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：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：US20050036337A1

公开(公告)日：2005-02-17

申请号：US10916307

申请日：2004-08-11

申请人： Qingyou Zhang ,  Aibin Qiu ,  Jianping Ying ,  Jianhong Zeng

发明人： Qingyou Zhang ,  Aibin Qiu ,  Jianping Ying ,  Jianhong Zeng

IPC分类号： H02M3/158 ,  H02M3/335

CPC分类号： H02M3/1584 ,  H02M1/4225 ,  H02M2003/1586 ,  Y02B70/126 ,  Y02P80/112

摘要： The provided method and control circuit are employed to alternately control the dual boost PFC circuits. The control circuit for alternately controlling parallel-connected first and second boost circuits of a dual boost PFC circuit to achieve a current-sharing of the first and the second boost circuits includes: a first control circuit having a first current control loop for employing an output voltage of the PFC circuit, a feed-forward voltage, and an input reference voltage to generate a current reference, and sending the current reference to an input terminal of the first current control loop to generate a first PWM signal to drive the first boost circuit, and a second control circuit having a second current control loop for receiving the current reference through an input terminal of the second current control loop to generate a second PWM signal to drive the second boost circuit.

摘要翻译： 所提供的方法和控制电路用于交替地控制双升压PFC电路。 用于交替地控制双升压PFC电路的并联连接的第一和第二升压电路以实现第一和第二升压电路的电流共享的控制电路包括：第一控制电路，具有用于采用输出 PFC电路的电压，前馈电压和输入参考电压以产生电流参考，并且将电流基准发送到第一电流控制环路的输入端以产生第一PWM信号以驱动第一升压电路 以及具有第二电流控制回路的第二控制电路，用于通过第二电流控制回路的输入端接收电流基准，以产生驱动第二升压电路的第二PWM信号。

公开(公告)号：US07116087B2

公开(公告)日：2006-10-03

申请号：US10916307

申请日：2004-08-11

申请人： Qingyou Zhang ,  Aibin Qiu ,  Jianping Ying ,  Jianhong Zeng

发明人： Qingyou Zhang ,  Aibin Qiu ,  Jianping Ying ,  Jianhong Zeng

IPC分类号： G05F1/40

CPC分类号： H02M3/1584 ,  H02M1/4225 ,  H02M2003/1586 ,  Y02B70/126 ,  Y02P80/112

摘要： The provided method and control circuit are employed to alternately control the dual boost PFC circuits. The control circuit for alternately controlling parallel-connected first and second boost circuits of a dual boost PFC circuit to achieve a current-sharing of the first and the second boost circuits includes: a first control circuit having a first current control loop for employing an output voltage of the PFC circuit, a feed-forward voltage, and an input reference voltage to generate a current reference, and sending the current reference to an input terminal of the first current control loop to generate a first PWM signal to drive the first boost circuit, and a second control circuit having a second current control loop for receiving the current reference through an input terminal of the second current control loop to generate a second PWM signal to drive the second boost circuit.

摘要翻译： 所提供的方法和控制电路用于交替地控制双升压PFC电路。 用于交替地控制双升压PFC电路的并联连接的第一和第二升压电路以实现第一和第二升压电路的电流共享的控制电路包括：第一控制电路，具有用于采用输出 PFC电路的电压，前馈电压和输入参考电压以产生电流参考，并且将电流基准发送到第一电流控制环路的输入端以产生第一PWM信号以驱动第一升压电路 以及具有第二电流控制回路的第二控制电路，用于通过第二电流控制回路的输入端接收电流基准，以产生驱动第二升压电路的第二PWM信号。

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：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：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：US20080198631A1

公开(公告)日：2008-08-21

申请号：US11834828

申请日：2007-08-07

申请人： Jianhong Zeng ,  Yuanyuan Zhang ,  Aibin Qiu ,  Kun Wei ,  Jianping Ying

发明人： Jianhong Zeng ,  Yuanyuan Zhang ,  Aibin Qiu ,  Kun Wei ,  Jianping Ying

IPC分类号： H02M3/335 ,  G05F3/06

CPC分类号： H02M3/3376 ,  H02M2007/4803

摘要： Provided is a flux regulation method for use in a power converter, wherein the method is carried out by a flux bias controller. The flux bias controller includes a current detector which is configured to detect the primary current of the transformer of the power converter in a predetermined switching cycle, a DC bias processor which is configured to obtain the duty ratio control signal according to the sampled primary current outputted from the current detector for a switching cycle later than the predetermined switching cycle, and a PWM controller which is configured to generate driving signals to control the on/off operations of the switching circuit of the power converter according to the duty ratio control signal, thereby suppressing the DC bias of the transformer by regulating the duty ratio of the switch circuit.

摘要翻译： 提供了一种用于功率转换器的磁通调节方法，其中该方法由磁通偏压控制器执行。 通量偏置控制器包括电流检测器，其被配置为在预定的开关周期内检测功率转换器的变压器的初级电流; DC偏置处理器，被配置为根据所输出的采样的一次电流获得占空比控制信号 从电流检测器开始比预定开关周期晚的开关周期，以及PWM控制器，其被配置为产生驱动信号，以根据占空比控制信号来控制功率转换器的开关电路的接通/断开操作，由此 通过调节开关电路的占空比来抑制变压器的直流偏压。