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| January 15, 2003 Rev 2.1 IRACO201 AC Servo Control FPGA Object Code AcceleratorTM Soft ASIC Manual Product Summary TM Features Xilinx Spartan2-300 based complete AC servo control solution Complete closed loop current control (Synchronously Rotating Frame Field Orientation) Closed loop configurable velocity control Direct interface to IR2175 current sensing high voltage IC Direct interface to IR213x 3-phase gate driver IC Direct Encoder interface with multiplex/nonmultiplexed Hall A/B/C signals Versatile loss minimization Space Vector PWM Configurable architecture o Support AC PM motor or Induction motor o Closed loop or open loop control Asynchronous serial communication interface (RS232C, RS422, RS485) Fast SPI interface with multi-axis control capability Optional 12-bit A/D interface for hall effect current sensing 10V reference command input with 12-bit A/D interface 17-bit parallel bus interface for microcontroller expansion 7-bit discrete I/O for sequencing and status monitor Integrated brake IGBT control Configurable GUI (Graphic User Interface) available EXO file format Max. Sysclk Max. PLL clock for current feedback 33.3 MHz 133.3 MHz Closed loop current control computation time 6 usec max Closed loop current loop bandwidth(-3dB) Closed loop velocity loop update rate PWM carrier frequency IR2175 Current feedback sampling latency Current feedback temp drift/offset Current feedback data resolution Max encoder input frequency 1/T encoder counter Max ASCI comm. Speed Max SPI clock Target EEPROM device 5.5 kHz 5/10 kHz 16 bit/Sysclk 8.3 usec calibrated 1111 count/sysclk*4 4 MHz 16 bit/1MHz 56 Kbps 6 MHz XC18V02 (programmable) XC17V02 (one-time) Description IRACO201 is an FPGA object code of complete AC servo control system, which can be downloaded into Xilinx Spartan2-300 low cost FPGA. With IRACO201, user can readily build the high performance servo drive system without any programming effort IRACO201 provides immediate solution for high performance AC servo amplifier application without any programming effort. This soft ASIC is so flexible that user can yet configure and optimize the system for each application needs. With International Rectifier high voltage ICs such as IR2175 current sensing IC and IR2137 3-phase gate drive IC, IRACO201 minimizes analog and power electronics component count, and simplifies the design for low cost AC servo solution. TM This document is the property of International Rectifier and may not be copied or distributed without expressed consent. |
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