An ultra-compact three-port dc/dc converter / (Record no. 62475)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02811cam a2200337 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223031811.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 170923s2017 ua dh f m 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EG-GiCUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GiCUC |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 049 ## - LOCAL HOLDINGS (OCLC) | |
| Holding library | Deposite |
| 097 ## - Thesis Degree | |
| Thesis Level | Ph.D |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | Cai01.13.07.Ph.D.2017.Am.U |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Amr Sayed Taha Meabed |
| 245 13 - TITLE STATEMENT | |
| Title | An ultra-compact three-port dc/dc converter / |
| Statement of responsibility, etc. | Amr Sayed Taha Meabed ; Supervised Essam Mohamed Abul Zahab , Abdelmoamen Osama Mahgoub |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | محول تيار مستمر ثلاثى المنافذ فائق الصغر |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Amr Sayed Taha Meabed , |
| Date of publication, distribution, etc. | 2017 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 90 P. : |
| Other physical details | charts , facsimiles ; |
| Dimensions | 30cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (Ph.D.) - Cairo University -Faculty of Engineering - Department of Electrical Power and Machines Engineering |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The need for compact size DC power sources is increasingly rising. Several industrial and information technology (IT) sectors demand power supply designers to reduce the overall power supply size while increasing its efficiency. All power supply subsystems are subject to intensive research where their size and efficiency are optimized. The inductive components represent a significant percentage of the total power supply volume. The most common technique to reduce their size is by increasing the switching frequency either directly or through interleaving. In the current work, a different approach is followed. In this work, the core permeability is increased instead. Improving relative permeability of the ferrite cores used in switch-mode power supplies (SMPS) is a challenging task to reduce the requirements of the core size in the circuit. Two methods are introduced in this work. The first method is magnetic shaking that is widely used in shielding applications. An AC component is added to the core of the winding used in SMPS. The relative permeability is improved, causing the inductance of the coil to increase. However, the method is facing some technical difficulties to be integrated in the power circuit. Another method is also introduced by adding a DC magnetic field component equivalent to the DC flux component of the main winding in SMPS. This brings the operating point from the non-linear near saturation region to the more linear region. This not only keeps the inductance constant, but also causes a significant increase in its value |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | DC/DC Converter |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Magnetic Shaking |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Solar Street Lighting |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Abdelmoamen Osama Mahgoub , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Essam Mohamed Abul Zahab , |
| Relator term | |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://172.23.153.220/th.pdf">http://172.23.153.220/th.pdf</a> |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Nazla |
| Reviser | Revisor |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Shimaa |
| Reviser | Cataloger |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Source of classification or shelving scheme | Not for loan | Home library | Current library | Date acquired | Full call number | Barcode | Date last seen | Koha item type | Copy number |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 11.02.2024 | Cai01.13.07.Ph.D.2017.Am.U | 01010110072803000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.13.07.Ph.D.2017.Am.U | 01020110072803000 | 22.09.2023 | CD - Rom | 72803.CD |