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    • 103. 发明公开
    • 쌍방향 DC/DC 컨버터
    • 双向DC / DC转换器
    • KR1020140047523A
    • 2014-04-22
    • KR1020130100466
    • 2013-08-23
    • 후지 덴키 가부시키가이샤
    • 마츠바라구니오니시카와유키히로
    • H02M3/28H02M3/22H02M3/24H02M3/00
    • H02M3/33584H02M3/3376H02M2001/0058H02M2007/4815Y02B70/1433Y02B70/1441Y02B70/1491
    • The present invention comprises; bridge circuits (18, 19) connected to direct current voltage sources (1, 2); an insulating transformer (17) for insulating an alternating current side; an LC resonant circuit between the insulating transformer (17) and the alternating current side of the bridge circuits (18, 19); detection circuits (20, 21) for detecting voltage and current of the direct current voltage sources (1, 2); and control circuits (22, 23) for controlling semiconductor switch elements (5~12). The control circuits (22, 23) have control units for controlling a fixed frequency around an LC resonant frequency fr, and control units (22b, 23b) for modulating and controlling a frequency with a low frequency than the fr. The control circuit (22) converts a fixed frequency control and a frequency modulation control based on a control amount (22c) in a power flow of the direct current voltage source 1→2. The control circuit (23) converts the frequency control and the frequency modulation control based on a control amount (23c) in the direct current voltage source 2→1. Therefore, input and output voltage ranges are applicable to a wide use. [Reference numerals] (1,2) Direct current voltage source; (13,14,) Reactor for resonance; (15,16) Condenser for resonance; (17) Insulating transformer; (3,4,) Smoothing condenser; (5~12) Semiconductor switch device; (AA) First bridge circuit; (BB) Second bridge circuit
    • 本发明包括: 连接到直流电压源(1,2)的桥接电路(18,19); 绝缘变压器(17),用于绝缘交流侧; 绝缘变压器(17)和桥接电路(18,19)的交流侧之间的LC谐振电路; 用于检测直流电压源(1,2)的电压和电流的检测电路(20,21); 以及用于控制半导体开关元件(5〜12)的控制电路(22,23)。 控制电路(22,23)具有用于控制围绕LC谐振频率fr的固定频率的控制单元和用于调制和控制频率低于fr的频率的控制单元(22b,23b)。 控制电路22根据直流电压源1→2的功率流中的控制量(22c)来转换固定频率控制和频率调制控制。 控制电路(23)基于直流电压源2→1中的控制量(23c)来变换频率控制和频率调制控制。 因此,输入和输出电压范围适用于广泛的应用。 (附图标记)(1,2)直流电压源; (13,14)共振反应器 (15,16)谐振电容器 (17)绝缘变压器; (3,4)平滑冷凝器; (5〜12)半导体开关器件; (AA)第一桥电路; (BB)二桥电路
    • 104. 发明授权
    • 높은 승압 비를 갖는 고효율 DC/DC 컨버터
    • 具有高转换比率的高效DC / DC电源转换器
    • KR101315143B1
    • 2013-10-14
    • KR1020120091754
    • 2012-08-22
    • 전북대학교산학협력단
    • 강용철석줄기알리간돔카르
    • H02M3/07H02M3/155
    • H02M3/07H02M2001/0058Y02B70/1491
    • PURPOSE: A DC/DC converter with high efficiency is provided to reduce a switching loss by operating a switch in a zero current state. CONSTITUTION: The anode side of an output diode is connected to one side of a first capacitive device. A 2-1 switch (SAA) selectively switches an electrical connection between the other side of the first capacitive device and one side of a second capacitive device. The cathode side of the output diode is connected to one side of an output device. A first inductive device (L1) is connected between one side of a power switch and the anode side of a second diode. A second inductive device (L2) is connected between one side of the first capacitive device and the anode side of the output diode.
