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公开(公告)号：KR1020120072808A
公开(公告)日：2012-07-04
申请号：KR1020100134705
申请日：2010-12-24
CPC classification number: H02M3/3378 , H02M2001/0032 , H02M2001/008 , Y02B70/16
Abstract: PURPOSE: A power supply device which supplies standby power by sharing switching elements of a main converter with a standby converter is provided to improve operating efficiency through zero volt switching. CONSTITUTION: A power supply device comprises a phase transition full bridge converter as a main converter for supplying main power and a two-switch flyback converter as a standby converter for supplying standby power. A transformer is used for both the main and standby converters. Four switching elements in a primary circuit of the main converter form a bridge structure. Two switching elements and two diodes in a primary circuit of the standby converter form a bridge structure.
Abstract translation: 目的：提供通过与备用转换器共享主转换器的开关元件来提供备用电源的电源装置，以通过零伏开关提高工作效率。 构成：电源装置包括作为用于提供主电源的主转换器的相变全桥转换器和用于提供备用电力的备用转换器的双开关反激转换器。 变压器用于主转换器和备用转换器。 主转换器的主电路中的四个开关元件形成桥结构。 备用转换器的主电路中的两个开关元件和两个二极管形成桥结构。
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公开(公告)号：KR1020130010675A
公开(公告)日：2013-01-29
申请号：KR1020110071451
申请日：2011-07-19
IPC: H02M3/28
Abstract: PURPOSE: A power supply device is provided to reduce the size of a circuit by filtering the output of multiple full bridge converter circuits through one inductor. CONSTITUTION: A switch(110) comprises multiple switching blocks. The multiple switching switches blocks input power source. A transformer(120) comprises multiple transformers. The multiple transformers transform the voltage level of the switched power source. An output unit(130) comprises a single inductor.
Abstract translation: 目的：提供一个电源装置，通过一个电感对多个全桥转换器电路的输出进行滤波来减小电路的尺寸。 构成：开关（110）包括多个切换块。 多个开关开关阻止输入电源。 变压器（120）包括多个变压器。 多个变压器转换开关电源的电压电平。 输出单元（130）包括单个电感器。
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公开(公告)号：KR1020130083537A
公开(公告)日：2013-07-23
申请号：KR1020120004171
申请日：2012-01-13
IPC: H02M3/28
Abstract: PURPOSE: A power supply apparatus is provided to control an output of gain easily, by controlling switching if the load state is below a pre-established ratio. CONSTITUTION: A switching part switches an input power source. A transformer part (140) transforms a voltage level of the switched power source. A stabilization part (150) outputs an output power supply voltage. A control part (160) fixes the switching frequency to a maximum switching frequency which is set in advance. The control part varies switching duty. [Reference numerals] (161) PI controller; (163) Switching controller
Abstract translation: 目的：提供一种电源装置，通过控制负载状态低于预先确定的比例来控制切换，容易地控制增益的输出。 构成：开关部分切换输入电源。 变压器部分（140）转换开关电源的电压电平。 稳定部（150）输出输出电源电压。 控制部分（160）将开关频率固定为预先设定的最大开关频率。 控制部分改变开关占空比。 （161）PI控制器; （163）开关控制器
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公开(公告)号：KR1020130083536A
公开(公告)日：2013-07-23
申请号：KR1020120004170
申请日：2012-01-13
IPC: H02M3/28
Abstract: PURPOSE: An active clamp forward converter is provided to reduce an offset current, by implementing asymmetric winding ratio between divided windings of a secondary winding of a transformer. CONSTITUTION: A clamp switching part (110) clamps an input power source. A transformer part (120) has a primary winding and a secondary winding. The primary winding receives a switched power source. The secondary winding part transforms the voltage level of the switched power source. A rectifier part (130) rectifies the transformed power source and then outputs the rectified power source. [Reference numerals] (AA) Load
Abstract translation: 目的：通过在变压器次级绕组的分频绕组之间实现不对称绕组比，提供了一种有源钳位正激转换器来减少偏移电流。 构成：钳位开关部分（110）夹持输入电源。 变压器部件（120）具有初级绕组和次级绕组。 初级绕组接收开关电源。 次级绕组部分转换开关电源的电压电平。 整流器部分（130）对变换后的电源进行整流，然后输出整流电源。 （附图标记）（AA）负载
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公开(公告)号：KR1020130083538A
公开(公告)日：2013-07-23
申请号：KR1020120004172
申请日：2012-01-13
CPC classification number: Y02B70/126 , H02M3/335 , H02M2001/0032 , Y02B70/16
Abstract: PURPOSE: A power supply apparatus and a power supply circuit are provided to increase efficiency of switching operation, by outputting a power signal always regardless of on/off of a switching device. CONSTITUTION: An input circuit (110) includes a primary winding and a switch. A first output circuit (120) includes a secondary winding. The first output circuit constitutes the input circuit and a flyback converter circuit. A second output circuit (130) includes a tertiary winding. The second output circuit constitutes the input circuit and a forward converter circuit.
