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公开(公告)号：KR101245520B1
公开(公告)日：2013-03-21
申请号：KR1020110074506
申请日：2011-07-27
Applicant: 한국전기연구원
IPC: H02M3/28
Abstract: 본 발명은 직류응용분야에서 전력의 흐름이 양방향으로 전달 가능하면서, 정방향과 역방향 모두 동일한 구성을 가져서 설계가 단순화되고, 방향에 관계없이 소프트 스위칭이 가능하여 손실이 작고 고효율로 전력변환장치를 동작시킬 수 있으며, 양방향에서의 전력회로 동작이 같으므로 정방향, 역방향에 대해 동일하게 제어 동작도 가능하게 할 수 있는 대칭형 양방향 공진형 컨버터에 관한 것이다.
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Patent Agency Ranking
公开(公告)号：KR101297080B1
公开(公告)日：2013-08-19
申请号：KR1020120033283
申请日：2012-03-30
Applicant: 한국전기연구원
IPC: H02M7/17
Abstract: PURPOSE: A series compensation half bridge multi-module converter is provided to prevent short-circuit current in accidents by controlling current flowing in a smoothing series inductor through a secondary side circuit. CONSTITUTION: A half bridge multi-module converter (100) includes a series compensation inductor (110) with a transformer structure, a multi-module converter (MMC) (130), and a grid related compensation system (120). The MMC includes multiple half bridge type conversion modules. The series compensation inductor has a first inductor and a second inductor connected in series between the half bridge type conversion modules connected to a positive terminal and a negative terminal of an output side of the MMC in series. A system AC input is received through a contact point of a primary side coil of the first inductor and a primary side coil of the second inductor. The grid related compensation system is connected between secondary side coils of the first inductor and the second inductor and a terminal of the system AC input. [Reference numerals] (AA) Load
Abstract translation: 目的：通过控制通过次级侧电路在平滑串联电感器中流动的电流，提供串联补偿半桥多模块转换器，以防止事故中的短路电流。 构成：半桥多模块转换器（100）包括具有变压器结构的串联补偿电感（110），多模块转换器（MMC）（130）和电网相关补偿系统（120）。 MMC包括多个半桥式转换模块。 串联补偿电感器具有串联连接在串联的MMC的正极端子和负极端子的半桥式转换模块之间的第一电感器和第二电感器。 通过第一电感器的初级侧线圈和第二电感器的初级侧线圈的接触点接收系统AC输入。 电网相关补偿系统连接在第一电感器和第二电感器的次级侧线圈和系统AC输入端子之间。 （附图标记）（AA）负载
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公开(公告)号：KR101264175B1
公开(公告)日：2013-05-14
申请号：KR1020110040986
申请日：2011-04-29
Applicant: 한국전기연구원
Abstract: 본발명은위상제어조광기로서, 입력전압의각기다른위상에서각각구동되는 2개의스위칭트랜지스터; 상기 2개의스위칭트랜지스터의문턱전압(Threshold Voltage)을제공하는구동커패시터; 상기구동커패시터에충전되는전류의흐름을제어하는다이오드; 및상기입력전압과대비하여상기 2개의스위칭트랜지스터의출력전압의위상을조절하는가변저항을포함하는것을특징으로하는위상제어조광기이며, 이와같은본 발명에의하면 LED 등의램프의구동을안정적으로조절할수 있는데, 특히래칭전류(latching current)로인해램프가갑자기밝아지는현상을제거할수 있고또한리플전압을포함하는입력전압에의해홀딩전류(holding current)를유지하지못함으로인한램프가깜빡이는현상을제거할수 있게된다.
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公开(公告)号：KR1020130013092A
公开(公告)日：2013-02-06
申请号：KR1020110074506
申请日：2011-07-27
Applicant: 한국전기연구원
IPC: H02M3/28
Abstract: PURPOSE: A symmetric and bidirectional resonant converter is provided to obtain a CLLC resonance structure from any directions by having a symmetric and identical circuit structure in both directions regardless of the flow of current in high or low pressure. CONSTITUTION: A first resonance circuit, a transformer(TF), and a second resonance circuit are combined between a first bridge circuit and a second bridge circuit. A first resonance circuit is connected to both output ends of a first bridge circuit. A first resonance circuit includes a first inductor(L1) and a first capacitor(C1). A second resonance circuit is connected between the both input ends of a second bridge circuit. A second resonance circuit includes a second inductor(L2) and a second capacitor(C2). A voltage direction is changed into a constant cycle through a first bridge circuit and is inputted into a first resonance circuit. A rectified resonance voltage is generated through a second bridge circuit. A rectified restoration voltage is generated through a first bridge circuit.
