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| Content Provider | IET Digital Library |
|---|---|
| Author | Wang, Jian Min Wu, Sen Tung |
| Abstract | The synchronous buck converter (SBC) with traditional pulse-width modulation has several disadvantages, such as poor efficiency at light loads. Therefore, this study proposes a new control technique for the SBC that allows power switches to operate with quasi-resonant valley switching in light load conditions. The voltage ripple produced during the capacitor charging and discharging processes is utilised to simulate an inductor current ripple, and thus the zero position of the inductor current can be emulated without requiring a current sensor. The technique has several advantages, including easily built-in integrated circuits. A 5-V/25-W SBC laboratory prototype was implemented to verify the feasibility of the proposed technology and control scheme, and the experimental findings were satisfactory. |
| Starting Page | 181 |
| Ending Page | 191 |
| Page Count | 11 |
| ISSN | 1751858X |
| Volume Number | 10 |
| e-ISSN | 17518598 |
| Issue Number | Issue 3, May (2016) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-cds/10/3 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-cds.2015.0194 |
| Journal | IET Circuits, Devices & Systems |
| Publisher Date | 2016-05-01 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Built-in Integrated Circuit Capacitor Capacitor Charging DC-DC Power Converter Discharging Process Inductor Inductor Current Ripple Inductors And Transformer Light Load Condition Power 25 W Power Electronics Power Supply Power Switch Pulse Width Modulation Quasiresonant Valley Switching Relay And Switches Sensorless Control Scheme Supervisory Circuit Switched Mode Converter Synchronous Buck Converter Voltage 5 V Voltage Ripple |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Electrical and Electronic Engineering |
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