AN190 INTR This The S both moto BLDC loop, senso wave The (www funct BLD (ST7 the n A bas quire AN1905 APPLICATION NOTE ST7MC THREE-PHASE BLDC MOTOR CONTROL SOFTWARE LIBRARY ODUCTION application note describes one of the software libraries available for the ST7MC MCU. T7MC microcontroller comes with a dedicated motor control cell (MTC) and can drive permanent magnet DC/AC motors (PMDC/PMAC also called BLDC) and induction AC rs. This application note describes the ST7MC software library required to control a motor with a trapezoidal 6-step drive in sensor or sensorless mode, open or closed and in current or voltage mode. The control of a PMAC motor in Sinewave mode with rs is detailed in application note AN1947. The control of an AC induction motor in Sine- mode is detailed in application note AN1904. l ib ra ry is made o f d i f fe rent C modules , compat ib le w i th bo th COSMIC .cosmic-software.com) and METROWERKS ( toolchains. The ions are grouped into several families, making this library an easy way to go through any C pro jec t development . Used in conjunct ion wi th the ST7MC star ter k i t MC-BLDC-KIT), evaluation can be achieved in a very short time, as the library eliminates eed to study the MCU in detail.
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