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2011•Unpublished venueRequires access

AC/DC notebook adapter with 22mW no-load power consumption

Byoung-Hee Lee, Byoung-Woo Ryu, Seong‐Wook Choi, Gun‐Woo Moon

Open publisher page 13 citations

Abstract

An AC/DC notebook adapter with reduced no-load power consumption is proposed in this paper. During no-load condition, a lower limit of the output voltage is further lowered to reduce feedback circuit loss at the secondary side. Moreover, control-IC on/off scheme is employed to reduce power consumption of control-IC. As a result, the proposed AC/DC adapter of 65 W/17.5 V prototype can reduce the no-load power consumption under 30 mW. Operational principles and experimental results are presented to verify the feasibility of the proposed AC/DC adapter. Moreover, loss analysis of AC/DC adapter at no-load condition is also provided.

About this research paper

What this paper is about

An AC/DC notebook adapter with reduced no-load power consumption is proposed in this paper. During no-load condition, a lower limit of the output voltage is further lowered to reduce feedback circuit loss at the secondary side. Moreover, control-IC on/off scheme is employed to reduce power consumption of control-IC. As a result, the proposed AC/DC adapter of 65 W/17.5 V prototype can reduce the no-load power consumption under 30 mW. Operational principles and experimental results are presented to verify the feasibility of the proposed AC/DC adapter. Moreover, loss analysis of AC/DC adapter at no-load condition is also provided.

Why it matters

OpenAlex reports 13 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

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Method / approach

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Available abstract

An AC/DC notebook adapter with reduced no-load power consumption is proposed in this paper. During no-load condition, a lower limit of the output voltage is further lowered to reduce feedback circuit loss at the secondary side. Moreover, control-IC on/off scheme is employed to reduce power consumption of control-IC. As a result, the proposed AC/DC adapter of 65 W/17.5 V prototype can reduce the no-load power consumption under 30 mW. Operational principles and experimental results are presented to verify the feasibility of the proposed AC/DC adapter. Moreover, loss analysis of AC/DC adapter at no-load condition is also provided.

Key concepts: Adapter (computing), Power consumption, AC adapter, Electrical engineering, Voltage, Computer science, Power (physics), Electronic engineering

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