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用ＵＣＣ３８８９设计高效、紧凑的低功率开关稳压电源黄小平一、概述美国ＵＮＩＴＲＯＤＥ公司生产的ＵＣＣ３８８９专用集成电路芯片可用来设计高效、紧凑的低功率开关稳压电源，图１给出了以非连续电流方式工作的级连反馈变换器的基本电路．该电路用串联方式将两个反馈...
UCC3889 design efficient and compact low-power switching power supply Huang Xiaoping First, an overview of the United States UNITRODE company UCC3889 ASIC chip can be used to design efficient, compact low-power switching power supply, Figure 1 shows the discontinuous current The basic circuit of cascaded feedback converter operating in the same way. The circuit in series will be two feedback ...