公开(公告)号：US09362835B2

公开(公告)日：2016-06-07

申请号：US14460381

申请日：2014-08-15

Applicant: FSP-Powerland Technology Inc. ,  FSP TECHNOLOGY INC.

Inventor： Ming Xu ,  Fei-Yue Duan

IPC: H02M3/335 ,  H02M1/00

CPC classification number: H02M3/33569 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

Abstract: A resonant power conversion apparatus and a controlling method of the resonant power conversion apparatus are provided. The resonant power conversion apparatus includes a switch-based resonant converter and a controller. The switch-based resonant converter is configured to supply power to a load. The controller is coupled to the switch-based resonant converter and the load and configured to control switching of the switch-based resonant converter to regulate power conversion of the switch-based resonant converter. The controller has a voltage control loop and a current control loop. The controller detects a driving state of the load and enables one of the voltage control loop and the current control loop according to the detection result to adjust a switching frequency of the switch-based resonant converter.

Abstract translation: 提供了一种谐振电力转换装置和谐振电力转换装置的控制方法。 谐振功率转换装置包括基于开关的谐振转换器和控制器。 基于开关的谐振转换器被配置为向负载供电。 控制器耦合到基于开关的谐振转换器和负载并被配置为控制基于开关的谐振转换器的开关以调节基于开关的谐振转换器的功率转换。 控制器具有电压控制回路和电流控制回路。 控制器检测负载的驱动状态，并根据检测结果使电压控制回路和电流控制回路之一调整开关谐振转换器的开关频率。

公开(公告)号：US20150049520A1

公开(公告)日：2015-02-19

申请号：US14454734

申请日：2014-08-08

Applicant: FSP-Powerland Technology Inc. ,  FSP TECHNOLOGY INC.

Inventor： Ming Xu ,  Fei-Yue Duan

IPC: H02M1/32 ,  H02M3/335

CPC classification number: H02M1/32 ,  H02M3/33569 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

Abstract: A resonant converter and its controlling method are provided. The resonant converter includes a bridge switching circuit receiving a DC input voltage through its power terminal, a resonant and transforming circuit, a rectifying and filtering circuit, and an over-current protecting circuit. The resonant and transforming circuit has at least one resonant capacitor charged/discharged in response to the switching of the bridge switching circuit. The rectifying and filtering circuit rectifies and filters outputs of the resonant and transforming circuit, and generates a driving voltage accordingly. The over-current protecting circuit is coupled to the power terminal and crosses over the resonant capacitor to form a clamp path. The over-current protecting circuit detects a current flowing through the resonant and transforming circuit or a load and determines whether to conduct/cut off the clamp path according to the detection result to limit a cross voltage of the resonant capacitor within a first voltage range.

Abstract translation: 提供了一种谐振变换器及其控制方法。 谐振转换器包括桥接开关电路，其通过其电源端子接收DC输入电压，谐振和变换电路，整流和滤波电路以及过流保护电路。 谐振和变换电路响应于桥式开关电路的切换而具有至少一个谐振电容器充电/放电。 整流滤波电路对谐振和变换电路的输出进行整流和滤波，并相应产生驱动电压。 过电流保护电路耦合到电源端子并与谐振电容器交叉以形成钳位路径。 过电流保护电路检测流过谐振变换电路的电流或负载，并根据检测结果确定是否导通/切断钳位路径，以将谐振电容器的交叉电压限制在第一电压范围内。

公开(公告)号：US09653985B2

公开(公告)日：2017-05-16

申请号：US14454734

申请日：2014-08-08

Applicant: FSP-Powerland Technology Inc. ,  FSP TECHNOLOGY INC.

Inventor： Ming Xu ,  Fei-Yue Duan

IPC: H02M3/335 ,  H02M1/32 ,  H02M1/00

CPC classification number: H02M1/32 ,  H02M3/33569 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

Abstract: A resonant converter and its controlling method are provided. The resonant converter includes a bridge switching circuit receiving a DC input voltage through its power terminal, a resonant and transforming circuit, a rectifying and filtering circuit, and an over-current protecting circuit. The resonant and transforming circuit has at least one resonant capacitor charged/discharged in response to the switching of the bridge switching circuit. The rectifying and filtering circuit rectifies and filters outputs of the resonant and transforming circuit, and generates a driving voltage accordingly. The over-current protecting circuit is coupled to the power terminal and crosses over the resonant capacitor to form a clamp path. The over-current protecting circuit detects a current flowing through the resonant and transforming circuit or a load and determines whether to conduct/cut off the clamp path according to the detection result to limit a cross voltage of the resonant capacitor within a first voltage range.

