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UM0971 数据表(PDF) 1 Page - STMicroelectronics |
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UM0971 数据表(HTML) 1 Page - STMicroelectronics |
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1 / 45 page  October 2010 Doc ID 17701 Rev 1 1/45 UM0971 User manual STEVAL-IHM031V1 low voltage three-phase inverter demonstration board Introduction The STEVAL-IHM031V1 demonstration board is a low voltage three-phase power stage inverter designed to perform permanent magnet motor controls. To this purpose, it must be connected to an additional control logic stage (usually based on an 8/32-bit microcontroller). According to the existing wide range of motor types and control techniques, it has been designed to offer large flexibility by allowing full configurability. In particular, it can be used for implementing scalar control (also known as current six-step mode or trapezoidal shaped back-EMF) and field oriented control (sinusoidal-shaped back- EMF PMSM). The system has been specifically designed to achieve accurate and fast conditioning of the current and back-EMF feedbacks, thereby matching the requirements typical of high-end applications such as field oriented motor control. Back-EMF conditioning networks can include an amplification stage for managing very low motor speed. Circuit networks are provided to implement different techniques of sensorless speed and rotor position detection. The input voltage range is from 12 V up to 24 V with no need to set any jumper for selecting the input voltage level. Nominal power is up to 120 W. A dedicated power supply has been designed to provide power +5 V and +3.3 V voltages to supply the control stage board. The latter can be connected to the STEVAL-IHM031V1 board by using a dedicated motor control connector, generally available in most boards based on microcontrollers produced by ST. The three-phase inverter bridge is based on the STS8DNH3LL power MOSFET dual-in- package SO-8 and L6387E gate driver. The board is self-protected by overcurrent events and for each power MOSFET the case temperature is sensed through a temperature sensor. A connector exists to read signals coming from encoder and Hall sensors. Figure 1. STEVAL-IHM031V1 demonstration board www.st.com |
类似零件编号 - UM0971 |
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类似说明 - UM0971 |
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