公开(公告)号：US07061777B2

公开(公告)日：2006-06-13

申请号：US10907831

申请日：2005-04-18

申请人： Jianhong Zeng ,  Jianping Ying ,  Xiaojun Deng ,  Xingkuan Guo ,  Aiming Xiong

发明人： Jianhong Zeng ,  Jianping Ying ,  Xiaojun Deng ,  Xingkuan Guo ,  Aiming Xiong

IPC分类号： H02M3/335 ,  H02M7/538

CPC分类号： H02M3/33569 ,  H02M7/487

摘要： An input stage circuit of a three-level DC/DC converter is provided. The input stage circuit uses metal-oxide-semiconductor field effect transistors (MOSFETs) to discharge a flying capacitor to maintain the voltage across the flying capacitor at a half of the input voltage. Not only can the input stage circuit solve the high voltage issue across the flying capacitor in the prior art, but the circuit is able to operate normally without increasing power consumption during discharging, thereby avoiding problems of the prior art.

摘要翻译： 提供三电平DC / DC转换器的输入级电路。 输入级电路使用金属氧化物半导体场效应晶体管（MOSFET）来放电飞跨电容器，以将跨越电容器的电压保持在输入电压的一半。 输入级电路不仅可以解决现有技术中跨越飞溅电容器的高电压问题，而且电路能够正常工作，而不会在放电期间增加功耗，从而避免了现有技术的问题。

公开(公告)号：US20060050537A1

公开(公告)日：2006-03-09

申请号：US10907831

申请日：2005-04-18

申请人： Jianhong Zeng ,  Jianping Ying ,  Xiaojun Deng ,  Xingkuan Guo ,  Aiming Xiong

发明人： Jianhong Zeng ,  Jianping Ying ,  Xiaojun Deng ,  Xingkuan Guo ,  Aiming Xiong

IPC分类号： H02M3/335

CPC分类号： H02M3/33569 ,  H02M7/487

摘要： An input stage circuit of a three-level DC/DC converter is provided. The input stage circuit uses metal-oxide-semiconductor field effect transistors (MOSFETs) to discharge a flying capacitor to maintain the voltage across the flying capacitor at a half of the input voltage. Not only can the input stage circuit solve the high voltage issue across the flying capacitor in the prior art, but the circuit is able to operate normally without increasing power consumption during discharging, thereby avoiding problems of the prior art.

摘要翻译： 提供三电平DC / DC转换器的输入级电路。 输入级电路使用金属氧化物半导体场效应晶体管（MOSFET）来放电飞跨电容器，以将跨越电容器的电压保持在输入电压的一半。 输入级电路不仅可以解决现有技术中跨越飞溅电容器的高电压问题，而且电路能够正常工作，而不会在放电期间增加功耗，从而避免了现有技术的问题。

公开(公告)号：US20050036341A1

公开(公告)日：2005-02-17

申请号：US10916306

申请日：2004-08-11

申请人： Teng Liu ,  Xingkuan Guo ,  Jianping Ying ,  Jianhong Zeng

发明人： Teng Liu ,  Xingkuan Guo ,  Jianping Ying ,  Jianhong Zeng

IPC分类号： H02M3/335 ,  H02M7/5387

CPC分类号： H02M7/5387 ,  H02M3/33569

摘要： The power converters employing the provided methods and controllers are proposed. The controller includes: a signal preprocessor for generating a current signal according to a sensed current of the transformer, an integrator electrically connected to the signal preprocessor for integrating the current signal and offering an integrated signal, a synthesizer electrically connected to the integrator for receiving and synthesizing the integrated signal and a slope compensation signal to generate a synthesized signal, an operational amplifier of a control loop for generating an amplified error signal, and a PWM comparator electrically connected to the operational amplifier and the synthesizer for comparing the amplified error signal and the synthesized signal and generating a PWM signal to turn on and off a switch of the transformer accordingly.

