经PSPICE软件仿真和小功率电路实验证明，“通过改变开关角而实现调节输出电压”的闭环设计方案是可行的。
Tested by PSPICE simulation and small power experiment, the designing project "adjusting output voltage by changing on and off time of the SPWM" is practical.
通过将大功率(大电流)和小功率放大电路分置在不同的单元中，就可以避免输入信号受到干扰。
By putting the high-power (high current) and low power sections in different boxes we can help protect the input signals from harm.
设计了可有效提高效率的小功率常规集成电源电路。
A high efficient power supply circuit for compact low power application is designed.
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