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1. 发明授权

US08085560B2 Power supply apparatus 失效
标题翻译：电源设备
公开(公告)号：US08085560B2
公开(公告)日：2011-12-27
申请号：US12103731
申请日：2008-04-16
申请人： Seung-hak Lee
发明人： Seung-hak Lee
IPC分类号： H02M3/335
CPC分类号： H02M3/33553
摘要： A power supply apparatus includes: a transformer which converts input power supplied to a primary winding to be induced to a secondary winding; a current detector which detects an output current of the secondary winding of the transformer; a voltage detector which detects an output voltage of the secondary winding of the transformer; a switch which adjusts the output voltage outputted by the transformer; and a controller which controls the switch to maintain output power obtained by multiplying the output current by output voltage, within a predetermined level.
摘要翻译：电源装置包括：变换器，其将提供给要感应的初级绕组的输入功率转换为次级绕组; 电流检测器，其检测变压器的次级绕组的输出电流; 电压检测器，其检测变压器的次级绕组的输出电压; 调整变压器输出的输出电压的开关; 以及控制器，其控制所述开关以将输出电流乘以输出电压获得的输出功率保持在预定水平。

2. 发明授权

US07817449B2 Power supply apparatus for attenuating noise 有权
标题翻译：用于衰减噪声的电源装置
公开(公告)号：US07817449B2
公开(公告)日：2010-10-19
申请号：US11872768
申请日：2007-10-16
申请人： Seung-hak Lee
发明人： Seung-hak Lee
IPC分类号： H02M1/12
CPC分类号： H02M1/44
摘要： A power supply to improve an EMI characteristic and an electronic device having the power supply. The power supply includes a power converter to convert an alternating current (AC) power applied from outside to a direct current (DC) power, a ground portion to supply a ground power to the power converter and a noise attenuator to reduce noise by blocking a harmonic current generated by a driving of the power converter from passing through the ground portion. Accordingly, the stable ground power can be supplied to the internal elements by avoiding the potential change of the ground power and the noise caused by the flow of the harmonic current can be reduced by shortening the harmonic current path. Therefore, the EMI characteristic can be improved.
摘要翻译：用于改善EMI特性的电源和具有电源的电子设备。电源包括电力转换器，用于将从外部施加的交流（AC）电力转换为直流（DC）电力，将接地部分提供给功率转换器的接地部分和噪声衰减器，以通过阻塞由功率转换器的驱动产生的谐波电流通过接地部分。因此，通过避免接地功率的电位变化，可以将稳定的接地功率提供给内部元件，并且可以通过缩短谐波电流路径来减小由谐波电流的流动引起的噪声。因此，可以提高EMI特性。

3. 发明授权

US08116104B2 Power supply apparatus with noise attenuator to reduce harmonic current and electronic device having the power supply apparatus 有权
标题翻译：带有噪声衰减器以减少谐波电流的电源装置和具有电源装置的电子装置
公开(公告)号：US08116104B2
公开(公告)日：2012-02-14
申请号：US12889677
申请日：2010-09-24
申请人： Seung-hak Lee
发明人： Seung-hak Lee
IPC分类号： H02M1/14
CPC分类号： H02M1/44
摘要： A power supply to improve an EMI characteristic and an electronic device having the power supply. The power supply includes a power converter to convert an alternating current (AC) power applied from outside to a direct current (DC) power, a ground portion to supply a ground power to the power converter and a noise attenuator to reduce noise by blocking a harmonic current generated by a driving of the power converter from passing through the ground portion. Accordingly, the stable ground power can be supplied to the internal elements by avoiding the potential change of the ground power and the noise caused by the flow of the harmonic current can be reduced by shortening the harmonic current path. Therefore, the EMI characteristic can be improved.
摘要翻译：用于改善EMI特性的电源和具有电源的电子设备。电源包括电力转换器，用于将从外部施加的交流（AC）电力转换为直流（DC）电力，将接地部分提供给功率转换器的接地部分和噪声衰减器，以通过阻塞由功率转换器的驱动产生的谐波电流通过接地部分。因此，通过避免接地功率的电位变化，可以将稳定的接地功率提供给内部元件，并且可以通过缩短谐波电流路径来减小由谐波电流的流动引起的噪声。因此，可以提高EMI特性。

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