iMotion™* Digital Sensorless

iMOTION Digital Sensorless Motor Drive Module, continued
AEROSPACE & DEFENSE
Applications
The versatile IRMCT3UF1 motor drive module is
applicable in any high reliability speed or torque control
of a PMAC or BLDC motor. Applications include:
iMotion™* Digital Sensorless
Motor Drive Module
THE POWER MANAGEMENT LEADER
• Aircraft Fuel Pumps – Transfer and Boost
Pump Systems
• Fans and Blowers – Turbo Cooling Systems
• Compressors/Fans – Environmental Control Systems
• Hydraulic Pumps – Actuation Systems
• Coolant Pumps – Laser and Electronics
Cooling Systems
• Small Power Generators – Starting Systems
• Vetronics Traction – Propulsion Systems
• Hoist and Winches – Deploy/Retract Systems
• Actuators – Electro-Hydrostatic Actuators
HiRel iMOTION Package
• Robotics – Any robotic movement requiring speed
or torque control
• Thermally conductive, Insulated Metal Substrate (IMS)
for the power MOSFETS
• Lightweight plastic (2.0" x 4.0") ring frame and cover
• Internal PCB with motor control circuitry
Application Specific PCB
• “Tri Seal” encapsulated to meet
environmental conditions
• -40˚C to +85˚C operating temperature range
• Screened in accordance with the methods
of MIL-STD-883
• Vibration performance in accordance with DO-160
design guidelines
The International Rectifier IRMCT3UF1 supports integration of PM motor systems
requiring sensorless control of speed/torque over wide speed range (20:1) and
performance (high starting torque, high speed). Sinusoidal commutation and field
oriented control (FOC) combined with low loss PWM minimizes torque ripple,
improves motor efficiency, and boosts torque per ampere.
IR’s popular new sensorless iMOTION technology simplifies configuration of the
controller to suit a wide variety of PMAC and BLDC type motors. Users can quickly
evaluate the technology and then tailor the drive design to a particular application
using the ServoDesigner™ development tool. Motion control products developed in
this new software-less manner can thus be brought to market faster using the
powerful register-mapped tools for configuration of motor and application parameters.
*IR's iMOTION (ai mo shan), representing the intelligent motion control; Motion Control Engine, and ServoDesigner are trademarks of International Rectifier.
For more information, call 310.252.7105 or visit us at www.irf.com
For more information, call 310.252.7105 or visit us at www.irf.com
FS8458A
D
Digital Sensorless Motor Drive Module Schematic
Motion Control Engine
DC Bus
The heart of the IRMCT3UF1 is the digital motion control engine enabling rapid configuration control of motor parameters.
This internal IC does not require programming to perform sensorless control. The built in start up and control algorithm
enables a wide range of applications:
EEPROM
Power
Interface
Section
Sensorless FOC Control Algorithm
Serial
Interface
RS232C
or
RS422
RAMP
+
• Hardware based reduces FAA certification concerns
+
-
jθ
-
Host
Register
Interface
e
+
Space
Vector
PWM
Dead
time
• The sensorless vector control algorithm includes a serial host interface with drive command parameters mapped to
unique internal register locations in RAM. In addition to sensorless FOC, features such as start-up retry, phase loss
detection, low loss PWM, regeneration breaking control, and various drive protections are all internal to the IC.
Gate
Drive
FAULT
Configuration
Registers
Monitoring
Registers
Power
Substrate
Rotor Angle/
speed
Estimator
VBus
jθ
e
Discrete
Interface
2/3
A/D
interface
Analog
Speed
Command
Controller
Section
Discrete I/O
Motor
Current
Measurement
A/D
• Diagnostic features are embedded in this algorithm to enable rapid parameter identification and adjustment during
development of a motor drive. Host communication logic contains an asynchronous communication interface to RS 232
and RS 422 communication ports. The user can write to and read from the pre-defined registers to configure and
monitor the drive from these communication ports.
With this design approach and the versatility of the IC within the IRMCT3UF1 the drive can be configured for different
applications. The flexibility of the control algorithm allows the user to implement speed/torque control on a wide
variety of PMAC and BLDC motors with register based parameter modification while minimizing the component count
and design effort.
