The converter is a single-phase 220V voltage input, driving three-phase motor (must be converted into a triangle connection).Frequency output 1.0-99.0HZ. In order to improve the output voltage, the product uses SVPWM modulation mode. Carrier frequency is 8.0KHZ. It is suitable for motors under 400W, and the maximum output power is 550W. The converter can change the V/F curve arbitrarily by setting the V/F compensation frequency and the voltage ratio under the frequency. By setting the maximum value of the V/F curve, according to the load situation, it can maximize the utilization efficiency of electric energy, reduce the heat of the generator, and prolong the service life of the motor and the converter.