參數(shù)資料
            型號(hào): LK2660-7RDDTB1
            元件分類: 電源模塊
            英文描述: 2-OUTPUT 150 W AC-DC REG PWR SUPPLY MODULE
            封裝: METAL, CASE K02, MODULE
            文件頁數(shù): 23/27頁
            文件大小: 640K
            代理商: LK2660-7RDDTB1
            K-Family
            DC-DC Converters >100 W
            Rugged Environment
            8 - 6
            Edition 2/96 - Melcher AG
            MELCHER
            The Power Partners.
            8.1
            Fig. 2
            Block diagram of single output converters AK…LK 1000
            Input
            filter
            Control
            circuit
            2
            P
            4
            3
            Forward
            converter
            (approx.
            120
            kHz)
            Y
            16
            18
            20
            22
            12
            4
            6
            8
            10
            14
            Y
            Output
            filter
            1
            26
            28
            30
            32
            24
            5
            +
            Y
            Functional Description
            The input voltage is fed via an input fuse, an input filter, a
            rectifier (LK types) and an inrush current limiter to the input
            capacitor. This capacitor sources a single transistor forward
            converter. 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-
            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 taken into current limitation, the second out-
            put voltage will fall as well and vice versa.
            Fig. 3
            Block diagram of symmetrical double output converters AK...LK 2000
            4 Inrush current limiter in C/D/E/LK types (NTC or Opt. E),
            -9 versions exclude the NTC
            5 Input fuse
            1 Transient suppressor (VDR) in C/D/E/F/LK types
            2 Transient suppressor (diode) in A/B/C/FK types
            3 Bridge rectifier in LK types
            Input
            filter
            Control
            circuit
            1
            2
            P
            4
            3
            Forward
            converter
            (approx.
            110
            kHz)
            16
            18
            20
            22
            12
            14
            4
            6
            8
            10
            Output
            2
            filter
            Output
            1
            filter
            26
            28
            30
            32
            24
            5
            +
            Y
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