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1 Overview
The 3-phase Low Voltage Motor Control board (TWR-MC-
LV3PH) is a peripheral Tower System Module. With one of
the available MCU tower modules accommodating a selected
microcontroller it provides a ready-made, software-
development platform for one-third horsepower off-line
motors. Feedback signals are provided that allow a variety of
algorithms to control 3-phase PMSM and BLDC motors.
The TWR-MC-LV3PH module features:
• Power supply voltage input 12-24 VDC, extended up to
50 V (see Electrical Characteristics for details)
• Output current up to 8 amperes (A)
• Power supply reverse polarity protection circuitry
• 3-phase bridge inverter (6-MOSFET’s)
• 3-phase MOSFET gate driver with over current and
under voltage protection
• 3-phase and DC bus-current-sensing shunts
• DC bus-voltage sensing
• 3-phase back-EMF voltage sensing circuitry
• Low-voltage on-board power supplies
• Encoder/Hall sensor sensing circuitry
• Motor power and signal connectors
• User LED, power-on LED, and 6 PWM LED diodes
A block diagram for the TWR-MC-LV3PH is shown in Figure
1 .
Freescale Semiconductor
Document Number:TWRMCLV3PHUG
Miscellaneous Self Covered
Rev. 1, 07/2012
TWR-MC-LV3PH User’s Guide
© 2011–2012 Freescale Semiconductor, Inc.
Contents
1 Overview....................................................................1
2 Reference Documents................................................3
3 Hardware Features.....................................................3
4 Signal Description.....................................................8
5 Configuration Settings............................................15
6 Mechanical Form Factor..........................................16
7 Revision History.....................................................17
Verzeichnis
