如题,电源要求:输入100-250V(AC)50/60Hz
输出110V或220V(AC)(可切换)50/60Hz,带功率50W以上。
因为要体积小,要求是PWM控制输出
德州仪器有相应的方案或芯片吗?
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你好,如果不计成本,可以用PFC+全桥逆变,PFC用ucc28180即可,母线电压设置390V,逆变用模拟电路搭架,运放lm2904,比较器LM2903,三角波(LF353)搭建,谢谢。