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恒压:VCCIN--------PMOSFET-------------VCCOUT
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OP or Comparator-------Direct or Divider
* }' S- h0 _5 N1 r1 G -------Ref voltage
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恒流; j) E) c$ F5 |( C, c" ~
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VCCIN---LOAD------NMOSFET-------------Rsen---GND- \9 x% ~4 x% c, z9 X- U
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4 P% [' X6 ?% X8 ^2 [1 H OP or Comparator----Direct or amplify
V. W6 w% X) f ----Ref voltage ; j6 }, w3 ]( k0 a
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