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  • 參數(shù)資料
    型號: LK4601-7EDDT
    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?。?/td> 1215K
    代理商: LK4601-7EDDT
    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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