    • 目的:提供高效率的DC / DC转换器,通过在零电流状态下操作开关来减少开关损耗。 构成:输出二极管的阳极侧连接到第一电容器件的一侧。 2-1开关(SAA)选择性地切换第一电容性器件的另一侧和第二电容器件的一侧之间的电连接。 输出二极管的阴极侧连接到输出设备的一侧。 第一感应装置(L1)连接在电源开关的一侧和第二二极管的阳极侧之间。 第二电感器件(L2)连接在第一电容器件的一侧和输出二极管的阳极侧之间。
    • 107. 发明公开
    • 전원 장치
    • 电源设备
    • KR1020130029014A
    • 2013-03-21
    • KR1020120098542
    • 2012-09-06
    • 후지쯔 가부시끼가이샤
    • 나카오히로시
    • H02M3/155
    • H02M1/4225H02M2001/0058H02M2001/342Y02B70/126Y02B70/1491Y02P80/112
    • PURPOSE: A power supply unit is provided to reduce power loss by making source-drain voltage drop 0 V before a switching device is turned on in a PFC(Power Factor Correction) circuit. CONSTITUTION: A second switching device(32) and a trans(34) are parallelly connected with a first switching device. A second rectification device(35) is connected among the second switching device, a connection unit and a positive terminal(3A) of the trans. The second rectification device has a rectification direction headed from the connection unit to the positive terminal. A third rectification device(36) is connected between the trans and the positive terminal. The third rectification device has a rectification direction headed from the trans to the positive terminal. [Reference numerals] (50) Control unit; (60) DC-DC converter; (70) Load circuit
    • 目的:提供一个电源单元,通过在PFC(功率因数校正)电路中接通开关器件之前,将源极 - 漏极电压降低0V降低功率损耗。 构成:第二开关装置(32)和反相(34)与第一开关装置并联连接。 第二整流装置(35)连接在第二开关装置,反相装置的连接单元和正极端子(3A)之间。 第二整流装置具有从连接单元朝向正端子的整流方向。 第三整流装置(36)连接在反向端子和正极端子之间。 第三整流装置具有从反向到正极的整流方向。 (附图标记)(50)控制单元; (60)DC-DC转换器; (70)负载电路
    • 108. 发明公开
    • 직렬 공진 컨버터에 대한 하이브리드 제어 기술
    • 用于系列谐振转换器的混合控制技术
    • KR1020120132355A
    • 2012-12-05
    • KR1020120053062
    • 2012-05-18
    • 페어차일드 세미컨덕터 코포레이션
    • 최항석
    • H02M3/28
    • H02M3/3387H02M2001/0032H02M2001/0058Y02B70/1433Y02B70/1491Y02B70/16
    • PURPOSE: A hybrid control technique for series resonance converter for controlling optimized operation is provided to generate first and second gate control signals to open and close first and second switches, thereby controlling optimized operation under either a normal condition or a light load condition. CONSTITUTION: An inverter circuit generates an AC(Alternating Current) signal from a DC(Direct Current) input signal. A transformer circuit converts an AC signal to a sine wave AC signal. The second stage circuit rectifies the sine wave AC signal and sends it as a DC output signal. A hybrid control circuit modulates the first and the second gate control signals. The modulation includes PFM(Pulse Frequency Modulation) and PWM(Pulse Width Modulation) operations. [Reference numerals] (710) Inverting a DC signal into an AC signal by generating first and second control signals in order to open and close first and second switches; (720) Converting the AC signal into a sinusoidal wave AC signal; (730) Rectifying the sinusoidal wave AC signal into a DC output signal; (740) Modulating the first and second control signals with PFM and PWM
    • 目的:提供用于控制优化操作的串联谐振转换器的混合控制技术,以产生第一和第二门控制信号,以打开和关闭第一和第二开关,从而控制在正常状态或轻负载条件下的优化操作。 构成:逆变器电路从直流(直流)输入信号产生交流(交流)信号。 变压器电路将AC信号转换成正弦波AC信号。 第二级电路对正弦波交流信号进行整流,并将其作为直流输出信号发送。 混合控制电路调制第一和第二门控制信号。 调制包括PFM(Pulse Frequency Modulation,脉冲调制)和PWM(Pulse Width Modulation)。 (附图标记)(710)通过产生第一和第二控制信号将DC信号反相为AC信号,以便打开和关闭第一和第二开关; (720)将AC信号转换为正弦波AC信号; (730)将正弦波交流信号整流为直流输出信号; (740)用PFM和PWM调制第一和第二控制信号
