• 參數(shù)資料
    型號(hào): LK1001-9V0B1
    廠商: POWER-ONE INC
    元件分類: 電源模塊
    英文描述: 1-OUTPUT 150 W AC-DC REG PWR SUPPLY MODULE
    封裝: METAL, CASE K02, MODULE
    文件頁(yè)數(shù): 20/26頁(yè)
    文件大小: 1027K
    代理商: LK1001-9V0B1
    Cassette Style
    AC-DC Converters
    K Series
    Edition 5/5.2000
    3/26
    Functional Description
    The input voltage is fed via an input fuse, an input filter, a
    rectifier and an inrush current limiter to the input capacitor.
    This capacitor sources a single transistor forward con-
    verter. Each output is powered by a separate secondary
    winding of the main transformer. The resultant voltages are
    rectified and their ripples smoothed by a power choke and
    output filter. The control logic senses the main output volt-
    Fig. 1
    Block diagram of single output converters LK 1000
    age
    Uo1 and generates, with respect to the maximum ad-
    missible output currents, the control signal for the primary
    switching transistor.
    The second output of double output units is controlled by
    the main output but has independent current limiting. If the
    main output is driven into current limitation, the second out-
    put voltage will fall as well and vice versa.
    Input
    filter
    Control
    circuit
    P
    2
    Y
    16 R
    18 i
    20 D/V
    22 T
    12 S+
    4
    6
    8
    10
    14 S–
    Y
    Output
    filter
    1
    30
    32
    24
    3
    +
    Y
    Forward
    converter
    (approx.
    120
    kHz)
    03085
    Vo+
    Vo–
    26
    28
    N
    P
    1 Transient suppressor (VDR)
    2 Inrush current limiter (NTC or option E), -9 version exclude the NTC
    3 Input fuse
    Input
    filter
    Control
    circuit
    1
    P
    2
    16 R
    18 i
    20 D
    22 T
    12 Vo1+
    14 Vo1–
    4
    6
    8
    10
    Output
    2
    filter
    Output
    1
    filter
    3
    +
    Y
    Forward
    converter
    (approx.110
    kHz)
    03086
    Vo2+
    Vo2–
    30
    32
    24
    26
    28
    N
    P
    Fig. 2
    Block diagram of symmetrical double output converters LK 2000
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