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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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LS4501-7R Arkusz danych(PDF) 3 Page - Power-One |
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LS4501-7R Arkusz danych(HTML) 3 Page - Power-One |
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3 / 27 page  Cassette Style 100 Watt AC-DC Converters S Series PFC Edition 01/01.2001 3/27 Functional Description The input voltage is fed via an input fuse, an input filter, a rectifier and an inrush current limiter to a single transistor boost converter. This converter provides a sinusoidal input current (IEC/EN 61000-3-2, class D equipment) and sour- ces a capacitor with a voltage of 360-370 V DC. This ca- pacitor 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 an output filter. The control logic senses the main output voltage Uo1 and generates, with respect to the maximum admissible 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. P 2 Y 16 18 20 22 12 4 6 8 10 14 Y 1 28 30 32 24 3 – + Y Y + Ci 4 03001 R i D/V T S+ Vo+ Vo– S– 26 N ∼ P~ Fig. 1 Block diagram of single output converters LS 4000 1 P 2 16 18 20 22 12 14 4 6 8 10 26 28 30 32 24 3 – + Y Y Y Y Y Y + Ci 4 03002 N~ P~ R i D T Vo1+ Vo1– Vo2+ Vo2– Fig. 2 Block diagram of symmetrical double output converters LS 5000 1 Transient suppressor (VDR) 2 Inrush current limiter (NTC or Opt. E), -9 versions exclude the NTC 3 Input fuse 4 Hold-up capacitor |
Podobny numer części - LS4501-7R |
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Podobny opis - LS4501-7R |
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