參數(shù)資料
      型號: LK4301-9RD0
      廠商: POWER-ONE INC
      元件分類: 電源模塊
      英文描述: 1-OUTPUT 150 W AC-DC PWR FACTOR CORR MODULE
      封裝: HEAT SINK, METAL, CASE K02
      文件頁數(shù): 15/28頁
      文件大小: 1215K
      代理商: LK4301-9RD0
      K Series
      AC-DC Converters >100 Watt
      Rugged Environment
      Edition 4/4.99
      22/28
      MELCHER
      The Power Partners.
      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
      LK
      Unit
      Ui = 230 V AC
      typ
      max
      Iinr p
      Peak inrush current
      21.7
      A
      tinr
      Inrush current duration
      35
      50
      ms
      Input
      Filter
      Control
      Converter
      FET
      Ci
      RI
      RS
      Rectifier
      PFC
      -
      Control
      1
      1001
      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
      8 sec.
      Vo+
      Vo–
      Vo+
      Vo–
      Load
      Vo+
      Vo–
      11003
      Input
      Filter
      Control
      Converter
      FET
      Ci
      RI
      RS
      Rectifier
      PFC
      -
      Control
      1
      1001
      Fig. 31
      Option E block diagram
      Fig. 33
      An example of poor wiring for connection in parallel
      Description of Options
      Table 16: Survey of options
      Option
      Function of Option
      Characteristics
      -9
      Extended operational ambient temperature range
      TA = –40...71°C
      E
      Electronic inrush current limitation circuitry
      Active inrush current limitation
      P 1
      Potentiometer for fine adjustment of output voltage
      Adjustment range +10/–60% of
      Uo nom excludes R input
      D 2
      Input and/or output undervoltage monitoring circuitry
      Safe data signal output (Versions D0...DD)
      V 2 3
      Input (and output) undervoltage monitoring circuitry
      ACFAIL signal according to VME specs (Versions V0, V2, V3)
      T
      Current sharing
      Interconnect T-pins if paralleling outputs (5 units max.)
      B1, B2
      Cooling plate
      Replaces standard heat sink, allowing direct chassis-mounting
      1 Option R excludes option P and vice versa
      2 Option D excludes Option V and vice versa
      3 Only available if main output voltage Uo1 = 5.1
      -9 Extended Temperature Range
      Option -9 extends the operational ambient temperature
      range from –25...71
      °C (standard) to –40...71°C. The power
      supplies provide full nominal output power with free air con-
      vection cooling. Option -9 excludes inrush current limitation
      by NTC.
      P Potentiometer
      The potentiometer provides an output voltage adjustment
      range of +10/–60% of
      Uo nom and is accessible through a
      hole in the front cover. This feature enables compensation
      for voltage drops across the connector and wiring. Option P
      is not recommended if units are connected in parallel.
      Option P excludes the R-function. With double output units
      both outputs are affected by the potentiometer setting (dou-
      bling the voltage setting if the outputs are in series).
      If the output voltages are increased above
      Uo nom via R-in-
      put control, option P setting, remote sensing or option T, the
      output current(s) should be reduced accordingly so that
      Po nom is not exceeded.
      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
      pins 14, the S– pins (K 4000) or the Vo1– pins (K 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.
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