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90 W Single Stage,Notebook Adaptor

2009-3-27 15:53:38 3165

0 90 W Single Stage,Notebook Adaptor i9uu7IYF.pdf (94.02 KB, 下载次数: 7 ) 0
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电子工程师 · 2009-3-27 15:54:38 沙发 The 90 W demo board demonstrates the wide range of features found in the NCP1651. It provides an 18.5 V, 4.86 A isolated output, foldback current limit which is ideal for low?cost battery charger and notebook adaptor applications. This unit will provide an isolated 18.5 V output from an input source with a frequency range from 47 Hz to 63 Hz, and a voltage range of 90 Vrms to 265 Vrms. It is fully self?contained and includes an internal high voltage startup circuit, and bias supply that operates off of the Flyback transformer auxiliary winding. In addition to excellent power factor, this chip offers fixed frequency operation in continuous and discontinuous modes of operation. It has a wide variety of protection features, including instantaneous current limiting, average current limiting, and an accurate secondary side power limit.

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