Power
Interface
Current
shunt
Analog
Speed
Command
+15
+5
+3.3
DC Bus Rtn
PC Based ServoDesigner™ Development Tool
The IR Advantage
Designed for high reliability the iMOTION™ IRMCT3UF1 is a complete motor drive housed within a compact
2" x 4" near hermetic package. This device has many advantages over traditional motor drive designs.
• The IRMCT3UF1 embedded Motion Control Engine™ (MCE) eliminates software programming
• Closed loop sensorless control requires no voltage feedback, minimizing additional hardware
• Complete sine-drive supports efficient 2 phase and quiet 3 phase center aligned and asymmetrical
Space Vector Modulation (SVM) operation – up to 15khz max carrier frequency
• Configurable architecture supports a variety of PMAC/BLDC motors
• Accurate speed regulation, (1% or better) with integrated start and ramp functions
• Wide 20:1 controlled speed range – up to PWM-rate/2 max speed command rate
• Fast control loop computation time – 11µsec to support high speed motors
• Output current up to 15A continuous 20A peak (28 VDC bus)
• Bus voltage up to 48 VDC max
• Command/diagnostic RS232C interface with speed = 57.6 kbps
• Discrete I/O includes START/STOP, FAULT/FAULTCLR
• Low RDS(on) MOSFETS, mounted on low Rth = 1.5°C/W IMS substrate
Uses IR’s advanced HVIC Gate Drivers with matching delay characteristics
• Operating temperature range -40˚C to +85˚C
• Designed to vibration guidelines of DO-160
Motor design is simplified with the IRMCT3UF1 using
IR’s proprietary ServoDesigner development tool.
This tool allows for easy menu based motor
configuration and registry loading to the IRMCT3UF1.
ServoDesigner is a free development tool and is
included with the IRMCT3UF1.
Drive commissioning can be achieved
in just a few steps:
1 Motor design and applications parameters are
entered in the ServoDesigner spreadsheet
2 Spreadsheet translates high level parameters
to digital domain parameters
3 Spreadsheet parameters are imported into
the ServoDesigner program and then downloaded to a module host register via
RS232 interface
Motor performance monitoring and further optimization
adjustments can be made with IR’s motion control
technology.
This menu based approach eliminates code
development loops and dramatically reduces
drive commissioning time.
D
Digital Sensorless Motor Drive Module Schematic
Motion Control Engine
DC Bus
The heart of the IRMCT3UF1 is the digital motion control engine enabling rapid configuration control of motor parameters.
This internal IC does not require programming to perform sensorless control. The built in start up and control algorithm
enables a wide range of applications:
EEPROM
Power
Interface
Section
Sensorless FOC Control Algorithm
Serial
Interface
RS232C
or
RS422
RAMP
+
• Hardware based reduces FAA certification concerns
+
-
jθ
-
Host
Register
Interface
e
+
Space
Vector
PWM
Dead
time
• The sensorless vector control algorithm includes a serial host interface with drive command parameters mapped to
unique internal register locations in RAM. In addition to sensorless FOC, features such as start-up retry, phase loss
detection, low loss PWM, regeneration breaking control, and various drive protections are all internal to the IC.
Gate
Drive
FAULT
Configuration
Registers
Monitoring
Registers
Power
Substrate
Rotor Angle/
speed
Estimator
VBus
jθ
e
Discrete
Interface
2/3
A/D
interface
Analog
Speed
Command
Controller
Section
Discrete I/O
Motor
Current
Measurement
A/D
• Diagnostic features are embedded in this algorithm to enable rapid parameter identification and adjustment during
development of a motor drive. Host communication logic contains an asynchronous communication interface to RS 232
and RS 422 communication ports. The user can write to and read from the pre-defined registers to configure and
monitor the drive from these communication ports.
With this design approach and the versatility of the IC within the IRMCT3UF1 the drive can be configured for different
applications. The flexibility of the control algorithm allows the user to implement speed/torque control on a wide
variety of PMAC and BLDC motors with register based parameter modification while minimizing the component count
and design effort.
Power
Interface
Current
shunt
Analog
Speed
Command
+15
+5
+3.3
DC Bus Rtn
PC Based ServoDesigner™ Development Tool
The IR Advantage
Designed for high reliability the iMOTION™ IRMCT3UF1 is a complete motor drive housed within a compact
2" x 4" near hermetic package. This device has many advantages over traditional motor drive designs.
