The Application of TMS320F240 in High Frequency PWM Governor Abstract Among high-speed data chips, TMS320F240 is most suitable for SPWM control. It controls the six switching devices of the inverter to achieve SPWM variable frequency speed regulation. This article briefly introduces the basic structure and characteristics of the chip, the principle of SPWM variable frequency speed regulation, and the main inverter circuit of the electric spindle frequency conversion and regulation system. Experiments and practical applications have proved that TMS320F240 is very powerful and has a fast computing speed, and is suitable for the control of three-phase AC motors. Keywords DSP Frequency conversion regulating system SPWM Magnetically levitated motorized spindle Abstract Among high speed data chips,TMS320F240 is most suitable for SPWM control. It is able to control six of the switching components to realize SPWMfrequency conversion regulating. The basic structure and features of the ship,and the principle of SPWM frequency conversion regulation,as well as the maininverting circuit of the motrized spindle are introduced briefly in this paper. Through experiments and practical operation,it is proved that TMS320F240 is powerfuland features high speed operation,it is suitable for controlling 3 phase AC motors.Keywords DSP Frequency conversion regulating system SPWM Magnetically levitated motorized spindle
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