Design of Laptop Power Adapter Circuit

Design of Laptop Power Adapter Circuit

In the design of laptop power adapter, the former stage is the power factor correction PFC converter; the after stage is DC/DC converter. The control part controls chip through an integrated PFC and PFM control integrated. In this two structures, the former stage PFC often using traditional inductor...

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Veröffentlicht in:Applied Mechanics and Materials 2013-09, Vol.427-429 (Mechanical Engineering, Industrial Electronics and Information Technology Applications in Industry), p.909-912
Hauptverfasser: Wang, Shu Hai, Chen, Shu Wang, Su, Yue
Format: Artikel
Sprache:eng
Schlagworte:
Adapters
Converters
Design factors
Direct current
Inductors
Laptop
Low cost
Power factor
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Zusammenfassung:In the design of laptop power adapter, the former stage is the power factor correction PFC converter; the after stage is DC/DC converter. The control part controls chip through an integrated PFC and PFM control integrated. In this two structures, the former stage PFC often using traditional inductor current critical conduction mode Boost converter to achieve sinusoidal input current to the whole form, thus reducing input current harmonics with a high power factor, keep a long time , simple structure and low cost.
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.427-429.909