公开(公告)号：US08618747B2

公开(公告)日：2013-12-31

申请号：US13044307

申请日：2011-03-09

申请人： Young-Bae Park ,  Sang Cheol Moon ,  Byoung Heon Kim ,  Hyung Min Kim

发明人： Young-Bae Park ,  Sang Cheol Moon ,  Byoung Heon Kim ,  Hyung Min Kim

IPC分类号： H05B37/02

CPC分类号： G05F1/70

摘要： The present invention relates to a power factor correction circuit and a driving method thereof. The power factor correction circuit refers to an inductor receiving an input voltage and supplying output power, a power switch connected to the inductor and controlling an inductor current flowing in the inductor, and an auxiliary coil coupled with the inductor with a predetermined turn ratio. The power factor correction circuit controls the output power by controlling a switching operation of the power switch, and counts the number of times that the inductor current reaches a predetermined maximum current to turn off the power switch when the count result reaches a predetermined short circuit threshold count.

摘要翻译： 本发明涉及功率因数校正电路及其驱动方法。 功率因数校正电路是指接收输入电压并提供输出功率的电感器，连接到电感器的电源开关和控制在电感器中流动的电感器电流，以及以预定匝数比与电感器耦合的辅助线圈。 功率因数校正电路通过控制电源开关的开关动作来控制输出功率，并且当计数结果达到预定的短路阈值时，对电感电流达到预定最大电流的次数进行计数以关断电源开关 计数。

公开(公告)号：US09088223B2

公开(公告)日：2015-07-21

申请号：US12730643

申请日：2010-03-24

申请人： Young-Bae Park ,  Sang Cheol Moon ,  Byoung Heon Kim

发明人： Young-Bae Park ,  Sang Cheol Moon ,  Byoung Heon Kim

IPC分类号： H02M1/42

CPC分类号： H02M1/4225 ,  H02M1/42 ,  Y02B70/126 ,  Y02P80/112

摘要： A power factor correction circuit includes an inductor, a power switch, and a power factor correction controller. The power factor correction controller receives information on an inductor voltage to control a switching operation of the power switch. The power factor controller estimates an input voltage according to the duty ratio of the power switch.

摘要翻译： 功率因数校正电路包括电感器，电源开关和功率因数校正控制器。 功率因数校正控制器接收关于电感器电压的信息以控制电源开关的开关操作。 功率因数控制器根据功率开关的占空比来估计输入电压。

公开(公告)号：US08513926B2

公开(公告)日：2013-08-20

申请号：US12912181

申请日：2010-10-26

申请人： Young-Bae Park ,  Sang Cheol Moon ,  Byoung Heon Kim

发明人： Young-Bae Park ,  Sang Cheol Moon ,  Byoung Heon Kim

IPC分类号： G05F5/00

CPC分类号： G05F1/70

摘要： The present invention relates to a power factor correction circuit and a driving method thereof. The power factor correction circuit receives an input voltage and maintains an output voltage at a constant level by controlling switching operation of a power switch connected to an inductor that supplies the output voltage. In this case, the power factor correction circuit controls switching operation of the power switch by differentiating a control structure for an output voltage respectively according to a stabilization period during which the output voltage is constantly maintained and a start-up period during which the output voltage is increased before being stabilized. In addition, the power factor correction circuit controls the switching operation of the power switch according to the control structure of the start-up period during a predetermined correction delay period from a time that the stabilization period starts.

摘要翻译： 本发明涉及功率因数校正电路及其驱动方法。 功率因数校正电路通过控制连接到提供输出电压的电感器的电源开关的开关操作来接收输入电压并将输出电压维持在恒定电平。 在这种情况下，功率因数校正电路根据输出电压恒定保持的稳定期间和输出电压的启动期间分别对输出电压进行微分控制结构来控制电源开关的切换动作 在稳定前增加。 此外，功率因数校正电路根据稳定期开始时的预定的校正延迟期间内的启动期间的控制结构来控制电源开关的切换动作。

公开(公告)号：US08564257B2

公开(公告)日：2013-10-22

申请号：US12912329

申请日：2010-10-26

申请人： Young-Bae Park ,  Sang Cheol Moon ,  Byoung Heon Kim ,  Byung Kwon Choi ,  Cheng Sung Chen

发明人： Young-Bae Park ,  Sang Cheol Moon ,  Byoung Heon Kim ,  Byung Kwon Choi ,  Cheng Sung Chen

IPC分类号： G05F1/40 ,  G05F5/00

CPC分类号： H02M1/4225 ,  H02M1/32 ,  Y02B70/126

摘要： The present invention relates to a power factor correction circuit and a driving method thereof.The power factor correction circuit includes a power switch controlling an inductor current flowing in an inductor, an auxiliary inductor coupled to the inductor with a predetermined turn ratio, and a power factor correction controller controlling output power by controlling a switching operation of the power switch.The power factor correction controller determines whether or not an output voltage of the output power is an over-voltage by using the sum of a source current and a sink current that control a zero current detection voltage to be included within a predetermined clamping range, the zero current detection voltage corresponding to an auxiliary voltage that is a both-end voltage of an auxiliary inductor.

摘要翻译： 本发明涉及功率因数校正电路及其驱动方法。 功率因数校正电路包括控制在电感器中流动的电感器电流的电源开关，以预定匝数比耦合到电感器的辅助电感器，以及通过控制电源开关的开关操作来控制输出功率的功率因数校正控制器。 功率因数校正控制器通过使用控制零电流检测电压的源极电流和吸收电流之和来计算输出功率的输出电压是否为过电压，该预定钳位范围是 对应于作为辅助电感器的两端电压的辅助电压的零电流检测电压。