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    • 4. 发明授权
    • Apparatus and method for controlling power supplied to fixing unit
    • 用于控制提供给定影单元的电力的装置和方法
    • US07721121B2
    • 2010-05-18
    • US11588309
    • 2006-10-27
    • Jin-ha KimJoong-gi KwonJong-moon Choi
    • Jin-ha KimJoong-gi KwonJong-moon Choi
    • G06F1/26
    • G03G15/5004G03G15/2039G03G2215/20Y10T307/766
    • An apparatus and method for controlling the power supplied to a fixing unit are provided. The apparatus includes a voltage detector detecting a voltage of input power supplied to heat at least one heating lamp, a synch signal generator generating a synch signal in response to the detected voltage, a switching unit switching a supply path of the input power to be applied to the at least one heating lamp, and a controller having table information of temporal duty level values of the input power that is initially supplied, and outputting a control signal for controlling a switching operation of the switching unit using the generated synch signal and the table information, wherein the switching unit performs the switching operation corresponding to the control signal. Accordingly, by sequentially increasing the input power for initial heating of the heating lamps, flickering and harmonic characteristics of a display device can be reduced, and by setting the duty level values to supply the maximum input power within a certain time, an initial heating time of the heating lamps can be minimized.
    • 提供一种用于控制供给到定影单元的电力的装置和方法。 该装置包括检测供应给至少一个加热灯的输入电力的电压的电压检测器,响应于检测到的电压产生同步信号的同步信号发生器,切换单元切换要施加的输入功率的供应路径 至少一个加热灯,以及具有表信息的控制器,其具有最初提供的输入功率的时间占空比水平值,并且输出用于使用所产生的同步信号和表来控制切换单元的切换操作的控制信号 信息,其中切换单元执行与控制信号相对应的切换操作。 因此,通过依次增加加热灯的初始加热的输入功率,可以降低显示装置的闪烁和谐波特性,并且通过将占空比值设定为在一定时间内提供最大输入功率,初始加热时间 的加热灯可以最小化。
    • 6. 发明授权
    • Switching mode power supply and method for outputting voltage therefrom
    • 开关电源及其输出电压的方法
    • US07355870B2
    • 2008-04-08
    • US11371014
    • 2006-03-09
    • Jong-moon Choi
    • Jong-moon Choi
    • H05K7/20H02M3/335
    • H02M1/32H02M3/335
    • A switching mode power supply and a method for outputting voltage therefrom are provided, where a transformer receives rectified alternating current (AC) voltage and transforms a voltage value or a current value, a switching transistor is connected to one end of a first coil and controls a level of power supplied to the first coil, a heat sink is positioned adjacent to the switching transistor and attenuates electromagnetic wave noise of the switching transistor; and a capacitive device is set up in an electric power line connecting the heat sink to a first side grounding end coupled with the other end of the first coil of the transformer. Accordingly the switching mode power supply can be miniaturized while effectively attenuating the electromagnetic wave noise from the switching transistor.
    • 提供一种开关模式电源及其输出电压的方法,其中变压器接收整流交流(AC)电压并转换电压值或电流值,开关晶体管连接到第一线圈的一端并控制 提供给第一线圈的功率电平,散热器邻近开关晶体管定位,并且衰减开关晶体管的电磁波噪声; 并且在将散热器连接到与变压器的第一线圈的另一端耦合的第一侧接地端的电力线中设置电容性装置。 因此,开关模式电源可以小型化,同时有效地衰减来自开关晶体管的电磁波噪声。
    • 7. 发明申请
    • Power supply and image fixing system using the same
    • 电源和图像定影系统使用相同
    • US20070206968A1
    • 2007-09-06
    • US11588310
    • 2006-10-27
    • Jong-moon Choi
    • Jong-moon Choi
    • G03G15/00
    • G03G15/2014G03G15/5004
    • A power supply for use in an image fixing system is provided. The image fixing system includes first and second fixing lamps connected in series, a power supply unit supplying electric power, a power supply control unit controlling the supply of the electric power supplied from the power supply unit, a switching unit performing a switching operation according to a first effective voltage or a second effective voltage of the electric power and a dual voltage unit supplying the electric power to the first and second fixing lamps according to the switching result of the switching unit. Accordingly, by supplying a desired voltage to fixing lamps regardless of input electric power, it is not necessary to implement different types of fixing systems, thereby reducing manufacturing costs and time.
