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DER-113 Datasheet(PDF) 2 Page - Power Integrations, Inc. |
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DER-113 Datasheet(HTML) 2 Page - Power Integrations, Inc. |
2 / 25 page DER-113 5 W Charger for Portable Audio Player July 19, 2006 Page 2 of 25 Power Integrations Tel: +1 408 414 9200 Fax: +1 408 414 9201 www.powerint.com Table Of Contents 1 Introduction .................................................................................................................3 2 Power Supply Specification ........................................................................................4 3 Schematic ...................................................................................................................5 4 Circuit Description.......................................................................................................6 4.1 Primary clamp snubber........................................................................................6 4.2 Bias supply ..........................................................................................................6 4.3 CVCC circuit ........................................................................................................6 5 PCB Layout.................................................................................................................7 6 Bill Of Materials...........................................................................................................8 7 Transformer Specification ...........................................................................................9 7.1 Electrical Diagram................................................................................................9 7.2 Electrical Specifications .......................................................................................9 7.3 Materials ..............................................................................................................9 7.4 Transformer Build Diagram................................................................................10 7.5 Transformer Construction ..................................................................................10 8 Transformer Spreadsheets .......................................................................................11 9 Performance Data.....................................................................................................14 9.1 Efficiency ...........................................................................................................14 9.1.1 Active Mode CEC Measurement Data ........................................................15 9.2 No-load Input Power ..........................................................................................16 9.3 Regulation .........................................................................................................16 9.3.1 Output Characteristic..................................................................................16 10 Thermal Performance............................................................................................17 11 Waveforms ............................................................................................................18 11.1 Drain Voltage and Current, Normal Operation ...................................................18 11.2 Output Voltage Start-up Profile ..........................................................................18 11.3 Drain Voltage and Current Start-up Profile ........................................................19 11.4 Load Transient Response (75% to 100% Load Step)........................................20 11.5 Output Ripple Measurements ............................................................................21 11.5.1 Ripple Measurement Technique.................................................................21 11.5.2 Measurement Results.................................................................................22 12 Conducted EMI .....................................................................................................23 13 Revision History ....................................................................................................24 Important Note: Although this board is designed to satisfy safety isolation requirements, the engineering prototype has not been agency approved. Therefore, all testing should be performed using an isolation transformer to provide the AC input to the prototype board. |
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