• The IRMCT3UF1 embedded Motion Control Engine™ (MCE) eliminates software programming
• Closed loop sensorless control requires no voltage feedback, minimizing additional hardware
• Complete sine-drive supports efficient 2 phase and quiet 3 phase center aligned and asymmetrical
Space Vector Modulation (SVM) operation – up to 15khz max carrier frequency
• Configurable architecture supports a variety of PMAC/BLDC motors
• Accurate speed regulation, (1% or better) with integrated start and ramp functions
• Wide 20:1 controlled speed range – up to PWM-rate/2 max speed command rate
• Fast control loop computation time – 11µsec to support high speed motors
• Output current up to 15A continuous 20A peak (28 VDC bus)
• Bus voltage up to 48 VDC max
• Command/diagnostic RS232C interface with speed = 57.6 kbps
• Discrete I/O includes START/STOP, FAULT/FAULTCLR
• Low RDS(on) MOSFETS, mounted on low Rth = 1.5°C/W IMS substrate
Uses IR’s advanced HVIC Gate Drivers with matching delay characteristics
• Operating temperature range -40˚C to +85˚C
• Designed to vibration guidelines of DO-160
Motor design is simplified with the IRMCT3UF1 using
IR’s proprietary ServoDesigner development tool.
This tool allows for easy menu based motor
configuration and registry loading to the IRMCT3UF1.
ServoDesigner is a free development tool and is
included with the IRMCT3UF1.
Drive commissioning can be achieved
in just a few steps:
1 Motor design and applications parameters are
entered in the ServoDesigner spreadsheet
2 Spreadsheet translates high level parameters
to digital domain parameters
3 Spreadsheet parameters are imported into
the ServoDesigner program and then downloaded to a module host register via
RS232 interface
Motor performance monitoring and further optimization
adjustments can be made with IR’s motion control
technology.
This menu based approach eliminates code
development loops and dramatically reduces
drive commissioning time.
iMOTION Digital Sensorless Motor Drive Module, continued
AEROSPACE & DEFENSE
Applications
The versatile IRMCT3UF1 motor drive module is
applicable in any high reliability speed or torque control
of a PMAC or BLDC motor. Applications include:
iMotion™* Digital Sensorless
Motor Drive Module
THE POWER MANAGEMENT LEADER
• Aircraft Fuel Pumps – Transfer and Boost
Pump Systems
• Fans and Blowers – Turbo Cooling Systems
• Compressors/Fans – Environmental Control Systems
• Hydraulic Pumps – Actuation Systems
• Coolant Pumps – Laser and Electronics
Cooling Systems
• Small Power Generators – Starting Systems
• Vetronics Traction – Propulsion Systems
• Hoist and Winches – Deploy/Retract Systems
• Actuators – Electro-Hydrostatic Actuators
HiRel iMOTION Package
• Robotics – Any robotic movement requiring speed
or torque control
• Thermally conductive, Insulated Metal Substrate (IMS)
for the power MOSFETS
• Lightweight plastic (2.0" x 4.0") ring frame and cover
• Internal PCB with motor control circuitry
Application Specific PCB
• “Tri Seal” encapsulated to meet
environmental conditions
• -40˚C to +85˚C operating temperature range
• Screened in accordance with the methods
of MIL-STD-883
• Vibration performance in accordance with DO-160
design guidelines
The International Rectifier IRMCT3UF1 supports integration of PM motor systems
requiring sensorless control of speed/torque over wide speed range (20:1) and
performance (high starting torque, high speed). Sinusoidal commutation and field
oriented control (FOC) combined with low loss PWM minimizes torque ripple,
improves motor efficiency, and boosts torque per ampere.
IR’s popular new sensorless iMOTION technology simplifies configuration of the
controller to suit a wide variety of PMAC and BLDC type motors. Users can quickly
evaluate the technology and then tailor the drive design to a particular application
using the ServoDesigner™ development tool. Motion control products developed in
this new software-less manner can thus be brought to market faster using the
powerful register-mapped tools for configuration of motor and application parameters.
*IR's iMOTION (ai mo shan), representing the intelligent motion control; Motion Control Engine, and ServoDesigner are trademarks of International Rectifier.
For more information, call 310.252.7105 or visit us at www.irf.com
For more information, call 310.252.7105 or visit us at www.irf.com
FS8458A