| 摘要 |
PURPOSE:To reduce the distortion of the output voltage for the titled inverter by a method wherein the second carrier wave is obtained by adding the voltage corresponding to the hysteresis of a comparator to the carrier wave. CONSTITUTION:The voltage is correctd in the volume corresponding to the hysteresis component of the comparator 22. To be more precise, the second carrier wave is obtained by adding one half of hysteresis is added when the voltage is boosting and a substraction is performed when the voltage is dropping. As a result, the time required for high-low switching of gate signals 4 and 5 is eliminated, and the output between the inverter output waves U and V is turned to 3 pulse waveform being symmetrical. Accordingly, the distortion of the output voltage waveform can be reduced, and a stabilized and good quality of power can be supplied without inflicting an adverse effect on the apparatus connected to the inverter output. |
