数字化逆变器的控制采用TMS320F 240芯片来实现，在其软件中采用了用于电流预估计的PI控制算法和电压电流的双环控制。
The digital inverter is controlled by a TMS320F240 DSP chip, which applying the improved digital PI control arithmetic of the current prediction and the double control loops of voltage and current.
TL 494芯片功能强，工作频率高，通过外扩简单的硬件电路即可实现输出电压电流的双闭环控制。
The chip of TL494 functions very strong, and its operation frequency is high. The double closed loop control of output voltage and current is realized by integrating some simple hardware circuit.
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