may 15, 2003 rev 3.0 IRMCO201 ac servo control fpga object code accelerator tm based soft asic manual features xilinx spartan2-300 tm b ased co mp lete a c serv o c ontrol s o lution comple te c l os e d loop c u rre nt c ontrol (sy n c h ronous ly rota ting fra m e fie l d orie nta t ion) clos e d loop c onfigura b le v e loc i ty c ontrol direct in terface to ir2175 cu rren t sen sin g h i g h v o ltag e ic direct in terface to ir213x 3-p h ase g a te d r iv er ic direct encoder interface w i th multiplex/non- mu ltip lexed hall a / b/c sig n a ls versatile lo ss min i mizatio n sp ace vecto r pw m co n f ig u r ab le arch itectu r e o support a c pm motor or induc tion motor o clos e d loop or ope n loop c ontrol a s y n chronous serial communication interface (rs232c, rs422, rs485) fast spi interface w i th mu lti-axis control capability op tio n a l 12-b i t a / d in terface fo r h a ll effect cu rren t sen sin g 1 0 v re fe re nc e c o mma nd input w i th 1 2 - bit a / d in terface 17-b i t p a rallel b u s in terface fo r micro c o n t ro ller exp an sio n 7-bit discrete i/o for seque ncing and status monito r in teg r ated b r ake igbt co n t ro l co n f ig u r ab le gui (grap h i c user in terface) av ailab l e exo file format product summary max . s y sclk 33. 3 mhz max. pll clock for current feedback 133.3 mhz closed loop current control computation time 6 usec max closed loop current loop bandwidth(-3db) 5.5 khz closed loop velocity loop update rate 5/10 khz pwm carrier frequency 16 bit/sysclk ir2175 current feedback sampling latency 8.3 usec current feedback temp drift/offset calibrated current feedback data resolution 1111 count/sysclk*4 max encoder input frequency 4 mhz 1/t encoder counter 16 bit/1mhz max asci comm. speed 56 kbps max s p i clock 6 mhz target eeprom devic e xc18v02 (programmable) x c 1 7 v 0 2 (one-time) description IRMCO201 is an fpga object code for a complete ac servo c ontrol sy stem, w h ich can be dow nloaded into the xilinx spartan2- 300 tm low cost f p ga. w i th IRMCO201, the user can readily build a high performance servo drive sy stem w i thout any programming effort. IRMCO201 provides an immediate solution fo r high performance ac servo amplifier applications. t h is soft asic is so flexible that the user can configure and optimize the sy st em specifically to the needs of each application. w i th international rectifier high voltage ics such as ir2175 cu rrent sensing ic and ir2137 3- phase gate drive ic, IRMCO201 minimizes the analog and pow er electronics component count, and si mplifies the design for low cost ac servo solutions. t h is docum ent is the pr oper t y of i n ter n ational rectifier and m a y not be copied or distr i but ed without expr essed consent.
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