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输入48V左右，恒压输出电压0到40V范围，恒流输出0到6A，用DAC实现输出可调
Hi 做恒压恒流，而且同时可调吗？ 可以考虑LM25117， TI提供的恒压横流设计好像也就LM25117/5117, 如果你要输出从0V开始，需要外部运放做反馈。
