Single‐stage AC–DC voltage regulator for 15 W wireless charging
A single‐stage AC–DC voltage regulator is proposed to enhance the power efficiency while at the same time reducing the design complicity of the entire system. Unlike the traditional two‐stage AC–DC regulator, a pulse‐width modulation control algorithm is integrated to switch the working mode of an a...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-03-01
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| Series: | Electronics Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/el.2016.4581 |
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| _version_ | 1832096709624201216 |
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| author | X. Bai Z. Kong L. Siek |
| author_facet | X. Bai Z. Kong L. Siek |
| author_sort | X. Bai |
| collection | DOAJ |
| description | A single‐stage AC–DC voltage regulator is proposed to enhance the power efficiency while at the same time reducing the design complicity of the entire system. Unlike the traditional two‐stage AC–DC regulator, a pulse‐width modulation control algorithm is integrated to switch the working mode of an active rectifier between a charging mode and a zero mode to maintain the output voltage at 5 V. This in turn efficiently eliminates the need for a DC–DC converter following the rectifier. Besides, a coupled full‐bridge active rectifier with high speed comparator dramatically reduces the power loss of the circuit. Experiment results using a 0.35 µm technology and a PCB circuit demonstrate the advantages of the proposed design. |
| format | Article |
| id | doaj-art-e04f290fae8346db8c3a081eb238e4a9 |
| institution | Kabale University |
| issn | 0013-5194 1350-911X |
| language | English |
| publishDate | 2017-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj-art-e04f290fae8346db8c3a081eb238e4a92025-02-05T12:30:43ZengWileyElectronics Letters0013-51941350-911X2017-03-0153533733910.1049/el.2016.4581Single‐stage AC–DC voltage regulator for 15 W wireless chargingX. Bai0Z. Kong1L. Siek2School of Electrical and Electronic EngineeringNanyang Technological UniversitySingapore639798SingaporeSchool of Electrical and Electronic EngineeringNanyang Technological UniversitySingapore639798SingaporeSchool of Electrical and Electronic EngineeringNanyang Technological UniversitySingapore639798SingaporeA single‐stage AC–DC voltage regulator is proposed to enhance the power efficiency while at the same time reducing the design complicity of the entire system. Unlike the traditional two‐stage AC–DC regulator, a pulse‐width modulation control algorithm is integrated to switch the working mode of an active rectifier between a charging mode and a zero mode to maintain the output voltage at 5 V. This in turn efficiently eliminates the need for a DC–DC converter following the rectifier. Besides, a coupled full‐bridge active rectifier with high speed comparator dramatically reduces the power loss of the circuit. Experiment results using a 0.35 µm technology and a PCB circuit demonstrate the advantages of the proposed design.https://doi.org/10.1049/el.2016.4581power 15 Wvoltage 5 Vsize 0.35 mumsingle‐stage AC‐DC voltage regulatorwireless charging modetwo‐stage AC‐DC voltage regulator |
| spellingShingle | X. Bai Z. Kong L. Siek Single‐stage AC–DC voltage regulator for 15 W wireless charging Electronics Letters power 15 W voltage 5 V size 0.35 mum single‐stage AC‐DC voltage regulator wireless charging mode two‐stage AC‐DC voltage regulator |
| title | Single‐stage AC–DC voltage regulator for 15 W wireless charging |
| title_full | Single‐stage AC–DC voltage regulator for 15 W wireless charging |
| title_fullStr | Single‐stage AC–DC voltage regulator for 15 W wireless charging |
| title_full_unstemmed | Single‐stage AC–DC voltage regulator for 15 W wireless charging |
| title_short | Single‐stage AC–DC voltage regulator for 15 W wireless charging |
| title_sort | single stage ac dc voltage regulator for 15 w wireless charging |
| topic | power 15 W voltage 5 V size 0.35 mum single‐stage AC‐DC voltage regulator wireless charging mode two‐stage AC‐DC voltage regulator |
| url | https://doi.org/10.1049/el.2016.4581 |
| work_keys_str_mv | AT xbai singlestageacdcvoltageregulatorfor15wwirelesscharging AT zkong singlestageacdcvoltageregulatorfor15wwirelesscharging AT lsiek singlestageacdcvoltageregulatorfor15wwirelesscharging |