Control and Communication Systems
Designers can evaluate and work with the reference design by using a starter kit that Microsemi has produced, the SF2-MCSTARTER-KIT. The kit is supplied with hardware and software IP blocks, and provides a fully integrated solution together with a powerful, easy-to-use GUI which enables users to quickly create their own prototypes. The kit is supplied with a control board, two motors, external power supply and USB cabling.
The reference design supports stepper motors with up to 2,048 micro-steps. It also supports permanent-magnet synchronous motors and brushless DC motors controlled with Field-Oriented Commutation (FOC) in either a sensorless configuration or using sensor inputs from Hall sensors, encoders or resolvers.
Microsemi’s deterministic motor-control solution is compliant with industry coding standards for developing safe and reliable software for embedded applications. Microsemi offers a modular intellectual property portfolio and tools alongside the starter kit.
The SmartFusion2 deterministic motorcontrol GUI allows for the dynamic tuning of parameters such as reference speed and Kp/Ki gains of PI controllers, and for viewing internal signals for debugging. The kit also supports various communication interfaces including Ethernet, CAN, RS-485, USB and others.
|DC Input Voltage||12V to 48V|
|Maximum AC Current per Phase||8A|
|Switching Frequency||10-500kHz (lower frequencies possible when bootstrap capacitance is added)|
|Hall Interface||3 Hall sensor inputs with 5V supply provided through board|
|Encoder Interface||Single-ended and differential encoder with index|
|Resolver||Interfaced through external chip LX3302|
- Compact solution saves board space and reduces motor system size
- Tested for speeds over 100,000rpm for sensorless motors
- 1μs latency in FOC loop
- Automatic motor re-start
- Over-current protection
- Motor drives