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本文分别介绍了采用TL497专用集成电路器件的升压、降压和反极性型的三种开关电源电路,并对其设计和运用也作了阐述.
In this paper, we introduce three kinds of switching power supply circuits of step-up, step-down and reverse polarity using TL497 ASIC respectively. The design and operation of the circuit are also described.