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。

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：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：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：US08379423B2

公开(公告)日：2013-02-19

申请号：US12912481

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： H02M5/42 ,  H02M7/04 ,  G05F1/00

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

摘要： The present invention relates to a power factor correction circuit and a driving method thereof.The power factor correction circuit includes: an inductor for receiving an input voltage and supplying output power; a power switch connected to the inductor to control an inductor current flowing through the inductor; an auxiliary conductor coupled to the inductor with a predetermined turn ratio; and a power factor correction controller that controls the output power by controlling the switching operation of the power switch and determines whether or not the output voltage of the output power is an over-voltage. The power factor correction controller generates an input peak voltage corresponding to the peak of the input voltage by using a clamping current for maintaining an auxiliary voltage, which is the both-end voltage of the auxiliary inductor, at a predetermined clamping voltage during the turn-on period of the power switch so as to prevent the auxiliary voltage from becoming a negative voltage, generates a duty voltage corresponding to the duty of the power switch, and determines whether or not the output voltage is an over-voltage according to a result of comparison between the input peak voltage and the duty voltage.

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：用于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，用于控制流过电感器的电感电流; 以预定的匝数比耦合到电感器的辅助导体; 以及功率因数校正控制器，其通过控制电源开关的开关操作来控制输出功率，并且确定输出功率的输出电压是否是过电压。 功率因数校正控制器通过使用钳位电流来产生对应于输入电压峰值的输入峰值电压，该钳位电流在辅助电感器的转向期间以预定的钳位电压保持作为辅助电感器的两端电压的辅助电压， 在电源开关的接通期间，以防止辅助电压变为负电压，产生与电源开关的占空比相对应的占空比电压，并且根据结果，确定输出电压是否为过电压 输入峰值电压与占空比之间的比较。

公开(公告)号：US09520771B2

公开(公告)日：2016-12-13

申请号：US13239762

申请日：2011-09-22

申请人： Sang Cheol Moon ,  Young-Bae Park

发明人： Sang Cheol Moon ,  Young-Bae Park

IPC分类号： H02M3/335 ,  H02M1/42 ,  H02M1/00

CPC分类号： H02M1/4258 ,  H02M3/335 ,  H02M2001/0035 ,  Y02B70/126 ,  Y02B70/16

摘要： A power supply includes a rectifier for rectifying an AC line voltage to generate a link voltage, a link capacitor for charging the link voltage, a control switch for controlling charge of the link capacitor, a converter for converting the link voltage to a DC voltage, and a switch controller. When the converter operates in a standby operation mode, the switch controller controls on-off of the control switch through a pulse signal having an on-time determined based on a peak value of a detected AC line voltage.

摘要翻译： 电源包括用于整流交流线路电压以产生链路电压的整流器，用于对链路电压充电的链路电容器，用于控制链路电容器的充电的控制开关，用于将链路电压转换为直流电压的转换器， 和开关控制器。 当转换器在待机操作模式下工作时，开关控制器通过具有基于检测到的AC线路电压的峰值确定的导通时间的脉冲信号控制控制开关的导通。

公开(公告)号：US09685870B2

公开(公告)日：2017-06-20

申请号：US13899240

申请日：2013-05-21

申请人： Charlie Wang ,  Sang Cheol Moon ,  Young-Bae Park

发明人： Charlie Wang ,  Sang Cheol Moon ,  Young-Bae Park

IPC分类号： H02M3/335 ,  H02M1/42 ,  H02M5/293 ,  H02M1/00

CPC分类号： H02M3/33507 ,  H02M1/08 ,  H02M1/4258 ,  H02M1/44 ,  H02M5/293 ,  H02M2001/0009 ,  H02M2001/0032 ,  H02M2001/0035 ,  H02M2001/007 ,  Y02B70/126 ,  Y02B70/16

摘要： A power supply includes a phase-cut pre-regulator. The phase-cut pre-regulator comprises a switching device connected between a line voltage and an input voltage of a bulk capacitor and a comparator receiving the line voltage and a reference voltage, comparing the line voltage with hysteresis reference voltages based on the reference voltage, and switching the switching device according to the compared result.