    • 提供了用于图像定影系统中的电源。 图像定影系统包括串联连接的第一固定灯和第二固定灯,供电电源单元,控制从电源单元供应的电力供应的电源控制单元,执行根据 电力的第一有效电压或第二有效电压以及根据开关单元的开关结果向第一和第二固定灯供电的双电压单元。 因此,无论输入电力如何,通过向固定灯提供期望的电压,不需要实施不同类型的定影系统,从而降低制造成本和时间。
    • 8. 发明授权
    • Multi-voltage power supply and electronic apparatus including the same
    • 多电压电源和包括其的电子设备
    • US09099927B2
    • 2015-08-04
    • US13334582
    • 2011-12-22
    • Jong-moon Choi
    • Jong-moon Choi
    • H02J3/00H02M3/335
    • H02M3/33561H02M3/33576H02M2001/0045Y10T307/297
    • A multi-voltage power supply including a transformer including a primary coil, a first secondary coil, and at least one second secondary coil, a first output unit to output a first output voltage by using a voltage transferred to the first secondary coil of the transformer, at least one second output unit to output at least one second output voltage by using a voltage transferred to the at least one second secondary coil of the transformer, and a power reduction mode controller to control the at least one second output unit to turn off independent of the first output unit according to an external control signal.
    • 一种多电压电源,包括包括初级线圈,第一次级线圈和至少一个第二次级线圈的变压器,第一输出单元,通过使用传递到变压器的第一次级线圈的电压来输出第一输出电压 ,至少一个第二输出单元,用于通过使用传递到所述变压器的至少一个第二次级线圈的电压来输出至少一个第二输出电压;以及功率降低模式控制器,用于控制所述至少一个第二输出单元关闭 根据外部控制信号独立于第一输出单元。
    • 9. 发明授权
    • Switching power source apparatus and control method thereof
    • 开关电源装置及其控制方法
    • US08030906B2
    • 2011-10-04
    • US12133591
    • 2008-06-05
    • Sung-jo JoJong-moon ChoiJee-hoon Jung
    • Sung-jo JoJong-moon ChoiJee-hoon Jung
    • G05F1/00
    • H03K17/567H03K17/0406H03K17/08148H03K17/168
    • A switching power source apparatus includes a storage unit to store energy obtained from input power supplied to the storage unit, and to output at least of the stored energy as output power; a first switch; a second switch connected in series with the first switch, the series connection of the first switch and the second switch being connected to the storage unit; and a voltage clamp unit to clamp a level of a voltage applied across the series connection of the first switch and the second switch to a predetermined voltage or less. The first switch is turned on while the second switch is still turned off, and then the second switch is turned on after the first switch has been turned on to supply the input power to the storage unit from the series connection of the first switch and the second switch.
    • 开关电源装置包括存储单元,用于存储从提供给存储单元的输入功率获得的能量,并且至少输出所存储的能量作为输出功率; 第一个开关 与第一开关串联的第二开关,第一开关和第二开关的串联连接到存储单元; 以及电压钳位单元,用于将施加在第一开关和第二开关的串联连接上的电压的电平钳位到预定电压以下。 当第二开关仍然关闭时,第一开关接通,然后在第一开关被接通之后第二开关被接通,以从第一开关和第一开关的串联连接向存储单元提供输入电力 第二个开关
    • 10. 发明申请
    • Switching mode power supply and a method of operating the power supply in a power save mode
    • 开关模式电源和在省电模式下操作电源的方法
    • US20070097715A1
    • 2007-05-03
    • US11397552
    • 2006-04-05
    • Jong-moon Choi
    • Jong-moon Choi
    • H02M3/335
    • H02M3/28H02M2001/0032H02M2001/008Y02B70/16Y10T307/406Y10T307/707Y10T307/713
    • A switching mode power supply and a method of operating the power supply in a power save mode. The switching mode power supply includes a first PWM controller and a second PWM controller that are driven by different driving voltages and control first and the second voltages to be output, respectively, a first transformer that is controlled by the first PWM controller to output the first voltage and having a primary coil, a secondary coil to induce the first voltage, and an auxiliary winding, and a rectifier that rectifies and smoothes a current flowing through the auxiliary winding of the first transformer, generates a power save mode voltage based on the respective driving voltages of the first and the second PWM controllers, and supplies the power save mode voltage to the first and the second PWM controllers. Accordingly, the power save mode is operated using a voltage difference without requiring an extra controller.
    • 开关模式电源以及以省电模式操作电源的方法。 开关模式电源包括第一PWM控制器和第二PWM控制器,第一PWM控制器和第二PWM控制器分别由不同的驱动电压驱动并且首先控制以输出第二电压;第一变压器,其由第一PWM控制器控制以输出第一 电压并具有初级线圈,用于感应第一电压的次级线圈和辅助绕组;以及整流器,其对流过第一变压器的辅助绕组的电流进行整流和平滑,基于相应的电压产生省电模式电压 驱动第一和第二PWM控制器的电压,并将节电模式电压提供给第一和第二PWM控制器。 因此,省电模式使用电压差进行操作,而不需要额外的控制器。