DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 김현식 | - |
dc.contributor.author | Bae, Hong-Hyun | - |
dc.contributor.author | 배홍현 | - |
dc.date.accessioned | 2024-08-08T19:31:41Z | - |
dc.date.available | 2024-08-08T19:31:41Z | - |
dc.date.issued | 2024 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=1100083&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/322177 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 전기및전자공학부, 2024.2,[iv, 56 p. :] | - |
dc.description.abstract | This paper introduces a novel hybrid voltage regulator, combining a buck stage with a shunt stage, designed to optimize Dynamic Voltage Scaling (DVS) and maximize dynamic efficiency. For achieving optimal DVS, this paper presents a buck converter assisted by an Isosceles-Triangular Shunt Current (ITSC) push-pull stage. The ITSC facilitates precise control of DVS through a simple turning-point (V$_T$), and accelerates DVS rates independently of the inductance (L). The Current-Tailing Handover (CTH) ensures minimal voltage fluctuations post-DVS, even under resistive loads. Real-time calibration of the VT-crossing point effectively mitigates various error factors that can lead to DVS inaccuracies. To minimize the loss from shunt stage, this paper also introduces a pioneering hybrid voltage regulator incorporating a class-G digital-shunt regulator. This approach shows the capabilities of the class-G digital shunt regulator to substantially reduce dropout voltage in the shunt stage. Furthermore, the incorporation of a current correlation between the inductor and shunt current, governed by the ratio β, significantly shortens the current handover time. The implementation of this hybrid technique results in a remarkable improvement in dynamic efficiency, with a boost of up to 12% observed when operating at a 13kHz DVS frequency. Notably, the proposed hybrid voltage regulator exhibits remarkable versatility, efficiently accommodating a broad range of DVS frequencies, extending up to 600kHz. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | 이종-병렬 전압 레귤레이터▼a동적 전압 변동▼a이등변-삼각 병렬 전류▼a터닝 포인트 전압▼a동적 효율▼a전류-추적 핸드오버▼aClass-g 병렬 레귤레이터 | - |
dc.subject | Hybrid voltage regulator▼aDVS▼aSimple VT▼aDynamic efficiency▼aCurrent handover▼aClass-G shunt stage | - |
dc.title | Design of hybrid voltage regulators for energy-efficient SoCs | - |
dc.title.alternative | 고성능 SoC의 에너지 효율화를 위한 전력관리 회로 설계 기법 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :전기및전자공학부, | - |
dc.contributor.alternativeauthor | Kim, Hyun-Sik | - |
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