Abstract translation: 目的：提供一种供电装置和电源电路，通过不管开关装置的接通/断开而始终输出电力信号，以提高开关操作的效率。 构成：输入电路（110）包括初级绕组和开关。 第一输出电路（120）包括次级绕组。 第一输出电路构成输入电路和反激转换电路。 第二输出电路（130）包括第三绕组。 第二输出电路构成输入电路和正激变换器电路。
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Patent Agency Ranking
公开(公告)号：KR101228796B1
公开(公告)日：2013-01-31
申请号：KR1020100134705
申请日：2010-12-24
CPC classification number: H02M3/3378 , H02M2001/0032 , H02M2001/008 , Y02B70/16
Abstract: 메인 컨버터의 스위칭 소자들 공유하여 스탠바이 전원을 공급하는 전원공급장치가 개시된다. 전원공급장치는 메인 트랜스포머의 1차측 권선과 전원 입력단에 연결되어 메인 트랜스포머의 1차측 권선으로 흐르는 전류를 제어하기 위한 복수의 스위칭 소자들을 포함하는 1차측 회로와 메인 트랜스포머의 1차측 권선에 자기적으로 결합된 2차측 권선을 통해 메인 전원을 공급하는 2차측 회로를 포함하는 메인 컨버터와, 스탠바이 트랜스포머의 1차측 권선과 전원 입력단에 연결되어 트랜스포머의 1차측 권선으로 흐르는 전류를 제어하기 위한 복수의 스위칭 소자들을 포함하는 1차측 회로와, 스탠바이 트랜스포머의 1차측 권선에 자기적으로 결합된 2차측 권선을 통해 스탠바이 전원을 공급하는 2차측 회로를 포함하는 스탠바이 컨버터를 포함하며, 메인 컨버터의 복수의 스위칭 소자들 중 일부는 스탠바이 컨버터의 스위칭 소자들에 포함시킬 수 있다. 이를 통해 영전압 스위칭을 통해 전원공급장치의 효율을 개선할 수 있다.
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公开(公告)号：KR101422147B1
公开(公告)日：2014-08-14
申请号：KR1020070087809
申请日：2007-08-30
Applicant: 삼성디스플레이 주식회사 , 한국과학기술원
IPC: G02F1/133
CPC classification number: G09G3/3426 , G09G3/32 , G09G2320/0646 , G09G2330/021 , G09G2360/16
Abstract: 본 발명은 액정표시장치의 백라이트 유닛, 이를 포함하는 액정표시장치 및 이에 채용되는 로컬 디밍 방법에 관한 것이다. 본 발명의 백라이트 유닛은, 매트릭스 형태로 구획되어진 다수의 블록들을 포함하며, 상기 블록들은 각각 다수의 화소로 구획되어진 표시 패널의 하나 또는 둘 이상의 화소에 대응하여 대응 화소에 빛을 공급하는 LED 모듈을 포함하는 로컬 디밍(local dimming) 방식을 채용하는 것으로서, 상기 LED 모듈은 상기 LED 모듈이 속한 행 전체에 동일하게 인가되는 행 구동 신호 및 상기 LED 모듈이 속한 열 전체에 동일하게 인가되는 열 구동 신호에 의해 구동되어 휘도를 조절하는 것을 특징으로 한다.
