التفاصيل البيبلوغرافية
| العنوان: |
Multiphase Optimal Response Mixed-signal Current Program Mode Controller |
| المؤلفون: |
Alico, Jurgen |
| Thesis Advisors: |
Prodic, Aleksandar |
| سنة النشر: |
2009 |
| المجموعة: |
University of Toronto |
| مصطلحات موضوعية: |
power converters, digital control, current program mode, multiphase switch mode power supplies |
| Time: |
0544 |
| الوصف: |
The primary focus of this thesis is to present a simple and practical implementation of an optimal-time response controller for multiphase interleaved dc-dc SMPS. This novel solution enables equal current sharing between phases not only in steady-state, but also during load transients, as well as bump-less transition between those two states. A digital voltage loop and multiple analog peak current programmed mode current loops are combined to implement a capacitor charge balance control algorithm with fairly simple hardware. This algorithm provides recovery from a disturbance in a single on-off switching action, which is performed in virtually the fastest possible time. The hybrid interface between the loops is provided through a structure combining a sample-and-hold circuit and a relatively slow successive-approximation DAC that provides control signals for all the loops in the system. Furthermore, for operation under light load conditions, the controller automatically switches into simply implemented pulse-frequency mode of operation. |
| Original Identifier: |
oai:tspace.library.utoronto.ca:1807/18135 |
| نوع الوثيقة: |
Thesis |
| الاتاحة: |
http://hdl.handle.net/1807/18135 |
| رقم الانضمام: |
edsndl.TORONTO.oai.tspace.library.utoronto.ca.1807.18135 |
| قاعدة البيانات: |
Networked Digital Library of Theses & Dissertations |