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Single Inductor Multiple Output Auto-Buck-Boost DC–DC Converter with Error-Driven Randomized Control
| Content Provider | MDPI |
|---|---|
| Author | Park, Hyunbin Kim, Shiho |
| Copyright Year | 2020 |
| Description | We propose a single inductor multiple output (SIMO) auto-buck-boost DC–DC converter with error-driven randomized control (EDRC). The conventional controls in a SIMO DC–DC converter supply power to outputs that have been selected in a sequential order. Furthermore, they control the inductor current levels at either edge of a switching period in a steady state to be at the same level to alleviate cross-regulation. However, this limits the flexibility of the converter to respond to changes in load requirements. A sequential selection of light loads results in these loads being selected more often than a load demand, degrading the efficiency for light loads. In addition, limited flexibility leads to delayed responses. This paper introduces an auto-buck-boost topology that selects outputs based on output errors, and instantaneously adjusts the inductor current level. Moreover, we propose a technique for allowing any output to avoid selection when all outputs are fully supplied. The proposed EDRC scheme achieves improvements in efficiency in regards to light loads, cross-regulation, and output driving capability. |
| Starting Page | 1335 |
| e-ISSN | 20799292 |
| DOI | 10.3390/electronics9091335 |
| Journal | Electronics |
| Issue Number | 9 |
| Volume Number | 9 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-08-19 |
| Access Restriction | Open |
| Subject Keyword | Electronics Energy and Fuel Technology Industrial Engineering Auto-buck-boost Output Error-driven Randomized Control (edrc) Single-inductor Multiple-output (simo) Dc–dc Converters |
| Content Type | Text |
| Resource Type | Article |
