ADP1621

The input range for the demo board is 3.0 V to 3.6 V, and the output voltage is 5 V with a maximum load of 2 A. The design is done in a bootstrapped configuration as shown in Figure 13. The switching frequency f_SW is set to 600 kHz with a 36 kΩ resistor. This design is done in all multilayer ceramic capacitors (MLCC), although other types of capacitors can be used, such as the aluminum polymer or aluminum electrolytic capacitors. The PCB is laid out in such a way that the user can easily modify the demo board for other input and output configurations.

The Isolated Inverter Platform is a rapid development system for hardware and/or software development in three-phase inverter applications, with a particular focus on motor control. Flexible evaluation of ADI isolation technology in a highly configurable system-oriented platform is enabled with multiple test-points, and connectivity options. An easy-plug connector allows controller connection to an ADSP-CM408 processor evaluation board, while additional 0.1” headers enable alternative connectivity to other processor or FPGA platforms. The benefits of ADI isolated sigma-delta converters for voltage and current measurement, isolated gate drivers, and power controllers can be explored in a full system application at dc bus levels up to 800V. There are 2 models available, isolated inverter platform, and isolated inverter platform with full featured IGBT drivers.

This evaluation board is obsolete and no longer recommended.

The AD-FMCMOTCON2-EBZ is a complete high performance servo system on an FPGA Mezzanine Card (FMC) board, the purpose of which is to provide a complete motor drive system demonstrating efficient and high dynamic control of three phase PMSM and induction motors up to 48V and 20A.

Two motors can be driven at the same time, each motor having its separate power supply. The system incorporates high quality power sources; reliable power, control, and feedback signals isolation; accurate measurement of motor current & voltage signals; high speed interfaces for control signals to allow fast controller response; industrial Ethernet high speed interfaces; single ended Hall, differential Hall, encoder and resolver interfaces; digital position sensors interface; flexible control with a FPGA/SoC interface.

The kit consists of two boards: a controller board and a drive board. An optional AD-DYNO2-EBZ dynamometer can also be purchased through Avnet and is intended to be an extension of the drive system.

Controller Board

• Digital board for interfacing with the low and high voltage drive boards
• Compatible with all Xilinx FPGA platforms with FMC LPC or HPC connectors
• FMC signals voltage adaptation interface for seamless operation on all FMC voltage levels
• Fully isolated digital control and feedback signals
• Isolated Xilinx XADC interface
• 2 x Gbit Ethernet PHYs for high speed industrial communication, with 3rd party EtherCAT support
• Single ended Hall, Differential Hall, Encoder, Resolver interfaces
• Digital sensors interfaces
  • EnDat
  • BISS Interface

Drive Board

• Drives motors up to 48V @ 20A
• Drives 2 motors simultaneously
• High frequency drive stage implemented with ADI isolated gate drivers
• Supported motor types
  BLDC
  PMSM
  Brushed DC
  Stepper (bipolar / unipolar)
• Integrated over current protection
• Reverse voltage protection
• Current and Voltage measurement using isolated ADCs
• BEMF zero cross detection for sensorless control of PMSM or BLDC motors
• Separate voltage supplies for the 2 motors so that the motors don't influence each other

Dynamometer System with Embedded Control

• Two BLDC motors connected by a rigid couple in a dyno setup, which can be used to test real-time motor control performance.
• One BLDC motor acts as an electronically adjustable load and is driven by the embedded control system. This motor can be directly connected to the FMC motor drive to get complex / active loads. The load can be driven also by the AD-FMCMOTCON2-EBZ to implement dynamic load profiles.
• The other BLDC motor is driven by the FMC motor drive.
• Measurement and display of load motor current
• Measurement and display of load motor speed
• External control using Analog Discovery and MathWorks Instrumentation Control Toolbox

Software:

Example reference designs showing how to use the platform with Xilinx^® FPGAs or SoCs and high performance control algorithms from Mathworks^® are provided together with the hardware. Information on the FMC board, and how to use it, the design package that surrounds it, and the software which can make it work, can be found by clicking the software link.