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公开(公告)号：KR1020160080922A
公开(公告)日：2016-07-08
申请号：KR1020140192915
申请日：2014-12-30
Applicant: 삼성전자주식회사 , 서울대학교산학협력단
CPC classification number: H02M1/4225 , H02M1/44 , H02M2001/123 , Y02B70/126 , H02M1/4233 , G05F1/70
Abstract: 역률보상회로및 이를포함하는전자제품에대한발명으로, 정류다이오드를사용하지않는브리지리스회로를구성하고, 추가적인스위치를사용하여다이오드에의한도통손실을제거하고, 역률보상회로의Common mode EMI 노이즈를감소시키는기술이다. 일실시예에따른역률보상회로는, 교류입력단에직접연결되는적어도하나의인덕터, 인덕터에자기에너지를충전시키기위하여전류를제어하는복수의제 1스위칭소자, 교류입력단의접지전압과출력단의접지전압사이의전압을일정하게유지시키기위한제 2스위칭소자를포함한다.
Abstract translation: 本发明涉及一种功率因数补偿电路及其电子产品。 该技术构成了不使用整流二极管的无桥电路，消除了使用附加开关的二极管引起的导通损耗，并降低了功率因数补偿电路的公共节点EMI噪声。 根据实施例，功率因数补偿电路包括：至少一个电感器，其直接连接到AC输入端子; 多个第一开关元件，其控制电流以对电感器中的磁能进行充电; 以及第二开关部件，其恒定地维持AC输入端子的接地电压与输出端子的接地电压之间的电压差。
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公开(公告)号：KR101500623B1
公开(公告)日：2015-03-11
申请号：KR1020080126780
申请日：2008-12-12
Applicant: 서울대학교산학협력단
Abstract: 표시 장치에서, 변압기의 1차 코일의 제1 단자가 전극에 연결되어 있으며, 변압기의 2차 코일의 제1 단자가 제1 전압을 공급하는 제1 전압 단자에 연결되어 있다. 제1 트랜지스터가 1차 코일의 제2 단자와 제2 전압을 공급하는 제2 전압 단자 사이에 연결되어 있으며, 제2 트랜지스터가 2차 코일의 제2 단자와 제2 전압 단자 사이에 연결되어 있다.
PDP, 변압기, 공진, 인덕터-
公开(公告)号：KR1020140004968A
公开(公告)日：2014-01-14
申请号：KR1020120072500
申请日：2012-07-03
Applicant: 엘에스산전 주식회사 , 서울대학교산학협력단
CPC classification number: H02M1/15 , H01L2924/13091 , H02H7/1213 , H02M3/325 , Y02B70/1491
Abstract: The present invention relates to an apparatus for driving an interleaved full bridge converter, which comprises: a driving switch unit including six driving switches of which one pair is respectively connected in serial to a first leg, a second leg, and a third leg, and generating alternating voltage by switching direct current; a transformer unit, which is divided into two modules, performing voltage transformation with the alternating voltage generated from the driving switch unit according to a winding ratio of a primary winding to a secondary winding; a rectifier and filter unit, which is divided into two modules, outputting an output voltage of the transform unit after rectifying and filtering the output voltage; and a driving control unit outputting switching control signals to the driving switch unit, wherein the driving control unit outputs the switching control signals, based on a waveform of a switching control signal for the second leg, for a waveform of a switching control signal for the first leg to overlap the waveform of the switching control signal for the second leg as much as a first phase angle from the start of the waveform of the switching control signal for the second leg, and for a waveform of a switching control signal for the third leg to overlap the waveform of the switching control signal for the second leg as much as a second phase angle from the end of the waveform of the switching control signal for the second leg.
Abstract translation: 本发明涉及一种用于驱动交错式全桥转换器的装置，该装置包括：驱动开关单元，包括六个驱动开关，其中一对分别串联连接到第一支腿，第二支脚和第三支脚，以及 通过切换直流电产生交流电压; 变压器单元，其被分成两个模块，根据初级绕组与次级绕组的绕组比，根据从驱动开关单元产生的交流电压进行电压变换; 整流器和滤波器单元，其被分成两个模块，在整流和滤波输出电压之后输出变换单元的输出电压; 以及向所述驱动开关单元输出切换控制信号的驱动控制单元，其中，所述驱动控制单元基于所述第二支路的切换控制信号的波形，输出所述切换控制信号的开关控制信号的波形 第一支路，与第二支路的开关控制信号的波形开始时的第二支路的开关控制信号的波形重叠多达第一相位角，以及第三支路的开关控制信号的波形 从第二支路的开关控制信号的波形结束起与第二支路的开关控制信号的波形重叠多达第二相位角。
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