公开(公告)号：US20070217236A1

公开(公告)日：2007-09-20

申请号：US11470321

申请日：2006-09-06

申请人： Sun-Kyoung LIM ,  Dai-Hyun KIM ,  Hag-Wone KIM

发明人： Sun-Kyoung LIM ,  Dai-Hyun KIM ,  Hag-Wone KIM

IPC分类号： H02M1/12

CPC分类号： H02M1/4208 ,  H02M2001/007 ,  Y02B70/126

摘要： An apparatus and method for supplying a direct current power source capable of compensating a power factor of an input power source by increasing and decreasing energy required by load changes, the apparatus comprising: an input current detecting unit for detecting an input current amount to determine a load size, a switching control unit for outputting a switching control signal to compensate a power factor of an input power source based upon the determined load size, a filtering/rectifying unit for reducing a harmonic of the input current and rectifying an input AC voltage, a power factor compensating unit for supplying charged energy to the load based upon the switching control signal, a smoothing unit for smoothing the rectified input AC voltage into a DC voltage, and an inverter for converting the smoothed DC voltage into an AC voltage and outputting the converted AC voltage to drive the load, whereby the power factor compensation (PFC) standard can be satisfied although the load is increased, and a fabricating cost can be reduced by using a reactor with a low capacity.

摘要翻译： 一种用于提供能够通过增加和减少负载变化所需的能量来补偿输入电源的功率因数的直流电源的装置和方法，所述装置包括：输入电流检测单元，用于检测输入电流量以确定 负载大小;开关控制单元，用于输出开关控制信号，以基于所确定的负载大小来补偿输入电源的功率因数;滤波/整流单元，用于降低输入电流的谐波并整流输入AC电压; 功率因数补偿单元，用于基于切换控制信号向负载提供充电能量;平滑单元，用于将整流后的输入AC电压平滑化为直流电压;以及逆变器，用于将平滑的直流电压转换为交流电压，并输出 转换交流电压来驱动负载，从而尽管负载能够满足功率因数补偿（PFC）标准 并且可以通过使用具有低容量的反应器来降低制造成本。

公开(公告)号：US20070217233A1

公开(公告)日：2007-09-20

申请号：US11532550

申请日：2006-09-18

申请人： Sun-Kyoung LIM ,  Dai-Hyun KIM ,  Hag-Wone KIM

发明人： Sun-Kyoung LIM ,  Dai-Hyun KIM ,  Hag-Wone KIM

IPC分类号： H02M1/12

CPC分类号： H02M1/4208 ,  H02M5/4585 ,  Y02B70/126

摘要： An apparatus and method for supplying a direct current power source which is capable of compensating a power factor of an input power source by detecting an input current amount according to load changes, the apparatus comprising an input current detecting unit for detecting an input current amount to determine a load size, a power factor control unit for outputting a power factor control signal and an input current amount control signal according to the determined load size, an input current refluxing unit for refluxing the input current by cutting off an input power source based upon the input current amount control signal, an active filter for reducing a harmonic of the input current, rectifying an input alternating current (AC) voltage and boosting a smoothing voltage, a power factor compensating unit for supplying charged energy to the load based upon the power factor control signal, a smoothing unit for smoothing the rectified input AC voltage into a direct current (DC) voltage, and an inverter for converting the smoothed DC voltage into an AC voltage, whereby a power factor compensation (PFC) spec can be satisfied although the load is increased and fabricating cost can be decreased by allowing the use of a reactor with a low capacity.

摘要翻译： 一种用于提供直流电源的装置和方法，该直流电源能够通过根据负载变化检测输入电流量来补偿输入电源的功率因数，该装置包括：输入电流检测单元，用于检测输入电流量 确定负载大小，功率因数控制单元，用于根据确定的负载大小输出功率因数控制信号和输入电流量控制信号;输入电流回流单元，用于基于输入电源切断输入电源来回流输入电流 输入电流量控制信号，用于降低输入电流谐波的有源滤波器，整流输入交流（AC）电压和提升平滑电压;功率因数补偿单元，用于基于功率向负载提供充电能量 因子控制信号，用于将整流后的输入交流电压平滑化为直流（DC）电压的平滑单元， 以及用于将平滑的DC电压转换为AC电压的逆变器，由此尽管负载增加并且可以通过允许使用具有低容量的电抗器来降低制造成本，但是可以满足功率因数补偿（PFC）规范。