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Multi-Cell Switch-Mode Power Amplifier with Closed-Loop Hybrid Output Voltage Filter
| Content Provider | Semantic Scholar |
|---|---|
| Author | Votzi, Helmut L. Ertl, Hans |
| Copyright Year | 2015 |
| Abstract | In this paper a promising novel output voltage filtering concept for multi-cell switch-mode power amplifiers is analyzed. The proposed hybrid filtering concept is based on a passive LC filter enhanced by a linear-mode correction stage of small rated power. Using this principle, also "sub-harmonic" (i.e. low-frequency) switching noise distortions (typically appearing in real interleaved multi-cell switching amplifiers) can be effectively suppressed which is not possible using conventional LC filters. Combining the new hybrid filtering approach with a switch-mode power amplifier formed by an arrangement of low-voltage MOSFET switching cells finally results in a power source of high output voltage precision at high efficiency rates. |
| Starting Page | 1 |
| Ending Page | 8 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://publik.tuwien.ac.at/files/PubDat_247291.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