公开(公告)号：US20050024028A1

公开(公告)日：2005-02-03

申请号：US10903154

申请日：2004-07-30

申请人： Jianping Ying ,  Qingyou Zhang ,  Aibin Qiu ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng

发明人： Jianping Ying ,  Qingyou Zhang ,  Aibin Qiu ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng

IPC分类号： H02M1/00 ,  H02M3/158 ,  H02M3/337 ,  G05F1/40

CPC分类号： H02M3/1584 ,  H02M1/4208 ,  H02M3/337 ,  H02M2001/007 ,  Y02B70/126

摘要： An apparatus for reducing the heat losses caused by the DC Bus capacitor current is proposed. The apparatus includes: a double frequency boost converter circuit having two boost converter circuits coupled in parallel, in which two switches, respectively disposed on the two boost converter circuits, are turned on and off alternately to produce an output current having a frequency twice that of control signals of the two switches, and to offer a DC bus respectively, a full-bridge DC-DC converter coupled to an output terminal of the double frequency boost converter circuit for transforming an output of the DC bus to a DC voltage, and a DC bus capacitor coupled to the double frequency boost converter circuit and the full-bridge DC-DC converter in parallel for balancing two corresponding transient powers of the double frequency boost converter circuit and the full-bridge DC-DC converter respectively.

摘要翻译： 提出了一种降低由直流总线电容器电流引起的热损失的装置。 该装置包括：具有并联耦合的两个升压转换器电路的双倍升压转换器电路，其中分别布置在两个升压转换器电路上的两个开关交替地导通和截止，以产生具有频率两倍的频率的输出电流 控制所述两个开关的信号，并分别提供DC总线，耦合到所述双倍升压转换器电路的输出端的全桥DC-DC转换器，用于将所述DC总线的输出转换为DC电压，以及 分别与双倍升压转换器电路和全桥DC-DC转换器并联的DC总线电容器分别平衡双倍升压转换器电路和全桥DC-DC转换器的两个对应的瞬态功率。

公开(公告)号：US07099134B2

公开(公告)日：2006-08-29

申请号：US10852793

申请日：2004-05-24

申请人： Jianping Ying ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng

发明人： Jianping Ying ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng

IPC分类号： H02H3/20 ,  H02H7/00

CPC分类号： H02M3/155 ,  H02M1/32

摘要： An apparatus for preventing a boost converter from an abnormal operation is provided. The boost converter includes a transformer, a full-wave rectifier circuit electrically connected to a secondary winding of the transformer, an output filter inductor, an output filter capacitor, a clamping circuit having two clamping diodes with two anodes electrically connected to each other to form a common-anode terminal, a first clamping capacitor with a first terminal electrically connected to a node joining the filter inductor and the filter capacitor, and a second terminal electrically connected to the common-anode terminal, and an energy recycle circuit, and the apparatus includes a controllable voltage source having a first terminal electrically connected to the node and a second terminal electrically connected to the energy recycle circuit.

摘要翻译： 提供一种用于防止升压转换器发生异常操作的装置。 升压转换器包括变压器，电连接到变压器的次级绕组的全波整流电路，输出滤波电感器，输出滤波电容器，具有两个钳位二极管的钳位电路，两个钳位二极管彼此电连接以形成 公共阳极端子，具有与连接滤波电感器的节点电连接的第一端子和滤波电容器的第一钳位电容器和电连接到共阳极端子的第二端子和能量再循环电路，并且该装置 包括可控电压源，其具有电连接到所述节点的第一端子和电连接到所述能量再循环电路的第二端子。

公开(公告)号：US07184287B2

公开(公告)日：2007-02-27

申请号：US10902356

申请日：2004-07-29

申请人： Jianping Ying ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng ,  Yue Fu

发明人： Jianping Ying ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng ,  Yue Fu

IPC分类号： H02M7/5387 ,  H02H7/125

CPC分类号： H02M1/34 ,  H02M3/33576 ,  H02M2001/342 ,  Y02B70/1491

摘要： An energy-feedback clamping circuit of a power converter is proposed. The converter includes a transformer coupled to a full-wave rectifier circuit. The clamping circuit includes: two clamping diodes having two anodes coupled to each other at a common-anode terminal and two cathodes coupled to two terminals of a secondary winding of the transformer, a first clamping capacitor having a first terminal coupled to a cathode of a first rectifying diode of the rectifier circuit and a second terminal coupled to the common-anode terminal, a second clamping capacitor having a first terminal coupled to a connecting node of the output filtering inductor and capacitor of the rectifier circuit and a second terminal coupled to the common-anode terminal, and a converter circuit having an input terminal coupled to the second clamping capacitor and an output terminal for offering a power source.

