公开(公告)号：US09287777B2

公开(公告)日：2016-03-15

申请号：US13826872

申请日：2013-03-14

Applicant: Samsung Electro-Mechanics Co., Ltd.

Inventor： Jong Tae Hwang ,  Chan Woo Park ,  Sang Hyun Cha ,  Deuk Hee Park ,  Yun Joong Lee

IPC: H02M3/157 ,  H05B33/08

CPC classification number: H02M3/157 ,  H05B33/0815 ,  Y02B20/347

Abstract: The present invention relates to an average current controller, an average current control method and a buck converter using the average current controller. The average current controller includes a first comparator for generating a high H signal, a multivibrator for generating a TAVG pulse signal by receiving a high H signal outputted from the first comparator, a timing generator for generating a signal CH_ON to charge/discharge a capacitor by using at least the TAVG pulse signal, an integrator circuit unit for charging/discharging the capacitor, a second comparator for outputting a corresponding signal, an up/down counter for increasing or decreasing a counting value and a digital/analog converter for outputting by converting an output (digital signal) of the up/down counter into an analog signal.

Abstract translation: 本发明涉及使用平均电流控制器的平均电流控制器，平均电流控制方法和降压转换器。 平均电流控制器包括用于产生高H信号的第一比较器，用于通过接收从第一比较器输出的高H信号产生TAVG脉冲信号的多谐振荡器，产生用于对电容器进行充电/放电的信号CH_ON的定时发生器 至少使用TAVG脉冲信号，用于对电容器进行充电/放电的积分器电路单元，用于输出相应信号的第二比较器，用于增加或减少计数值的上/下计数器和用于通过转换输出的数字/模拟转换器 将上/下计数器的输出（数字信号）输入到模拟信号中。

公开(公告)号：US08975824B2

公开(公告)日：2015-03-10

申请号：US13723163

申请日：2012-12-20

Applicant: Samsung Electro-Mechanics Co., Ltd.

Inventor： Yun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

IPC: H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  G05F1/00 ,  H05B33/08

CPC classification number: H05B37/02 ,  H05B33/0815 ,  Y02B20/346

Abstract: Provided is a PWM driving circuit and a PWM driving method. The PWM driving circuit includes a dimmer switching unit turning on a first switch to apply a first reference signal varied according to an input voltage of a system when an output voltage level of a dimmer is a reference level or less, and turning on a second switch to apply a second reference signal, unrelated to the input voltage of the system, when the output voltage level of the dimmer is more than the reference level, an error amplification unit comparing the first reference signal or the second reference signal with an output detection signal to amplify an error and outputting an error amplification signal, and a PWM control signal generating unit comparing the error amplification signal of the error amplification unit with a predetermined reference waveform to output a PWM control signal.

Abstract translation: 提供了PWM驱动电路和PWM驱动方法。 PWM驱动电路包括：调光开关单元，当第一开关接通时，当调光器的输出电压电平为基准电平或更小时，施加根据系统的输入电压而变化的第一参考信号，以及接通第二开关 当所述调光器的输出电压电平大于所述参考电平时，施加与所述系统的输入电压无关的第二参考信号，将所述第一参考信号或所述第二参考信号与输出检测信号进行比较的误差放大单元 放大误差并输出误差放大信号;以及PWM控制信号生成单元，将误差放大单元的误差放大信号与规定的基准波形进行比较，输出PWM控制信号。

公开(公告)号：US20130162164A1

公开(公告)日：2013-06-27

申请号：US13723163

申请日：2012-12-20

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Yun Joong Lee ,  Deuk Hee Park ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

IPC: H05B37/02

CPC classification number: H05B37/02 ,  H05B33/0815 ,  Y02B20/346

Abstract: Provided is a PWM driving circuit and a PWM driving method. The PWM driving circuit includes a dimmer switching unit turning on a first switch to apply a first reference signal varied according to an input voltage of a system when an output voltage level of a dimmer is a reference level or less, and turning on a second switch to apply a second reference signal, unrelated to the input voltage of the system, when the output voltage level of the dimmer is more than the reference level, an error amplification unit comparing the first reference signal or the second reference signal with an output detection signal to amplify an error and outputting an error amplification signal, and a PWM control signal generating unit comparing the error amplification signal of the error amplification unit with a predetermined reference waveform to output a PWM control signal.

