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June 2006Rev 21/4
BLDC & AC Motor Control Power board SEMITOP ?3 3kW
■Quick to set up, to install and easy to run ■Inverter stage IGBT short circuit rugged based ■Design is re-usable (the ORCAD source files are available for free)
Several kinds of applications with six-step commutation or 6-signal PWM (sine wave-modulated) outputs, including: 3 Phase AC Induction motor control, 3 Phase BLDC/AC PM motor control (6-step sensorless), 3 Phase BLAC PM motor control (sinusoidal driven, with Hall sensors)
Optimized layout to provide very low level of interference between the Power and the Signal noise
Designed with ST SEMITOP ? 600V / 25A module (STG3P3M25N60)
The general hardware architecture of the reference design kit is based on an Inverter topology suitable to efficiently drive three types of motors: "3 phase BLDC/AC permanent magnet (in six-step mode)" , "3 phase AC induction" and "3phase BLAC PM motor (sinusoidal driven)" plus a plug-in control board, based on ST7FMC MCU.The inverter bridge is made by IGBT SEMITOP3? module, including three phase IGBT inverter. The driving of the bridge is made by three IGBTs drivers (suited in the control board) with high side/low side integrated functionality in a single chip with also several protections. The supply of the power is implemented using the Viper, a Vertical Intelligent Power Enhanced Regulators which combines an optimized, high voltage, Vertical Power MOSFET with state-of-the-art PWM circuitry.
1 Board schematic
2 Revision history
Updated scheme Figure 1
4/4Please Read Carefully:
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