Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Wong, Oi-Ying | en_US |
dc.contributor.author | Chen, Po-Hung | en_US |
dc.date.accessioned | 2019-04-02T05:58:27Z | - |
dc.date.available | 2019-04-02T05:58:27Z | - |
dc.date.issued | 2019-02-01 | en_US |
dc.identifier.issn | 0885-8993 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1109/TPEL.2018.2833881 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/148635 | - |
dc.description.abstract | This paper presents a compact and fully integrated switched-capacitor voltage doubler for voltage boosting in photovoltaic-powered implantable devices. Gate-voltage boosting, nonoverlapping, and interleaving techniques are adopted to enhance the driving capability of the voltage doubler at low supply voltage with high efficiency. A dual-mode three-dimensional (3-D) digital control circuit is proposed to regulate the output voltage under the load current variation. The 3-D control on the number of active converter cells, operation frequency, and ON-resistance enable fine output voltage regulation over a wide load current range without extensive device segmentation, thereby reducing the routing complexity and the associated parasitic losses. Other advantages are that the switching loss can be proportionally scaled with the load current for high power efficiency and the periodic charge transfer to the output can keep small for small voltage ripple. Pulse-skipping modulation is employed to allow the converter to operate under ultra-light load. The proposed voltage doubler is designed and implemented using 0.18 mu m-CMOS process. The measurement results demonstrate that the proposed converter can generate a voltage of 0.9 V from an input of 0.6 V, with a power efficiency of more than 60% within the output current range of 30440 mu A. The peak efficiency is 73% and the active area is 0.33 mm(2). These measurement results suggest that the proposed voltage doubler is suitable for voltage boosting at low voltage under the limited availability of power and area. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | Charge pump | en_US |
dc.subject | photovoltaic (PV) cell | en_US |
dc.subject | switch-capacitor (SC) dc-dc converter | en_US |
dc.subject | voltage regulation | en_US |
dc.title | Fully Integrated Voltage Doubler With Dual-Mode Three-Dimensional Load Regulation for On-Chip Photovoltaic-Powered Applications | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1109/TPEL.2018.2833881 | en_US |
dc.identifier.journal | IEEE TRANSACTIONS ON POWER ELECTRONICS | en_US |
dc.citation.volume | 34 | en_US |
dc.citation.spage | 1481 | en_US |
dc.citation.epage | 1491 | en_US |
dc.contributor.department | 電子工程學系及電子研究所 | zh_TW |
dc.contributor.department | 生醫電子轉譯研究中心 | zh_TW |
dc.contributor.department | Department of Electronics Engineering and Institute of Electronics | en_US |
dc.contributor.department | Biomedical Electronics Translational Research Center | en_US |
dc.identifier.wosnumber | WOS:000454346100040 | en_US |
dc.citation.woscount | 0 | en_US |
Appears in Collections: | Articles |