    • 109. 发明授权
    • 스위칭 전원 장치
    • 切换电源设备
    • KR101203918B1
    • 2012-11-23
    • KR1020107023942
    • 2009-10-27
    • 산켄덴키 가부시키가이샤
    • 쿄노,요이치
    • H02M3/28H02M7/12
    • H02M3/285H02M2001/0058Y02B70/1491
    • A switching power-supply apparatus includes a first converter 3, a second converter 4, an output smoothing capacitor Co1, a series resonance circuit 1 and a control circuit 11. The first converter 3, in which switching elements Q11 and Q12 are connected to both ends of a direct-current power-supply Vin in series, and a capacitor Ci1 and a primary winding Np1 of a transformer T1 including an auxiliary winding Na1 are connected to both ends of the switching element Q12 in series, includes diodes D11 and D12 that rectify voltages generated in secondary windings Ns11 and Ns12 of the transformer T1. The second converter 4, in which switching elements Q21 and Q22 are connected to the both ends of the direct-current power-supply Vin in series, and a capacitor Ci12 and a primary winding Np2 of a transformer T2 are connected to both ends of the switching element Q22 in series, includes diodes D21 and D22 that rectify voltages generated in secondary windings Ns21 and Ns22 of the transformer T2. The output smoothing capacitor Co1 smoothes currents output from the diodes D11, D12, D21 and D22. The series resonance circuit 1 includes a resonance reactor L1 and a resonance capacitor C1 connected to the auxiliary winding Na1 in series. The control circuit 11 turns on/off the switching elements Q21 and Q22 according to a current flowing in the series resonance circuit 1.
    • 110. 发明公开
    • 영 전압 스위칭을 사용하는 다상 DC―DC 컨버터
    • 使用零电压开关的多相DC-DC转换器
    • KR1020120010117A
    • 2012-02-02
    • KR1020110050666
    • 2011-05-27
    • 인터실 아메리카스 엘엘씨
    • 무사우이,자키
    • H02M3/155G05F1/10
    • H02M3/005H02M1/34H02M3/1584H02M2001/0058Y02B70/1491
    • PURPOSE: A multi phase DC-DC converter using zero-voltage switching is provided to respectively control one or more of a first switch capacitance network and a plurality of second capacitance networks based on zero-voltage switching. CONSTITUTION: An input voltage source(101) develops a DC input voltage over a reference node which is illustrated with ground. An inductor(L) is connected to a first middle node(102) which develops a voltage. An electronic switch(S1) includes a drain connected to a node and a source connected to ground. A capacitor(C1) is connected between the first middle node and ground. The switch and the capacitor form a switch capacitance network(P1). One end of the capacitor is connected to a second intermediate node(104) which develops the voltage. The switch(S2) and the capacitor(C2) form another switch capacitance network(P2). A switch control module(103) receives the voltage of the intermediate node and a clock signal.
    • 目的:提供一种使用零电压切换的多相DC-DC转换器,分别基于零电压开关分别控制第一开关电容网络和多个第二电容网络中的一个或多个。 构成:输入电压源(101)在通过地面示出的参考节点上产生直流输入电压。 电感器(L)连接到产生电压的第一中间节点(102)。 电子开关(S1)包括连接到节点的漏极和连接到地的源极。 电容器(C1)连接在第一中间节点和地之间。 开关和电容器形成开关电容网络(P1)。 电容器的一端连接到产生电压的第二中间节点(104)。 开关(S2)和电容器(C2)形成另一个开关电容网络(P2)。 开关控制模块(103)接收中间节点的电压和时钟信号。