摘要翻译： 提出了一种功率转换器的能量反馈钳位电路。 该转换器包括耦合到全波整流电路的变压器。 钳位电路包括：两个钳位二极管，其具有在共阳极端子处彼此耦合的两个阳极和耦合到变压器的次级绕组的两个端子的两个阴极;第一钳位电容器，具有耦合到 整流电路的第一整流二极管和耦合到共阳极端子的第二端子，第二钳位电容器，其具有耦合到输出滤波电感器和整流器电路的电容器的连接节点的第一端子，以及耦合到整流电路的第二端子 公共阳极端子和具有耦合到第二钳位电容器的输入端子的转换器电路和用于提供电源的输出端子。

公开(公告)号：US07009852B2

公开(公告)日：2006-03-07

申请号：US10903154

申请日：2004-07-30

申请人： Jianping Ying ,  Qingyou Zhang ,  Aibin Qiu ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng

发明人： Jianping Ying ,  Qingyou Zhang ,  Aibin Qiu ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng

IPC分类号： H02M3/335

CPC分类号： H02M3/1584 ,  H02M1/4208 ,  H02M3/337 ,  H02M2001/007 ,  Y02B70/126

摘要： An apparatus for reducing the heat losses caused by the DC Bus capacitor current is proposed. The apparatus includes: a double frequency boost converter circuit having two boost converter circuits coupled in parallel, in which two switches, respectively disposed on the two boost converter circuits, are turned on and off alternately to produce an output current having a frequency twice that of control signals of the two switches, and to offer a DC bus respectively, a full-bridge DC-DC converter coupled to an output terminal of the double frequency boost converter circuit for transforming an output of the DC bus to a DC voltage, and a DC bus capacitor coupled to the double frequency boost converter circuit and the full-bridge DC-DC converter in parallel for balancing two corresponding transient powers of the double frequency boost converter circuit and the full-bridge DC-DC converter respectively.

摘要翻译： 提出了一种降低由直流总线电容器电流引起的热损失的装置。 该装置包括：具有并联耦合的两个升压转换器电路的双倍升压转换器电路，其中分别布置在两个升压转换器电路上的两个开关交替地导通和截止，以产生具有频率两倍的频率的输出电流 控制所述两个开关的信号，并分别提供DC总线，耦合到所述双倍升压转换器电路的输出端的全桥DC-DC转换器，用于将所述DC总线的输出转换为DC电压，以及 分别与双倍升压转换器电路和全桥DC-DC转换器并联的DC总线电容器分别平衡双倍升压转换器电路和全桥DC-DC转换器的两个对应的瞬态功率。

公开(公告)号：US06937486B2

公开(公告)日：2005-08-30

申请号：US10916306

申请日：2004-08-11

申请人： Teng Liu ,  Xingkuan Guo ,  Jianping Ying ,  Jianhong Zeng

发明人： Teng Liu ,  Xingkuan Guo ,  Jianping Ying ,  Jianhong Zeng

IPC分类号： H02M3/335 ,  H02M7/5387 ,  H02M1/12

CPC分类号： H02M7/5387 ,  H02M3/33569

摘要： The power converters employing the provided methods and controllers are proposed. The controller includes: a signal preprocessor for generating a current signal according to a sensed current of the transformer, an integrator electrically connected to the signal preprocessor for integrating the current signal and offering an integrated signal, a synthesizer electrically connected to the integrator for receiving and synthesizing the integrated signal and a slope compensation signal to generate a synthesized signal, an operational amplifier of a control loop for generating an amplified error signal, and a PWM comparator electrically connected to the operational amplifier and the synthesizer for comparing the amplified error signal and the synthesized signal and generating a PWM signal to turn on and off a switch of the transformer accordingly.

