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热词
    • 3. 发明授权
    • Power converter
    • 电源转换器
    • US06597589B2
    • 2003-07-22
    • US10017615
    • 2001-12-14
    • Kuo-Jung Wang
    • Kuo-Jung Wang
    • H02M3335
    • H02M1/4258H02M1/14H02M3/33523Y02B70/126
    • A power converter, and more particularly a switched AC/DC converter, is provided with an input current shaping (ICS) function. The ICS function is carried out by adjusting the conducting angle of the input current for a rectifier coupled to a central tap of a main transformer, thereby obtaining a higher power factor. Owing to the action of the ICS, the ripples in the feedback signal are usually larger. The ripples are used to modulate the switching frequency to effectively disperse and planarize the electromagnetic energy distribution of the power supply, and to suppress the electromagnetic interference problems of the power supply.
    • 功率转换器,特别是开关式AC / DC转换器,具有输入电流整形(ICS)功能。 ICS功能通过调整与主变压器的中央抽头相连的整流器的输入电流的导通角进行,从而获得更高的功率因数。 由于ICS的作用,反馈信号中的波纹通常较大。 波纹用于调制开关频率以有效地分散和平坦化电源的电磁能量分布,并抑制电源的电磁干扰问题。