【摘要】 本系统是一个交直交的变频电源,以凌阳的SPMC75F2413A单片机为控制核心,采用SPWM技术控制变频,实现三相的正弦波输出,其最大输出电流为3A。本系统还具有频率测量,电流、电压有效值测量,平均功率测量以及各种保护功能。更多还原

【Abstract】 The system is an AC-DC-AC variable frequency power supply based on SUNPLUS SPMC75F2413A MCU.The technology of SPWM frequency converting control is applied to get the output of three-phase variable frequency sine wave.The maximum current output is up to 3 A.The system also includes the following functions like frequency metering,measurements of real voltage and current,measurement of the average power and multi-protection.更多还原