DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Ji-Hun | ko |
dc.contributor.author | Bang, Jun-Suk | ko |
dc.contributor.author | Kim, Ki-Duk | ko |
dc.contributor.author | Gwon, Hui-Dong | ko |
dc.contributor.author | Park, Sang-Hui | ko |
dc.contributor.author | Huh, Yeunhee | ko |
dc.contributor.author | Yoon, Kye-Seok | ko |
dc.contributor.author | Baek, Jong-Beom | ko |
dc.contributor.author | Ju, Yong-Min | ko |
dc.contributor.author | Lee, Gibbeum | ko |
dc.contributor.author | Park, Homin | ko |
dc.contributor.author | Bae, Hyeon-Min | ko |
dc.contributor.author | Cho, Gyu-Hyeong | ko |
dc.date.accessioned | 2016-12-14T00:56:38Z | - |
dc.date.available | 2016-12-14T00:56:38Z | - |
dc.date.created | 2016-11-22 | - |
dc.date.created | 2016-11-22 | - |
dc.date.created | 2016-11-22 | - |
dc.date.issued | 2017-02 | - |
dc.identifier.citation | 64th IEEE International Solid-State Circuits Conference (ISSCC), pp.88 | - |
dc.identifier.issn | 0193-6530 | - |
dc.identifier.uri | http://hdl.handle.net/10203/214690 | - |
dc.description.abstract | As the portable device market tries to enhance user experience, high-power audio systems with boosted supply voltage have been the main design focus recently. Several past works have addressed issues related to boosted supply voltages [1,2]. Nevertheless, the power stage retained the classical H-bridge structure in the previous works, which resulted in aggravated electromagnetic interference (EMI) from high switching amplitude and poor efficiency due to voltage boosting. The use of multi-level pulse-width modulation (PWM) shown in Fig. 5.2.1 can naturally eliminate the complications caused by high supply voltages. Since the audio signal has a high crest factor, a multi-level Class-D amplifier draws most power directly from a low-voltage battery source, which in turn improves the power efficiency significantly [3]. Spread spectrum techniques prevent energy localization in the power spectral density [2]. Nevertheless, the diffusion of switching harmonics into the nearby frequencies complicates EMI management. However, the multi-level switching scheme suppresses EMI by reducing the switching amplitude without spreading the energy spectrum [4]. In this work, a new folded-PWM (FPWM) architecture implementing a multi-level H-bridge topology is presented. | - |
dc.language | English | - |
dc.publisher | IEEE | - |
dc.title | An 8Ω 10W 91%-Power-Efficiency 0.0023%-THD+N Multi-Level Class-D Audio Amplifier with Folded PWM | - |
dc.type | Conference | - |
dc.identifier.wosid | 000403393800030 | - |
dc.identifier.scopusid | 2-s2.0-85016295216 | - |
dc.type.rims | CONF | - |
dc.citation.beginningpage | 88 | - |
dc.citation.endingpage | 88 | - |
dc.citation.publicationname | 64th IEEE International Solid-State Circuits Conference (ISSCC) | - |
dc.identifier.conferencecountry | US | - |
dc.identifier.conferencelocation | San Francisco Marriott Marquis | - |
dc.identifier.doi | 10.1109/ISSCC.2017.7870274 | - |
dc.contributor.localauthor | Cho, Gyu-Hyeong | - |
dc.contributor.nonIdAuthor | Lee, Ji-Hun | - |
dc.contributor.nonIdAuthor | Bang, Jun-Suk | - |
dc.contributor.nonIdAuthor | Kim, Ki-Duk | - |
dc.contributor.nonIdAuthor | Gwon, Hui-Dong | - |
dc.contributor.nonIdAuthor | Park, Sang-Hui | - |
dc.contributor.nonIdAuthor | Huh, Yeunhee | - |
dc.contributor.nonIdAuthor | Yoon, Kye-Seok | - |
dc.contributor.nonIdAuthor | Baek, Jong-Beom | - |
dc.contributor.nonIdAuthor | Ju, Yong-Min | - |
dc.contributor.nonIdAuthor | Lee, Gibbeum | - |
dc.contributor.nonIdAuthor | Park, Homin | - |
dc.contributor.nonIdAuthor | Bae, Hyeon-Min | - |
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