본 발명에 따르면, 로컬 디밍 방식을 적용하여 영상의 선명도를 향상시키고 전력 손실을 감소시킬 수 있으며, 이와 함께 백라이트 유닛의 구동을 위한 구동 회로의 개수를 획기적으로 감소시킬 수 있다.Abstract translation: 液晶显示器的背光单元，包括该液晶显示器的液晶显示器以及其中使用的局部调光方法技术领域本发明涉及液晶显示器的背光单元，包括该背光单元的液晶显示器以及其中使用的局部调光方法。 本发明的背光单元，包括：多个块的一个矩阵被划分，对应于显示面板的一个或多个像素的块被划分成多个像素，用于向对应的像素提供光的每个LED模块的 LED模块可以包括施加到LED模块所属的整个行的行驱动信号和施加到LED模块所属的所有列的列驱动信号， 以便调整亮度。
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公开(公告)号：KR1020090022452A
公开(公告)日：2009-03-04
申请号：KR1020070087809
申请日：2007-08-30
Applicant: 삼성디스플레이 주식회사 , 한국과학기술원
IPC: G02F1/133
CPC classification number: G09G3/3426 , G09G3/32 , G09G2320/0646 , G09G2330/021 , G09G2360/16
Abstract: A backlight unit of a liquid crystal display, the liquid crystal display comprising the same, and a local dimming method used in the same are provided to improve sharpness of an image, reduce power loss and reduce the number of circuits largely for driving a backlight unit by applying a local dimming method, thereby reducing manufacturing costs of the liquid crystal display. An LED(Light Emitting Diode) module are driven by a row driving signal equally applied to the entire rows to which the LED module belongs and a column driving signal equally applied to the entire columns to which the LED module belongs, thereby controlling brightness. The column driving signal and row driving signal are current signals. The LED module comprises the first and second LED modules. The first LED module is driven by a current delivered with the column driving signal. The second LED module is driven with the current delivered with the row driving signal.
Abstract translation: 提供液晶显示器的背光单元，包括该液晶显示器的液晶显示器及其中使用的局部调光方法，以提高图像的清晰度，减少功率损耗并减少用于驱动背光单元的电路数量 通过应用局部调光方法，从而降低了液晶显示器的制造成本。 LED（发光二极管）模块由等同地施加到LED模块所属的整行的行驱动信号和等同地施加到LED模块所属的整列的列驱动信号驱动，从而控制亮度。 列驱动信号和行驱动信号是电流信号。 LED模块包括第一和第二LED模块。 第一个LED模块由带有列驱动信号的电流驱动。 第二个LED模块由带有行驱动信号的电流驱动。
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公开(公告)号：KR1020100103967A
公开(公告)日：2010-09-29
申请号：KR1020090022062
申请日：2009-03-16
Applicant: 삼성전기주식회사
CPC classification number: Y02B70/126 , Y02P80/112
Abstract: PURPOSE: According to the power supply unit is the load, the voltage of the link capacitor is low made in light-1oad by controlling the voltage of the link capacitor. CONSTITUTION: It is connected to the input power source and the PFC(Power Factor Correction) part(11) satisfies the harmonics control. The PFC controller(12) runs the PFC part. The DC/DC part(13) is connected to the PFC part. The link voltage varying circuit part(14) gets the load information by detecting the output current of the link capacitor located between the DC / DC part and PFC part.
Abstract translation: 目的：根据电源单元的负载，通过控制链路电容器的电压，连接电容器的电压低于光。 构成：连接到输入电源，PFC（功率因数校正）部分（11）满足谐波控制。 PFC控制器（12）运行PFC部件。 DC / DC部分（13）连接到PFC部分。 链路电压变化电路部分（14）通过检测位于DC / DC部分和PFC部分之间的链路电容器的输出电流来获得负载信息。
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公开(公告)号：KR1020100019029A
公开(公告)日：2010-02-18
申请号：KR1020080077848
申请日：2008-08-08
Applicant: 삼성전기주식회사
CPC classification number: H02M3/337 , H01F27/38 , H02M2007/4811 , Y02B70/1433
Abstract: PURPOSE: A transformer with resonant inductance is provided to reduce manufacturing costs and the size of a system by generating the resonant inductance without an additional inductor core. CONSTITUTION: A core(10) has first to third legs(11-13). The second leg is electromagnetically combined with the first leg. The third leg is formed between the first leg and the second leg and is electromagnetically combined with the first and second legs. A primary winding(14) is wound around one side of the third leg. A secondary winding(15) is wound around the other side of the third leg. A resonant inductance winding(16) is wound along the outer of the core not to be magnetically induced by the magnetic flux from the primary winding and the secondary winding.
Abstract translation: 目的：提供具有谐振电感的变压器，通过在没有额外的电感器芯的情况下产生谐振电感来降低制造成本和系统尺寸。 构成：核心（10）具有第一至第三支腿（11-13）。 第二条腿与第一条腿电磁结合。 第三腿形成在第一腿部和第二腿部之间，并且与第一腿部和第二腿部电磁组合。 初级绕组（14）缠绕在第三条腿的一侧。 次级绕组（15）缠绕在第三条腿的另一侧。 谐振电感绕组（16）沿着芯的外部缠绕，不被来自初级绕组和次级绕组的磁通量磁感应。
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