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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Bhattacharyya, K. Kumar, P.V.R. Mandal, P. |
| Copyright Year | 2009 |
| Description | Author affiliation: E&ECE Department, IIT-Kharagpur, 721302, WB, India (Bhattacharyya, K.; Kumar, P.V.R.; Mandal, P.) |
| Abstract | This paper deals with the efficiency improvement of an embedded hybrid DC-DC converter which is suitable for high dropout embedded regulation. In the proposed topology, power efficiency is improved by eliminating shoot-through current of switched-Capacitor module using Non-overlapped Rotational Time Interleaving (NRTI) switching scheme. In addition to the improvement in power efficiency, this scheme also reduces output voltage ripple. As the output of the switched capacitor network is a function of load current and switching frequency, the switched capacitor network is cascaded with a linear regulator to get line and load regulation. The proposed hybrid converter circuit is designed in 0.18µ process for 3.3V to 1.25V conversion. With total flying capacitance of 330pF, for 15.5 mA of load current and 50pF load capacitor, peak-peak output voltage ripple is only 6 mV and the achieved power efficiency is 70% |
| Starting Page | 945 |
| Ending Page | 948 |
| File Size | 587509 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424444793 |
| ISSN | 15483746 |
| DOI | 10.1109/MWSCAS.2009.5235922 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-08-02 |
| Publisher Place | Mexico |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | DC-DC power converters Voltage Switching converters Regulators Switched capacitor networks Switching frequency Switching loss Interleaved codes Circuits Dynamic range |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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