Mon. Feb 6th, 2023

Freescale’s TWR-MC-LV3PH is a low-voltage three-phase motor control module that provides a three-phase bridge inverter (6 MOSFETs), three-phase MOSFET gate drivers with overcurrent and undervoltage protection, and three-phase and DC busses , Input power supply voltage 12-24VDC, expandable to 50V, output current up to 8A, provides a variety of algorithms to control three-phase permanent magnet synchronous motor (PMSM) and brushless DC (BLDC) motor, suitable for Tower System design. This article introduces The main features, block diagram and circuit diagram of the TWR-MC-LV3PH low voltage three-phase motor control module are presented.

The 3-phase Low Voltage Motor Control board (TWR-MC-LV3PH) is a peripheral Tower System Module with one of the available MCU tower module, 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.

Looking to add rotational or linear motion to your applications? Add three-phase Brushless DC (BLDC) and Permanent Magnet Synchronous Motor (PMSM) motor control capabilities to your Tower System designs with the TWR-MC-LV3PH Low-Voltage 3-Phase Motor Control module. This peripheral module effectively turns a Tower System development tool into a complete motor control reference design kit that includes a BLDC motor. As is standard with all Tower System modules, this peripheral module is interchangeable across the development platform and can be used with a variety of existing controller modules including: TWR-K60N512, TWR-56F8257, TWR-K40X256 Torque your designs and speed your time to market with this Tower System module and BLDC motor.

Main features of TWR-MC-LV3PH low voltage three-phase motor control module:

Power supply voltage input 12‐24VDC, extended up to 50V

Output current up to 8 Amps

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, 6 PWM LED diodes

The TWR-MC-LV3PH Low Voltage Three Phase Motor Control Kit includes:

TWR-MC-LV3PH module

BLDC Motor

Power Supply

Quick Start Guide document
FreescaleTWR-MC-LV3PH low-voltage three-phase motor drive solution
Figure 1. TWR-MC-LV3PH block diagram
FreescaleTWR-MC-LV3PH low-voltage three-phase motor drive solution
Figure 2. Outline drawing of TWR-MC-LV3PH module
FreescaleTWR-MC-LV3PH low-voltage three-phase motor drive solution
Figure 3. TWR-MC-LV3PH circuit diagram (1)
FreescaleTWR-MC-LV3PH low-voltage three-phase motor drive solution
Figure 4. TWR-MC-LV3PH circuit diagram (2)
FreescaleTWR-MC-LV3PH low-voltage three-phase motor drive solution
Figure 5. TWR-MC-LV3PH circuit diagram (3)

Figure 6. TWR-MC-LV3PH circuit diagram (4)
For details, see:
http://cache.freescale.com/files/32bit/doc/user_guide/TWRMCLV3PHUG.pdf?fpsp=1&WT_TYPE=Users%20Guides&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=pdf&WT_ASSET=Documentation
and
http://cache.freescale.com/files/32bit/hardware_tools/schematics/TWRMCLV3PH_SCH.pdf?fpsp=1

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