第三部分逆变电路，输出所需交流电压；
The third part introduces inverter circuit, it provides two needed sine output voltage.
此中初始化包括：调解堆栈指针、需要使用的内部数据存储器的初始化、设置数控电源的开机输出电压以及CPU中断部分设置。
Initialized which include: adjusted stack pointer, the need to use the internal data memory of the initialization, set up the boot nc power output voltage and CPU interruption of the set.
电池连接结束后，要对电池总的输出电压进行测试并记录，以防部分电池极性接反。
After connecting the battery to the battery of total output voltage test and records, in order to prevent some of the anti-access battery polarity.
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