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      參數(shù)資料
      型號(hào)： LS4601-7RDDTB2
      元件分類： 電源模塊
      英文描述： 1-OUTPUT 100 W AC-DC PWR FACTOR CORR MODULE
      封裝： METAL, CASE S02, MODULE
      文件頁(yè)數(shù)： 15/27頁(yè)
      文件大?。?/td> 599K
      代理商： LS4601-7RDDTB2
      Cassette Style
      100 Watt AC-DC Converters
      S Series PFC
      Edition 01/01.2001
      22/27
      Fig. 34
      Paralleling of single output units using option T with the
      sense lines connected at the load
      Load
      max. 5 units in parallel connection
      +
      –
      Power bus
      Module
      Vo2–
      Vo2+
      Vo1–
      Vo1+
      T
      Module
      Vo2–
      Vo2+
      Vo1–
      Vo1+
      T
      11037
      Load
      1
      2
      3
      LS 4000
      S+
      Vo+
      Vo–
      S–
      N
      P
      T
      LS 4000
      N
      P
      S+
      Vo+
      Vo–
      S–
      T
      1
      max. 5 units connected in parallel
      11011
      1 Leads should have equal length and cross sections and should
      run in the same cable loom.
      2 Diodes recommended in redundant operation only
      3 DC common point
      Fig. 35
      Paralleling of double output units using option T with
      Power bus.
      E Inrush Current Limitation
      The converters may be supplemented by an electronic cir-
      cuit (option E, replacing the standard built-in NTC) to
      achieve an enhanced inrush current limiting function.
      Table 17: Inrush current characteristics with option E
      Characteristics
      LS
      Unit
      Ui = 230 V AC
      typ
      max
      Iinr p
      Peak inrush current
      –
      25.3
      A
      tinr
      Inrush current duration
      35
      50
      ms
      15
      Ii [A]
      10
      5
      0
      –5
      –10
      0
      20
      40
      60
      80
      t [ms]
      tinr
      Capacitor
      Ci
      fully charged
      Normal operation
      (FET fully conducting)
      20
      10
      50
      70
      30
      11002
      Fig. 32
      Inrush current with option E, Ui = 230 V AC, Po = Po nom
      Precaution:
      Subsequent switch-on cycles at start-up are limited to
      max. 10 cycles during the rst 20 seconds (cold unit)
      and at continuing on/off (
      TC =95°C) max. 1 cycle every
      8sec.
      Vo+
      Vo–
      Vo+
      Vo–
      Load
      Vo+
      Vo–
      11003
      Input
      Filter
      Control
      Converter
      FET
      Ci
      RI
      RS
      Rectifier
      PFC
      -
      Control
      11
      0
      1
      Fig. 31
      Option E block diagram
      T Current Sharing
      This option ensures that the output currents are approxi-
      mately shared between all paralleled modules and in-
      creases system reliability. To use this facility, simply inter-
      connect the T pins of all modules and make sure, that
      pin 14, the S– pin (S 4000) or the Vo1– pins (S 5000) are
      also connected together. The load leads should have equal
      length and cross section to ensure equal voltage drops. Not
      more than 5 units should be connected in parallel. If output
      voltage adjustment is requested we strongly recommend to
      use the R-input instead of option P, as with option P the re-
      quired setting accuracy is difcult to achieve. The output
      voltages must be individually set prior to paralleling to
      within a tolerance of 1...2% or the R pins should be con-
      nected together.
      Fig. 33
      An example of poor wiring for connection in parallel
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