Three-level inverter control circuit

The invention provides a three-level inverter control circuit. PWM pulses are generated through mutual coordination real-time processing of an FPGA circuit and a DSP circuit which are connected with each other in the three-level inverter control circuit. The FPGA circuit is used for performing filtering processing on the voltages, currents and rotating speed of a motor in the form of digital signals, the DSP circuit is used for calculating the voltages, the currents and the rotating speed of the motor after the filtering processing by use of a prestored motor control algorithm so as to obtain voltages and phases of the PWM pulses. The FPGA circuit is also used for calculating the voltages and the phases of the PWM pulses by use of a prestored conditioning algorithm so as to respectively obtain modulated values and carrier wave values of the PWM pulses and finally generating the PWM pulses according to the modulated values and the carrier wave values. According to the invention, the technical problems of reduc