Abstract translation: 提供了PWM驱动电路和PWM驱动方法。 PWM驱动电路包括：调光开关单元，当第一开关接通时，当调光器的输出电压电平为基准电平或更小时，施加根据系统的输入电压而变化的第一参考信号，以及接通第二开关 当所述调光器的输出电压电平大于所述参考电平时，施加与所述系统的输入电压无关的第二参考信号，将所述第一参考信号或所述第二参考信号与输出检测信号进行比较的误差放大单元 放大误差并输出误差放大信号;以及PWM控制信号生成单元，将误差放大单元的误差放大信号与规定的基准波形进行比较，输出PWM控制信号。

公开(公告)号：US09232580B2

公开(公告)日：2016-01-05

申请号：US14146229

申请日：2014-01-02

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Yun Joong Lee ,  Je Hyeon Yu ,  Chang Seok Lee ,  Chan Woo Park

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0851

Abstract: Disclosed herein is a voltage control circuit for a dimmer and a dimming method. In accordance with an embodiment, the dimming method using a voltage control circuit for a dimmer includes the steps of determining whether a current voltage value input to a constant dimming range maintainer is equal to a preset minimum or maximum voltage value or exists between the minimum and maximum voltage values, and determining whether the current voltage value is greater than the maximum voltage value when the current voltage value isn't equal to the minimum or maximum voltage value or doesn't exist between the minimum and maximum voltage values. The method further includes the steps of updating the minimum voltage value to the current voltage value when the current voltage value isn't greater than the maximum voltage value, and updating the maximum voltage value to the current voltage value when the current voltage value is greater than the maximum voltage value.

Abstract translation: 这里公开了一种用于调光器和调光方法的电压控制电路。 根据实施例，使用用于调光器的电压控制电路的调光方法包括以下步骤：确定输入到恒定调光范围保持器的当前电压值是否等于预设的最小或最大电压值，或者存在于最小和最小值之间 最大电压值，并且当当前电压值不等于最小或最大电压值或者在最小和最大电压值之间不存在时，确定当前电压值是否大于最大电压值。 该方法还包括当当前电压值不大于最大电压值时将最小电压值更新为当前电压值的步骤，以及当当前电压值较大时将最大电压值更新为当前电压值 超过最大电压值。

公开(公告)号：US09204506B2

公开(公告)日：2015-12-01

申请号：US14288134

申请日：2014-05-27

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Sang Hyun Cha ,  Yun Joong Lee ,  Je Hyeon Yu

IPC: H05B41/34 ,  H05B33/08 ,  H05B39/09

CPC classification number: H05B33/0815 ,  H05B33/0803 ,  H05B33/0851 ,  H05B41/34 ,  Y02B20/346

Abstract: A light emitting diode (LED) driving apparatus includes a power converting unit and a driving controlling unit. The power converting unit switches input power to supply driving power to at least one LED. In one example, the driving controlling unit controls the supplying of the power based on a switching period of the power converting unit and a demagnetization time in the switching period. In another example, the driving controlling unit controls the supplying of the power based on the input power, a switching period of the power converting unit, and a drain voltage by the switching.

Abstract translation: 发光二极管（LED）驱动装置包括功率转换单元和驱动控制单元。 电力转换单元切换输入电力以向至少一个LED提供驱动电力。 在一个示例中，驱动控制单元基于电力转换单元的切换周期和切换期间的去磁时间来控制电力的供给。 在另一示例中，驱动控制单元通过切换来控制基于输入功率的电力供应，功率转换单元的开关周期和漏极电压。

公开(公告)号：US09066399B2

公开(公告)日：2015-06-23

申请号：US13839145

申请日：2013-03-15

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD. ,  UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION

Inventor： Deuk Hee Park ,  Joong Ho Choi ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee ,  Yun Joong Lee

IPC: H05B37/00 ,  H05B39/00 ,  H05B41/00 ,  H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/083

Abstract: There is provided an illumination driving apparatus for a light emitting diode, the apparatus including: a light emitting unit including M number of light emitting diodes (LEDs) connected in series and driven by an output voltage rectified in a rectifying unit; an LED switch unit including N number of LED switches connected in parallel with at least N number of the M LEDs, respectively, and connected in series; an LED switch control signal generating unit comparing the output voltage of the rectifying unit with each of the first to Nth preset reference voltages to generate N number of LED switch control signals controlling the LED switch unit; and an LED switch controlling unit transferring the N number of LED switch control signals to the LED switch unit.

Abstract translation: 提供了一种用于发光二极管的照明驱动装置，该装置包括：发光单元，包括M个串联连接并由整流单元整流的输出电压驱动的发光二极管（LED）; LED开关单元，其分别包括与至少N个M个LED并联连接的N个LED开关并串联连接; LED开关控制信号发生单元，将整流单元的输出电压与第一至第N预设参考电压中的每一个进行比较，以产生控制LED开关单元的N个LED开关控制信号; 以及将N个LED开关控制信号传送到LED开关单元的LED开关控制单元。

公开(公告)号：US20150115828A1

公开(公告)日：2015-04-30

申请号：US14327479

申请日：2014-07-09

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Sang Hyun Cha ,  Hye Jin Lee ,  Deuk Hee Park ,  Yun Joong Lee

IPC: H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/0884

Abstract: A light emitting diode driving apparatus may include a power supplying unit receiving phase-controlled power and supplying operation power having a preset level, a driving unit receiving the operation power from the power supplying unit to drive a light emitting diode unit receiving the phase-controlled power, and a noise current limiting unit decreasing a noise current due to a parasitic capacitance component of the driving unit.