公开(公告)号：US09354573B2

公开(公告)日：2016-05-31

申请号：US13339952

申请日：2011-12-29

申请人： Jae Hyuk Lim ,  Jae Myoung Choi ,  Sang Cheol Moon ,  Hyun Il Kim ,  Choong Kyu Park

发明人： Jae Hyuk Lim ,  Jae Myoung Choi ,  Sang Cheol Moon ,  Hyun Il Kim ,  Choong Kyu Park

IPC分类号： G03G15/16 ,  G03G15/20

CPC分类号： G03G15/2064 ,  G03G2215/2035

摘要： A fusing device and an image forming apparatus having the same are provided. The fusing device includes a position regulating device to regulate a position of a side frame which rotatably supports a fusing belt, thereby fixing a position of a fusing nip defined between the fusing belt, inside of which a heat source is placed, and a pressure roller arranged to face the fusing belt. The fusing device prevents shift of a recording medium delivery path due to deformation of the pressure roller.

摘要翻译： 提供了一种定影装置和具有该定影装置的图像形成装置。 定影装置包括位置调节装置，用于调节可转动地支撑定影带的侧框架的位置，从而固定限定在其内设有热源的定影带和压辊之间的定影辊隙的位置 安排面对定影带。 定影装置防止由于加压辊的变形引起的记录介质输送路径的移动。

公开(公告)号：US08710806B2

公开(公告)日：2014-04-29

申请号：US13238565

申请日：2011-09-21

申请人： Sang Cheol Moon ,  Hyun Min Kim ,  Sung-Won Yun ,  Min-Woo Lee

发明人： Sang Cheol Moon ,  Hyun Min Kim ,  Sung-Won Yun ,  Min-Woo Lee

IPC分类号： H01M10/44 ,  H01M10/46

CPC分类号： H02M1/36 ,  H02M1/126 ,  H02M2001/322

摘要： A power supply includes an input filter and a discharging device. The input filter includes a capacitor to which an AC power source is provided. The discharging device rectifies and samples the AC power source. The discharging device generates a reference voltage according to a peak voltage of a generated sampling signal, generates an AC power source cutoff detection signal according to a comparison signal generated by comparing the sampling signal and a reference voltage, and discharges the capacitor through a discharging resistor according to the AC power source cutoff detection signal.

摘要翻译： 电源包括输入滤波器和放电装置。 输入滤波器包括提供有交流电源的电容器。 放电装置对交流电源进行整流和采样。 放电装置根据产生的采样信号的峰值电压产生参考电压，根据通过比较采样信号和参考电压产生的比较信号产生交流电源截止检测信号，并通过放电电阻放电电容器 根据交流电源切断检测信号。

公开(公告)号：US08693216B2

公开(公告)日：2014-04-08

申请号：US13027760

申请日：2011-02-15

申请人： Sang Cheol Moon ,  Hyun-Chul Eom ,  Kwang-Il Lee

发明人： Sang Cheol Moon ,  Hyun-Chul Eom ,  Kwang-Il Lee

IPC分类号： H02M3/335 ,  H02M1/00

CPC分类号： H02M1/36 ,  H02M3/33523

摘要： The present invention relates to a switch control device, a power supply device, and a switch control method. A switch control device controls a switching operation of a power switch by using a feedback voltage of an output voltage. In detail, the switch control device generates the feedback current according to the feedback voltage and the feedback signal corresponding to the feedback voltage by using the feedback current. The switch control device compares the sensing signal corresponding to the drain current flowing to the power switch and the feedback signal, and turns off the power switch according to the comparison result. The switch control device increases the feedback gain rather than the feedback current during the gain compensation period after a predetermined gain compensation period, and the gain compensation period is longer than a soft start period in which the output voltage is gradually increased.

摘要翻译： 本发明涉及开关控制装置，电源装置和开关控制方法。 开关控制装置通过使用输出电压的反馈电压来控制电力开关的开关动作。 具体地，开关控制装置通过使用反馈电流根据反馈电压和对应于反馈电压的反馈信号来生成反馈电流。 开关控制装置将流过电源开关的漏极电流的感测信号与反馈信号进行比较，根据比较结果关闭电源开关。 开关控制装置在预定的增益补偿周期之后的增益补偿期间增加反馈增益而不是反馈电流，并且增益补偿周期长于输出电压逐渐增加的软启动时段。