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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PKB4000D датащи(PDF) 17 Page - Flex Power Modules. FLEX LTD. |
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PKB4000D датащи(HTML) 17 Page - Flex Power Modules. FLEX LTD. |
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17 / 28 page  EMC Specification Conducted EMI measured according to EN55022, CISPR 22 and FCC part 15J (see test set-up). See Design Note 029 for further information. The fundamental switching frequency is 415 kHz for PKB4313D. The EMI characteristics below is measured at VI = 53 V and max IO. Conducted EMI Input terminal value (typ) EMI without filter Optional external filter for class B Suggested external input filter in order to meet class B in EN 55022, CISPR 22 and FCC part 15J. Filter components: C1 = 2.2 µF C2 = 2.2 µF C3 = 2.2 µF + 220 µF (e-lyt) C4, C5 = 2x10 nF L1 = 0.59 mH L2 = 2.2 µH EMI with filter Test set-up Layout recommendations The radiated EMI performance of the product will depend on the PWB layout and ground layer design. It is also important to consider the stand-off of the product. If a ground layer is used, it should be connected to the output of the product and to the equipment ground or chassis. A ground layer will increase the stray capacitance in the PWB and improve the high frequency EMC performance. Output ripple and noise Output ripple and noise is measured according to figure below. See Design Note 022 for detailed information. Output ripple and noise test setup L1 C1 C2 C3 C4 C5 R - + Module + - 0 0 L2 PKB4000D series Fully regulated DC-DC Converters Input 36-75 V, Output up to 25 A / 300 W 28701-BMR674 01 Rev G July 2019 © Flex Technical Specification 17 |
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