The Design of Variable Frequency Power Based on IGBT

Li Jie,Li Guang-Hui,Hou Li-juan, Zhang Xiu-li

Intelligent Networks and Intelligent Systems（2012）

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摘要

This paper introduces the design method of variable frequency power based on IGBT and SPWM inverter technology. The drive signal of IGBT is SPWM wave produced by MCU, and then a undistorted sine signal can be obtained through the low pass filter. LED digital tube displays the voltage value for watching. The sine wave with stably frequency and high precision could be produced by this design.

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关键词

LED displays,PWM invertors,insulated gate bipolar transistors,low-pass filters,microcontrollers,IGBT,LED digital tube displays,MCU,SPWM inverter technology,low pass filter,undistorted sine signal,variable frequency power design,IGBT,MCU,SPWM,Variable frequency power,

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