Embedded Single-Inductor Bipolar-Output DC–DC Converter in Class-D Amplifier for Low Common Noise
| Autor: | Tsung-Yen Tsai, Kuei-Liang Lin, Shao Siang Ng, Ke-Horng Chen, Tzu-Chi Huang, Shin-Hao Chen, Chao-Cheng Lee, Ying-Hsi Lin |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Total harmonic distortion
Engineering business.industry Amplifier 020208 electrical & electronic engineering Electrical engineering 02 engineering and technology Inductor 01 natural sciences Noise (electronics) law.invention 010101 applied mathematics law Power module Class-D amplifier 0202 electrical engineering electronic engineering information engineering Electronic engineering 0101 mathematics Electrical and Electronic Engineering Resistor business Electrical efficiency |
| Zdroj: | IEEE Transactions on Power Electronics. 31:3106-3117 |
| ISSN: | 1941-0107 0885-8993 |
| DOI: | 10.1109/tpel.2015.2446510 |
| Popis: | This paper proposes a high efficiency class-D amplifier (CDA) with embedded single-inductor bipolar output (SIBO) power module. The characteristics of SIBO converter's bipolar outputs not only suppress equivalent common-mode noise but also remove several large external bulky components in conventional boost supply CDA systems. Since bipolar outputs in the SIBO provide independent driving capability, CDA is capable of operating in both single-ended and bridge-tide load configurations. Furthermore, the proposed dynamic voltage boosting technique adjusts the SIBO output voltage level according to the CDA's output level with 5% power efficiency improvement. Peak total harmonic distortion plus noise performance is 0.012%. Peak power efficiency of SIBO and CDA is 89% and 93.2%, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|