公开(公告)号：US09564825B2

公开(公告)日：2017-02-07

申请号：US14497306

申请日：2014-09-25

Applicant: FSP-Powerland Technology Inc. ,  FSP TECHNOLOGY INC.

Inventor： Fei-Yue Duan ,  Ming Xu

IPC: H02M3/335 ,  H02M3/337 ,  H02M3/28 ,  H02M1/00

CPC classification number: H02M3/3376 ,  H02M3/285 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

Abstract: A parallel resonant converter including a control circuit and at least two resonant conversion circuits connected in parallel between an input bus and an output bus is provided by the invention. The control circuit is configured to provide a switching frequency signal to the at least two resonant conversion circuits. Moreover, the control circuit is further configured to control the voltage of the output bus to linearly vary along with the switching frequency signal in a rated range by using a linear current-balancing curve (gain-frequency), and thus achieving the purpose of current-balancing for the at least two resonant conversion circuits. The invention is capable of controlling the output voltage of the parallel resonant converter, so as to reduce the ripple on the output voltage of the power supply system.

Abstract translation: 本发明提供并联谐振变换器，其包括控制电路和至少两个谐振变换电路并联连接在输入总线和输出总线之间。 控制电路被配置为向至少两个谐振转换电路提供开关频率信号。 此外，控制电路还被配置为通过使用线性电流平衡曲线（增益 - 频率）来控制输出总线的电压与开关频率信号在额定范围内线性变化，从而实现电流的目的 用于至少两个谐振转换电路的平衡。 本发明能够控制并联谐振变换器的输出电压，以便减小电源系统的输出电压上的纹波。

公开(公告)号：US20150109830A1

公开(公告)日：2015-04-23

申请号：US14460381

申请日：2014-08-15

Applicant: FSP-Powerland Technology Inc. ,  FSP TECHNOLOGY INC.

Inventor： Ming Xu ,  Fei-Yue Duan

IPC: H02M3/335

CPC classification number: H02M3/33569 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

Abstract: A resonant power conversion apparatus and a controlling method of the resonant power conversion apparatus are provided. The resonant power conversion apparatus includes a switch-based resonant converter and a controller. The switch-based resonant converter is configured to supply power to a load. The controller is coupled to the switch-based resonant converter and the load and configured to control switching of the switch-based resonant converter to regulate power conversion of the switch-based resonant converter. The controller has a voltage control loop and a current control loop. The controller detects a driving state of the load and enables one of the voltage control loop and the current control loop according to the detection result to adjust a switching frequency of the switch-based resonant converter.

Abstract translation: 提供了一种谐振电力转换装置和谐振电力转换装置的控制方法。 谐振功率转换装置包括基于开关的谐振转换器和控制器。 基于开关的谐振转换器被配置为向负载供电。 控制器耦合到基于开关的谐振转换器和负载并被配置为控制基于开关的谐振转换器的开关以调节基于开关的谐振转换器的功率转换。 控制器具有电压控制回路和电流控制回路。 控制器检测负载的驱动状态，并根据检测结果使电压控制回路和电流控制回路之一调节开关谐振转换器的开关频率。

公开(公告)号：US20150103564A1

公开(公告)日：2015-04-16

申请号：US14497306

申请日：2014-09-25

Applicant: FSP-Powerland Technology Inc. ,  FSP TECHNOLOGY INC.

Inventor： Fei-Yue Duan ,  Ming Xu

IPC: H02M3/335

CPC classification number: H02M3/3376 ,  H02M3/285 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

Abstract: A parallel resonant converter including a control circuit and at least two resonant conversion circuits connected in parallel between an input bus and an output bus is provided by the invention. The control circuit is configured to provide a switching frequency signal to the at least two resonant conversion circuits. Moreover, the control circuit is further configured to control the voltage of the output bus to linearly vary along with the switching frequency signal in a rated range by using a linear current-balancing curve (gain-frequency), and thus achieving the purpose of current-balancing for the at least two resonant conversion circuits. The invention is capable of controlling the output voltage of the parallel resonant converter, so as to reduce the ripple on the output voltage of the power supply system.

Abstract translation: 本发明提供并联谐振变换器，其包括控制电路和至少两个谐振变换电路并联连接在输入总线和输出总线之间。 控制电路被配置为向至少两个谐振转换电路提供开关频率信号。 此外，控制电路还被配置为通过使用线性电流平衡曲线（增益 - 频率）来控制输出总线的电压与开关频率信号在额定范围内线性变化，从而实现电流的目的 用于至少两个谐振转换电路的平衡。 本发明能够控制并联谐振变换器的输出电压，以便减小电源系统的输出电压上的纹波。