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    • 1. 发明公开
    • 스위칭 장치 및 그 구동 방법
    • 切换装置及其驱动方法
    • KR1020160018145A
    • 2016-02-17
    • KR1020140102304
    • 2014-08-08
    • 주식회사 실리콘웍스
    • 김해봉구만원권옥환홍주표김성환이주현목진원김주영
    • G05F1/46
    • H02M3/156H02M2003/1555H05B33/0815
    • 스위칭장치및 그구동방법이제공된다. 스위칭장치는, 인덕티브소자(inductive element)에흐르는전류를제어하는스위치, 상기스위치와연결된모니터링노드(monitoring node) 및상기모니터링노드와레퍼런스전압과연결되고, 상기스위치를턴온/턴오프하는신호제어회로를포함하되, 상기신호제어회로는, 상기모니터링노드의모니터링전압과상기레퍼런스전압을이용하여비교전압을생성하는적분기와, 상기비교전압과상기레퍼런스전압을비교하여리셋신호를생성하는비교기와, 상기적분기에의한제1 오프셋전압과상기비교기에의한제2 오프셋전압이상기비교전압에영향을주지않도록하는오프셋소거부를포함한다.
    • 提供一种开关装置及其驱动方法。 开关装置包括开关,其控制沿着电感元件流动的电流,连接到开关的监视节点,以及连接到监视节点的信号控制电路和参考电压并且接通/断开开关。 信号控制电路包括通过使用监视节点的参考电压和监视电压产生比较电压的积分器,比较电压和参考电压并产生复位信号的比较器,以及防止 积分器的第一偏移电压和比较器的第二偏移电压影响比较电压。
    • 3. 发明公开
    • 신호 제어 회로 및 스위칭 장치
    • 信号控制电路和开关装置
    • KR1020150134106A
    • 2015-12-01
    • KR1020140061009
    • 2014-05-21
    • 주식회사 실리콘웍스
    • 권옥환임백민김해봉홍주표김성환이주현목진원김주영
    • G05F1/10
    • H02M3/156G05F1/44H02M3/33507
    • 신호제어회로및 스위칭장치가제공된다. 스위칭장치는, 인덕티브소자(inductive element)에흐르는전류를제어하는스위치, 상기스위치와연결된모니터링노드(monitoring node) 및상기모니터링노드와레퍼런스전압과연결되고, 상기스위치를턴온/턴오프하는신호제어회로를포함하되, 상기신호제어회로는, 상기모니터링노드의모니터링전압과상기레퍼런스전압을이용하여비교전압을생성하는적분기를포함하고, 상기적분기는, 저항부와커패시터부를포함하고, 파워업구간에서적어도하나의선택신호를제공받아상기저항부의크기와상기커패시터부의크기중 적어도하나를결정하여, 상기비교전압의피크값이타겟범위내에위치하도록하는오토캘리브레이터(auto calibrator)를포함한다.
