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Angular Sensor for 3-Phase Brushless Motor Commutation and Position Control with Side-Shaft Positioning Capability
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The MagAlpha MA300 magnetic sensor is an all-in-one solution designed to replace Hall switches for 3-phase block commutation in brushless DC motors and provide encoder data. The MA300 detects the absolute angular position of a permanent magnet, typically a diametrically magnetized cylinder attached to the rotor. The data acquisition and processing is extremely fast, allowing for accurate angle measurement at speeds from 0 to 100,000 RPM.
Since the measurement is spatially confined, users have flexibility in terms of magnet shapes and configurations. This helps relax mechanical tolerances and, in case the end-of-shaft position is not available, the MagAlpha MA300 operates away from the axis of rotation (“side-shaft” mounting).
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Features & Benefits
- UVW Signals for Block Commutation
- 11-Bit Resolution Absolute Angle Encoder
- 500kHz Refresh Rate
- Ultra-Low Latency: 3µs
- Serial Interface for Data Readout and Settings
- 10-Bit Incremental Output (A, B, Z)
- Built-In Linearization for Side-Shaft Mounting
- 7.7mA Supply Current
- Available in a QFN-16 (3mmx3mm) Package
TBMA300-Q-LT-00A Evaluation Kit Long Eval Board for MA300
The TBMA300-Q-LT-00A is the long test board for the MagAlpha magnetic position sensor MA300. The sensor is mounted on the edge of the board and can therefore be used in both side-shaft and end-of-shaft configurations.
It requires the communications kit (EVKT-MACOM) and the Macom App Software (see below) to evaluate MagAlpha functionality and performance with your set-up, such as noise level, refresh rate, power-up time, and magnetic field dependence.
In addition to this long test board, there is a round format version (RD) where the sensor is mounted in the center of the board for end-of-shaft configurations.
Round Eval Board for MA300
Windows Desktop Application + Drivers for the MagAlpha Communication Kit.
MagAlpha Communication Kit to Connect to Sensor Test Boards (TMBA) and Rotary Knob Kit, Requires Macom App Software