Modeling of 3-level buck converters in discontinuous conduction mode for stand-by mode power supply
| Autor: | Yoshitaka Yamauchi, Toru Sai, Takayasu Sakurai, Makoto Takamiya |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Engineering Conduction mode business.industry Buck converter 020208 electrical & electronic engineering Mode (statistics) Discontinuous conduction 02 engineering and technology Voltage regulator 01 natural sciences Transfer function Power (physics) Application-specific integrated circuit Control theory 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electronic engineering business |
| Zdroj: | ISCAS |
| DOI: | 10.1109/iscas.2017.8050584 |
| Popis: | A 3-level buck converter in the discontinuous conduction mode (DCM) is a key circuit for integrated voltage regulators to achieve high efficiency at a light load in the stand-by mode operation of microprocessors. In this paper, fundamental circuit characteristics including the conversion ratio and transfer function are derived for the first time, enabling the design of controllers for 3-level buck converters in the DCM. The derived transfer function is verified by time-domain small-signal-injection simulation. Similar to conventional 2-level buck converters, 3-level buck converters in the DCM have a flrst-order lag transfer function, while 3-level buck converters in the continuous conduction mode (CCM) have a second-order lag transfer function, suggesting that different controllers are required for the DCM and CCM. |
| Databáze: | OpenAIRE |
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