直流伺服系统.pdf

246 2004 23 1000S0-0246-03 DSP Design of Double Servo Drive System Based on Single DSP Chip (, 710072) 050003 : DSP DSP TMS320LF2407A PWM PWM H DSP DSP H TN409 20 90 B PWM Abstract: A double servo drive system is designed, based on single chip DSP, in the digitization reform of one type of cannon 1 equipment’s servo system. TMS320LF2407A, one special motor control DSP chip, is used to output two-channel PWM control signals, controlling pitch and azimuth motors seperately. 2 H-bridge topology ,adopted in the power circuit, runs under the limited unipolar of double frequence reversible PWM mode. Test 3 shows that the digital servo system is reliable, and has a quick response, low noise. DSP Key words: DSP servo driveh-bridge;double frequency limited PWM unipolar mode 1 2 H 1 V1V2V3V4 IPM