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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/49948

Title: New scheme to eliminate power loss of start-up resistor for low standby power consumption
Authors: T. C. Pan
Chun-Lung Chen
Y. L. Lin
C. M. Leng
Contributors: 國立臺灣海洋大學:輪機工程學系
Keywords: start-up resistor
standby power
depletion-type NMOS
Date: 2016-09
Issue Date: 2018-09-04T03:17:36Z
Publisher: IEICE Electronics Express
Abstract: Abstract: In the initial start-up period of power converter, there is no voltage supply from auxiliary winding to pulse-width-modulation (PWM) IC. Therefore, a typical method is connected with a start-up resistor (Rstart) between bridge rectifier and IC controller for initial voltage supply. However, the Rstart would continue to consume energy even if the auxiliary voltage has been set up. The proposed scheme uses depletion-type NMOS to connect with Rstart. The start-up mechanism can be guaranteed without any additional voltage, and naturally cut off the Rstart to minimize power dissipation once the voltage of PWM IC is supplied from auxiliary winding. As a result, the outstanding standby power performance can be implemented and comply the power regulation of 5 star standards of mobile charger. Experimental results demonstrate the standby power consumption only 28.8 mW.
Relation: 13(20)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/49948
Appears in Collections:[輪機工程學系] 期刊論文

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