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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Zhuochao Sun Liter Siek |
| Copyright Year | 2011 |
| Description | Author affiliation: VIRTUS-IC Design Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798 (Zhuochao Sun; Liter Siek) |
| Abstract | To achieve high conversion efficiency, traditional DC-DC converters usually employ the hybrid-mode control, which is a combination of pulse-width modulation (PWM), pulse-frequency modulation (PFM) and pulse-skipping modulation (PSM) controllers. However, the hybrid-mode control does not maximize the efficiency because it only concerns about the load change of the converter under light-load condition, without taking the full range of load variation and the source voltage variation into consideration. In addition, a hybrid-mode controller also includes complex mode-switching circuit, which brings in more design difficulties. In this paper, a new ripple controlled modulation (RCM) is proposed. It aims to maximize the conversion efficiency with simple control. This is done by using a ripple controlling loop to optimize the switching frequency according to the converter output voltage ripple under all source and load conditions. |
| Starting Page | 238 |
| Ending Page | 241 |
| File Size | 170856 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781612848631 |
| e-ISBN | 9781612848655 |
| DOI | 10.1109/ISICir.2011.6131940 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-12-12 |
| Publisher Place | Singapore |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Ripple Controlled Modulation (RCM) Switching frequency dual-edge ramp Switching loss Switches Pulse width modulation Voltage control high efficiency DC-DC converter |
| Content Type | Text |
| Resource Type | Article |
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