input with Index and Strobe
  • Reset/Power-On Circuitry
  • Push Button Reset
  • On-card logic level supply generation
  • Power supply operation from input 24VDC (18-30VDC)
    • -DFA option enables 9-32VDC input
  • Dimensions:
    • 220mm x 100mm (7.09" x 3.94")

Peripherals

Gate Driver Options

  • CPT-E02 - 3 x Semikron SKYPER32 PRO Gate Driver Modules
  • Custom Gate Driver Options available upon request

DF Series Control Cards

  • CPT-DF28377D - TMS320F28377D DF Series Microcontroller Platform

DF Series Communications Expansion Cards

  • CPT-DFC2 - Dual USB Serial, CAN, RTC
  • CPT-DFC4 - RS485, CAN, isoSPI

Power Supply Range Extension

  • Part Number becomes CPT-DFM2-DFA

Connector Options

  • All connectors available in either vertical or horizontal load
  • IDC Connectors available in either shrouded top or bottom side load or non-shrouded socket variants

DF Series Stack Example

  • The following example shows a DFM2, DFCC, DFJ and DFC4 board stack

DFM2 Assembly_DFCC_DFJ_DFC4

Downloads