Abstract translation: 目的：提供对称和双向谐振转换器，以通过在两个方向上具有对称和相同的电路结构从而从任何方向获得CLLC谐振结构，而不管高压或低压下的电流如何。 构成：在第一桥式电路和第二桥式电路之间组合有第一谐振电路，变压器（TF）和第二谐振电路。 第一谐振电路连接到第一桥式电路的两个输出端。 第一谐振电路包括第一电感器（L1）和第一电容器（C1）。 第二谐振电路连接在第二桥接电路的两个输入端之间。 第二谐振电路包括第二电感器（L2）和第二电容器（C2）。 电压方向通过第一桥式电路变为恒定周期，并被输入到第一谐振电路。 通过第二桥式电路产生整流的谐振电压。 通过第一桥式电路产生整流的恢复电压。
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公开(公告)号：KR1020120122683A
公开(公告)日：2012-11-07
申请号：KR1020110040986
申请日：2011-04-29
Applicant: 한국전기연구원
CPC classification number: H05B33/0815 , H03K17/30 , H05B33/0803 , Y02B20/42
Abstract: PURPOSE: A phase control dimmer is provided to control a phase by driving two switching transistors according to a voltage charged to a driving capacitor. CONSTITUTION: Switching transistors(M1,M2) are driven in respectively different phases of an input voltage. Driving capacitors(C1,C2) supply a threshold voltage of the switching transistor. A diode controls the flow of a current charged to a driving capacitor. A variable resistance(R1) controls a phase of an output voltage of a switching transistor. The driving transistor is connected between a gate electrode and a source electrode.
Abstract translation: 目的：提供相位控制调光器，通过根据充电到驱动电容器的电压驱动两个开关晶体管来控制相位。 构成：开关晶体管（M1，M2）分别驱动输入电压的不同相位。 驱动电容器（C1，C2）提供开关晶体管的阈值电压。 二极管控制充电到驱动电容器的电流的流动。 可变电阻（R1）控制开关晶体管的输出电压的相位。 驱动晶体管连接在栅电极和源电极之间。
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公开(公告)号：KR101296796B1
公开(公告)日：2013-08-14
申请号：KR1020120040083
申请日：2012-04-18
Applicant: 한국전기연구원
IPC: H02M3/28
Abstract: PURPOSE: A resonant DC-DC converter in an output Y connection structure is provided to reduce a pulsation rate and easily design an output side filter by performing synchronization to operate each phase having a constant phase difference through Y connection combination. CONSTITUTION: A DC converter includes multiple resonant DC-DC converters (110) as an independent module; a rectifier (130) to which multiple circuits are connected in parallel having two diodes connected in series; and a transformer (120) having multiple primary coils connected to an output terminal of the DC-DC converters and multiple secondary coils corresponding to the primary coils. Each one terminal of the secondary coils has Y-connection by being connected to a common contact point, and each other terminal of the secondary coils is connected to each neutral contact point of the two diodes connected in series. [Reference numerals] (AA,BB,EE) Resonant DC-DC converter; (CC) Filter; (DD) Load
Abstract translation: 目的：提供输出Y连接结构中的谐振DC-DC转换器，以通过执行同步来通过Y连接组合操作具有恒定相位差的每个相位来降低脉动率并容易地设计输出侧滤波器。 构成：DC转换器包括作为独立模块的多个谐振DC-DC转换器（110）; 整流器（130），多个电路并联连接，具有串联连接的两个二极管; 以及具有连接到DC-DC转换器的输出端子的多个初级线圈和对应于初级线圈的多个次级线圈的变压器（120）。 次级线圈的每个端子通过连接到公共接触点而具有Y形连接，并且次级线圈的每个端子连接到串联连接的两个二极管的每个中性点。 （参考号）（AA，BB，EE）共振DC-DC转换器; （CC）过滤器; （DD）负载
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