Abstract translation: 发光二极管驱动装置可以包括：接收相位控制电力并提供具有预设电平的操作电力的供电单元;驱动单元，接收来自供电单元的操作电力，以驱动接收相位控制的发光二极管单元 功率和噪声电流限制单元，由于驱动单元的寄生电容分量而降低噪声电流。

公开(公告)号：US08981658B2

公开(公告)日：2015-03-17

申请号：US13891948

申请日：2013-05-10

Applicant: Samsung Electro-Mechanics Co., Ltd.

Inventor： Yun Joong Lee ,  Je Hyeon Yu ,  Sang Hyun Cha ,  Deuk Hee Park

IPC: H05B33/08

CPC classification number: H05B33/0824

Abstract: There is provided an apparatus for driving a light emitting diode (LED), performing switching-operation with respect to a pair of LED groups by a phase difference of 180 degrees. The apparatus includes a switching unit that alternately switches a first LED unit and a second LED unit of at least one pair of LED units emitting light by receiving rectified power, in accordance with a predetermined phase difference, a current limiting unit that limits a current flowing in the at least one pair of LED units through the switching of the switching unit, and a driving control unit that controls switching driving of the switching unit in accordance with a voltage level of the rectified power.

Abstract translation: 提供了一种用于驱动发光二极管（LED）的装置，相对于一对LED组以180度的相位差执行切换操作。 该装置包括切换单元，其交替地切换至少一对LED单元的第一LED单元和第二LED单元，所述至少一对LED单元通过接收经整流的功率，根据预定的相位差，限制电流流动的限流单元 在至少一对LED单元中通过开关单元的切换，以及驱动控制单元，其根据整流功率的电压控制开关单元的开关驱动。

公开(公告)号：US08975927B2

公开(公告)日：2015-03-10

申请号：US13842163

申请日：2013-03-15

Applicant: Samsung Electro-Mechanics Co., Ltd.

Inventor： Jong Tae Hwang ,  Deuk Hee Park ,  Sang Hyun Cha ,  Chang Seok Lee ,  Yun Joong Lee

IPC: H03B1/00 ,  H03K3/00 ,  H03K17/04

CPC classification number: H03K17/04 ,  H03K17/04123

Abstract: Disclosed herein is a gate driver. The gate driver according to an exemplary embodiment of the present invention includes: a first power switch sourcing current according to voltage applied by a voltage source; a second power switch connected with the first power switch in series and sinking current according to the voltage applied by the voltage source; and a speed booster receiving a voltage pulse from the outside to output peak current so as to make a turn on/off operation of the first power switch fast. As set forth above, according to the exemplary embodiments of the present invention, it is possible to improve the driving speed of the gate driver without increasing the current of the current source by further including the speed booster configured of the plurality of MOSFETs and the capacitor.

Abstract translation: 这里公开的是门驱动器。 根据本发明的示例性实施例的栅极驱动器包括：第一电源开关，根据由电压源施加的电压来提供电流; 与所述第一电源开关串联连接的第二电源开关，并根据所述电压源施加的电压来吸收电流; 以及速度增益器，其从外部接收电压脉冲以输出峰值电流，以使得第一电力开关的接通/断开操作快速。 如上所述，根据本发明的示例性实施例，通过进一步包括由多个MOSFET构成的速度升压器和电容器，可以提高栅极驱动器的驱动速度，而不增加电流源的电流 。

公开(公告)号：US09780771B2

公开(公告)日：2017-10-03

申请号：US14288070

申请日：2014-05-27

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD. ,  University of Seoul Industry Cooperation Foundation

Inventor： Sang Hyun Cha ,  Deuk Hee Park ,  Yun Joong Lee ,  Joong Ho Choi ,  Je Hyeon Yu ,  Hyeon Seon Yu ,  Chang Seok Lee

IPC: H02M3/335 ,  H03K17/06 ,  H03K17/687

CPC classification number: H03K17/063 ,  H02M3/33507 ,  H03K17/687

Abstract: A gate driving circuit may include: a bias unit receiving an input signal having preset high and low signal levels, including a first N-MOSFET turned on in the case in which the input signal has the high level and a first P-MOSFET turned on in the case in which the input signal has the low level, and supplying bias powers by the turning-on of the first N-MOSFET and the first P-MOSFET; and an amplifying unit including a second N-MOSFET turned on by receiving the bias power supplied from the first N-MOSFET in the case in which the input signal has the high level and a second P-MOSFET turned on by receiving the bias power supplied from the first P-MOSFET turned on in the case in which the input signal has the low level and providing a gate signal depending on the turning-on of the second N-MOSFET and the second P-MOSFET.