摘要翻译： 提出了采用所提供的方法和控制器的功率转换器。 该控制器包括：信号预处理器，用于根据变压器的感测电流产生电流信号;电连接到信号预处理器的积分器，用于积分电流信号并提供积分信号;合成器，电连接到积分器，用于接收和 合成积分信号和斜率补偿信号以产生合成信号，用于产生放大误差信号的控制环路的运算放大器和电连接到运算放大器和合成器的PWM比较器，用于将放大的误差信号和 合成信号并产生PWM信号以相应地导通和关断变压器的开关。

公开(公告)号：US20050024803A1

公开(公告)日：2005-02-03

申请号：US10902356

申请日：2004-07-27

申请人： Jianping Ying ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng ,  Yue Fu

发明人： Jianping Ying ,  Teng Liu ,  Xingkuan Guo ,  Jianhong Zeng ,  Yue Fu

IPC分类号： H02M1/34 ,  H02M3/335 ,  H02H3/26

CPC分类号： H02M1/34 ,  H02M3/33576 ,  H02M2001/342 ,  Y02B70/1491

摘要： An energy-feedback clamping circuit of a power converter is proposed. The converter includes a transformer coupled to a full-wave rectifier circuit. The clamping circuit includes: two clamping diodes having two anodes coupled to each other at a common-anode terminal and two cathodes coupled to two terminals of a secondary winding of the transformer, a first clamping capacitor having a first terminal coupled to a cathode of a first rectifying diode of the rectifier circuit and a second terminal coupled to the common-anode terminal, a second clamping capacitor having a first terminal coupled to a connecting node of the output filtering inductor and capacitor of the rectifier circuit and a second terminal coupled to the common-anode terminal, and a converter circuit having an input terminal coupled to the second clamping capacitor and an output terminal for offering a power source.

摘要翻译： 提出了一种功率转换器的能量反馈钳位电路。 该转换器包括耦合到全波整流电路的变压器。 钳位电路包括：两个钳位二极管，其具有在共阳极端子处彼此耦合的两个阳极和耦合到变压器的次级绕组的两个端子的两个阴极;第一钳位电容器，具有耦合到 整流电路的第一整流二极管和耦合到共阳极端子的第二端子，第二钳位电容器，其具有耦合到输出滤波电感器和整流器电路的电容器的连接节点的第一端子，以及耦合到整流电路的第二端子 公共阳极端子和具有耦合到第二钳位电容器的输入端子的转换器电路和用于提供电源的输出端子。

公开(公告)号：US20070152795A1

公开(公告)日：2007-07-05

申请号：US11443206

申请日：2006-05-31

申请人： Jian Zeng ,  Teng Liu ,  Jianping Ying ,  Fan Li ,  Aiming Xiong ,  Ziying Zhou ,  Haoyi Ye ,  Xiaoni Xin

发明人： Jian Zeng ,  Teng Liu ,  Jianping Ying ,  Fan Li ,  Aiming Xiong ,  Ziying Zhou ,  Haoyi Ye ,  Xiaoni Xin

IPC分类号： H01F27/24

CPC分类号： H01F27/2804 ,  H01F17/0013 ,  H01F2027/2819 ,  H05K1/165

摘要： The present invention discloses a transformer structure. The transformer structure comprises a first primary winding, and a first secondary circuits. The first secondary circuits comprises a filtering capacitor, a conductive Cu windings and a rectifier configured onto the printed circuit board (PCB) forming the first secondary circuits PCB winding. The first primary winding and the secondary circuits are interleaved with each other.

摘要翻译： 本发明公开了一种变压器结构。 变压器结构包括第一初级绕组和第一次级电路。 第一次级电路包括滤波电容器，导电Cu绕组和布置在形成第一次级电路PCB绕组的印刷电路板（PCB）上的整流器。 第一初级绕组和次级电路彼此交错。