    • 提供信号控制电路和开关装置。 开关装置包括:开关,其控制在电感元件中流动的电流; 连接到交换机的监控节点; 以及信号控制电路,其连接到所述监视节点和参考电压,并且接通或断开所述开关,其中所述信号控制电路包括积分器,所述积分器通过使用所述监视节点和所述参考电压的监视电压来产生比较电压 电压。 积分器包括自动校准器,其包括电阻器部分和电容器部分,在加电部分中接收至少一个选择信号,以及确定电阻器部分的大小和电容器部分的大小中的至少一个,使得 比较电压的峰值落在目标范围内。
    • 5. 发明公开
    • 시스템 컨트롤부, 상기 시스템 컨트롤부를 포함하는 엘이디 드라이버 및 상기 엘이디 드라이버의 정전류 제어방법
    • 系统控制单元,包括单元的LED驱动器和驱动器的静态电流调节方法
    • KR1020130031720A
    • 2013-03-29
    • KR1020110095450
    • 2011-09-21
    • 주식회사 실리콘웍스
    • 권옥환구만원홍주표신창식김경민정병호김용구손영석
    • H05B37/02
    • H05B33/083H05B33/0815Y02B20/347Y02B20/42
    • PURPOSE: A system controller, an LED driver comprising the system controller, and a controlling method of a constant current of the LED driver are provided to use a peak value of the current flowing in a power transistor which is connected to a first side coil, thereby control a constant current which is supplied to a diode array which is connected to a second side coil. CONSTITUTION: A power source converting unit(310) rectifies the supply voltage of the interchange type, and produces the input voltage. A switching unit(330) comprises a power transistor which operates in a response to a gate control signal, and a switching resistance which is installed between the power transistor and the ground voltage. A transformer(320) delivers the supply voltage of the input voltage or the direct current type to the second side in a constant rate, by responding to a switching operation of the switching unit connected to the first side coil. A system controller(340) sets the step output current corresponding to the current flowing in a diode array by using the peak value of a plurality of current detected continuously, and renews the gate control signal by using the predetermined step output current. [Reference numerals] (AA) Primary side; (BB) Secondary side
    • 目的:提供一种系统控制器,包括系统控制器的LED驱动器和LED驱动器的恒定电流的控制方法,以使用流过连接到第一侧线圈的功率晶体管中的电流的峰值, 从而控制提供给连接到第二侧线圈的二极管阵列的恒定电流。 构成:电源转换单元(310)对交换类型的电源电压进行整流,并产生输入电压。 开关单元(330)包括响应于门控制信号而工作的功率晶体管和安装在功率晶体管和接地电压之间的开关电阻。 变压器(320)通过响应连接到第一侧线圈的开关单元的开关操作,以恒定速率将输入电压或直流型的电源电压传送到第二侧。 系统控制器(340)通过使用连续检测的多个电流的峰值来设定与二极管阵列中流动的电流相对应的阶跃输出电流,并且通过使用预定的步进输出电流来更新门控制信号。 (附图标记)(AA)初级侧; (BB)二次侧
    • 7. 发明公开
    • 시스템 컨트롤부, 상기 시스템 컨트롤부를 포함하는 엘이디 드라이버 및 상기 엘이디 드라이버의 정전류 제어방법
    • 系统控制单元,包括单元的LED驱动器和驱动器的静态电流调节方法
    • KR1020130031719A
    • 2013-03-29
    • KR1020110095449
    • 2011-09-21
    • 주식회사 실리콘웍스
    • 구만원홍주표권옥환신창식김경민정병호김용구손영석
    • H05B37/02
    • Y02B20/42H05B33/083H05B33/0815Y02B20/347
    • PURPOSE: A system control unit, an LED driver including the system control unit, and a constant current controlling method of the LED driver are provided to effectively control a secondary constant current even if an input current is an interchange type, thereby improve the power factor. CONSTITUTION: A diode current peak value predictor(341) detects a first peak value which is the biggest among the current flowing in a power transistor, and predicts a second peak value by using the first peak value. A diode turn-off point detector(342) detects a point of time when the diode connected to a secondary side coil is turned off. A power transistor turn-off point detector(343) detects a point of time when the power transistor is turned off by using a gate controlling signal. An average value calculation(344) produces an average value by averaging the output current of a pulse shape corresponding to the current supplied to an LED diode array for a constant time section. A pulse controller(345) renews the gate control signal by using the average value. [Reference numerals] (AA) Primary side; (BB) Secondary side
    • 目的:提供系统控制单元,包括系统控制单元的LED驱动器和LED驱动器的恒流控制方法,以便即使输入电流是交换类型,也能有效地控制次级恒定电流,从而提高功率因数 。 构成:二极管电流峰值预测器(341)检测在功率晶体管中流动的电流中最大的第一峰值,并且通过使用第一峰值来预测第二峰值。 二极管关断点检测器(342)检测连接到次级侧线圈的二极管被断开的时间点。 功率晶体管截止点检测器(343)通过使用栅极控制信号来检测功率晶体管截止的时间点。 平均值计算(344)通过对与提供给LED二极管阵列的电流相对应的脉冲形状的输出电流进行平均来产生平均值,用于恒定时间段。 脉冲控制器(345)使用平均值更新门控信号。 (附图标记)(AA)初级侧; (BB)二次侧