FANUC A06B-0273-B400#0100用单片机的PWM输出对电机控制是实现电机数字控制的常用手段。目前常用的电机控制芯片是NS公司的LMD18200，其工作电压55 V，连续输出电流3 A，可接收300 kHz的PWM脉冲，但是本系统选用的直流力矩电机经常工作在堵转状态，LMD18200不能提供持续的5 A电流，若将LMD18200并联来增大电流驱动能力，又有烧坏芯片的风险，所以本文选择由一片HIP4080、4片MOS管IRF540构成的电机驱动电路，如图3所示。
HIP4080是一款专门用于控制H桥的高频全桥驱动芯片，正常工作电压12 V，可接收高达1 MHz的PWM信号［3］。该芯片可以控制H桥工作在单极性驱动方式，可以使H桥输出电流波动比较小，功率损耗更低。H桥由4片MOS管IRF540搭成，IRF540大耐压100 V，大驱动电流是28 A，胜任直流力矩电机经常工作在堵转状态。如图3所示，HIP4080接收单片机的PWM、电机转向DIR和制动信号DIS，控制H桥电路MOS管的导通时间和导通次序，从而控制电机两端电压的大小和方向，实现电机的调速。
FANUC A06B-0273-B400#0100
Indramat MTS-R02.2-M2-B1-S4-N-N-FW CNC Module
Refurbished Fisher PROVOX CL6821X1-A5 Analog I/O Board
GE Fanuc IC697MDL653 E Series 90-70 Input Module
WIF 2Y000740-2 Control Board
Dover Flexo 723-0001 SteadyWeb Power Board
Philips LCTM-02 Controller Module
MTS Automation FLX Series Servo Amplifer Rack W/PS
UNICO 314887 Rev. 9 Series 4000 CPU Module
Perkin-Elmer N260-9134 Series 410 Pump Control Board
Refurbished Akron Standard 440-0973-01 Processor Board
ABB YB560103-CH/10 DSQC 239 Robotic Remote I/O Module
FANUC A20B-2902-0350/01A Control Module
FANUC A20B-2902-0290/07C Digital Axis Control Module
Bailey Controls NASM02 Infi 90 Analog Slave Module
FANUC A20B-2902-0223/01A Spindle Control Module
FANUC A20B-2902-0290/01A Digital Axis Control Module
Atlas Copco K-259952M-15 Cable Assembly
FANUC A16B-1211-0860/04A CPU Control Board
FANUC A20B-0008-0240/02/02A Orientation Control Board
Symbol Technologies LDT ETR 3805-CE0E06E Data Terminal
NEUNDORFER MVC2-A07 CONTROL BOARD
Square D 51020-243-53 Size 6 240VDC Operating Coil
ABB YPH 108B/GPC Speed Measurement Board 61080805
FANUC A20B-2100-0021/07G Power Mate H Control Board
FANUC A20B-2902-0370/02A Memory Module
Schneider/Modicon 110-090 Cyberline 1000 Servo Drive
Allen-Bradley 7300-UPX CNC Control Board
Allen-Bradley 7300-UPW CNC Control Board
Allen-Bradley 7300-UAF CNC Control Board
Indramat MTS-R02.2-M2-B1-S4-N-N-FW CNC Module
Refurbished Fisher PROVOX CL6821X1-A5 Analog I/O Board
GE Fanuc IC697MDL653 E Series 90-70 Input Module
WIF 2Y000740-2 Control Board
Dover Flexo 723-0001 SteadyWeb Power Board
Philips LCTM-02 Controller Module
MTS Automation FLX Series Servo Amplifer Rack W/PS
UNICO 314887 Rev. 9 Series 4000 CPU Module
Perkin-Elmer N260-9134 Series 410 Pump Control Board
Refurbished Akron Standard 440-0973-01 Processor Board
ABB YB560103-CH/10 DSQC 239 Robotic Remote I/O Module
FANUC A20B-2902-0350/01A Control Module
FANUC A20B-2902-0290/07C Digital Axis Control Module
Bailey Controls NASM02 Infi 90 Analog Slave Module
FANUC A20B-2902-0223/01A Spindle Control Module
FANUC A20B-2902-0290/01A Digital Axis Control Module
Atlas Copco K-259952M-15 Cable Assembly
FANUC A16B-1211-0860/04A CPU Control Board
FANUC A20B-0008-0240/02/02A Orientation Control Board
Symbol Technologies LDT ETR 3805-CE0E06E Data Terminal
NEUNDORFER MVC2-A07 CONTROL BOARD
Square D 51020-243-53 Size 6 240VDC Operating Coil
ABB YPH 108B/GPC Speed Measurement Board 61080805
FANUC A20B-2100-0021/07G Power Mate H Control Board
FANUC A20B-2902-0370/02A Memory Module
Schneider/Modicon 110-090 Cyberline 1000 Servo Drive
Allen-Bradley 7300-UPX CNC Control Board
Allen-Bradley 7300-UPW CNC Control Board
Allen-Bradley 7300-UAF CNC Control Board
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