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：US20200235670A1

公开(公告)日：2020-07-23

申请号：US16745373

申请日：2020-01-17

Applicant: FSP-Powerland Technology Inc.

Inventor： Ming XU

IPC: H02M3/158

Abstract: The present disclosure discloses a voltage regulating apparatus, including a pre-stage circuit and a post-stage circuit. The pre-stage circuit receives an input voltage and outputs an intermediate bus voltage, and the post-stage circuit receives the intermediate bus voltage and outputs an output voltage. The post-stage circuit includes a plurality of post-stage converters, the post-stage converters are connected in parallel in an interleaved manner. In this way, the post-stage circuit has a small inductance, thereby reducing the volume of the apparatus and increasing the power density of the apparatus.

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：US20150070956A1

公开(公告)日：2015-03-12

申请号：US14472395

申请日：2014-08-29

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

Inventor： Jian-Guo Mu ,  Chuan-Yun Wang ,  Ming Xu

IPC: H02M7/5387 ,  H02M3/335

CPC classification number: H02M7/53871 ,  H02M3/3376 ,  H02M7/4826 ,  H02M2001/0058 ,  H02M2001/007 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: An inverter and a direct current (DC) bus voltage regulating method thereof are provided. The inverter includes a resonant conversion circuit, an inverting circuit, a first control circuit and a second control circuit. The resonant conversion circuit receives a DC input voltage and converts the same into a DC bus voltage. The inverting circuit couples to the resonant conversion circuit, and configured to convert the DC bus voltage into an AC output voltage. The first control circuit is configured to control operations of the resonant conversion circuit, where the first control circuit calculates a best working voltage of the resonant conversion circuit based on the DC input voltage and a resonant frequency of the resonant conversion circuit. The second control circuit controls operations of the inverting circuit, where the second control circuit receives the best working voltage calculated by the first control circuit and regulates the DC bus voltage accordingly.

Abstract translation: 提供了一种逆变器及其直流（DC）母线电压调节方法。 逆变器包括谐振转换电路，反相电路，第一控制电路和第二控制电路。 谐振转换电路接收直流输入电压并将其转换为直流母线电压。 反相电路耦合到谐振转换电路，并被配置为将DC总线电压转换成AC输出电压。 第一控制电路被配置为控制谐振转换电路的操作，其中第一控制电路基于DC输入电压和谐振转换电路的谐振频率来计算谐振转换电路的最佳工作电压。 第二控制电路控制反相电路的操作，其中第二控制电路接收由第一控制电路计算的最佳工作电压，并相应地调节DC总线电压。

公开(公告)号：US20150049525A1

公开(公告)日：2015-02-19

申请号：US14331213

申请日：2014-07-14

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

Inventor： Jian-Guo Mu ,  Feng Ji ,  Xiong Fang ,  Chuan-Yun Wang ,  Ming Xu

IPC: H02M7/5387

CPC classification number: H02M7/53871 ,  H02M3/33561 ,  H02M2001/0006 ,  H02M2001/007

Abstract: An inverter and a power supply method thereof and an application thereof are provided. The inverter includes a DC-DC conversion circuit, an inverting circuit and an auxiliary power circuit. The DC-DC conversion circuit converts a DC input voltage into a DC bus voltage. The inverting circuit is configured to convert the DC bus voltage into an AC output voltage. The auxiliary power circuit is enabled in response to the DC input voltage, and the auxiliary power circuit generates a first auxiliary power for enabling the DC-DC conversion circuit after being enabled. The DC-DC conversion circuit is enabled in response to the first auxiliary power, and the DC-DC conversion circuit generates a second auxiliary power for enabling the inverting circuit after being enabled, such that the inverting circuit is enabled in response to the second auxiliary power and generates the AC output voltage.

Abstract translation: 提供了一种逆变器及其电源方法及其应用。 逆变器包括DC-DC转换电路，反相电路和辅助电源电路。 DC-DC转换电路将DC输入电压转换为DC总线电压。 反相电路被配置为将DC总线电压转换成AC输出电压。 辅助电源电路响应于直流输入电压而使能，并且辅助电源电路产生第一辅助电源，用于使能DC-DC转换电路。 DC-DC转换电路响应于第一辅助电源而被使能，并且DC-DC转换电路产生第二辅助电源，以在使能之后使反相电路能够被使能，使得反相电路响应于第二辅助电源而被使能 电源并产生交流输出电压。

公开(公告)号：US09484838B2

公开(公告)日：2016-11-01

申请号：US14331213

申请日：2014-07-14

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

Inventor： Jian-Guo Mu ,  Feng Ji ,  Xiong Fang ,  Chuan-Yun Wang ,  Ming Xu

IPC: H02M5/458 ,  H02M7/5387 ,  H02M3/335 ,  H02M1/00

CPC classification number: H02M7/53871 ,  H02M3/33561 ,  H02M2001/0006 ,  H02M2001/007

Abstract: An inverter and a power supply method thereof and an application thereof are provided. The inverter includes a DC-DC conversion circuit, an inverting circuit and an auxiliary power circuit. The DC-DC conversion circuit converts a DC input voltage into a DC bus voltage. The inverting circuit is configured to convert the DC bus voltage into an AC output voltage. The auxiliary power circuit is enabled in response to the DC input voltage, and the auxiliary power circuit generates a first auxiliary power for enabling the DC-DC conversion circuit after being enabled. The DC-DC conversion circuit is enabled in response to the first auxiliary power, and the DC-DC conversion circuit generates a second auxiliary power for enabling the inverting circuit after being enabled, such that the inverting circuit is enabled in response to the second auxiliary power and generates the AC output voltage.

Abstract translation: 提供了一种逆变器及其电源方法及其应用。 逆变器包括DC-DC转换电路，反相电路和辅助电源电路。 DC-DC转换电路将DC输入电压转换为DC总线电压。 反相电路被配置为将DC总线电压转换成AC输出电压。 辅助电源电路响应于直流输入电压而使能，并且辅助电源电路产生第一辅助电源，用于使能DC-DC转换电路。 DC-DC转换电路响应于第一辅助电源而被使能，并且DC-DC转换电路产生第二辅助电源，以在使能之后使反相电路能够被使能，使得反相电路响应于第二辅助电源而被使能 电源并产生交流输出电压。

公开(公告)号：US09455622B2

公开(公告)日：2016-09-27

申请号：US14324086

申请日：2014-07-04

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

Inventor： Chuan-Yun Wang ,  Ming Xu ,  Jian-Guo Mu

IPC: H02M1/32 ,  H02M7/5387 ,  H02M1/00

CPC classification number: H02M1/32 ,  H02M7/5387 ,  H02M2001/0009

Abstract: An inverter and an over current protection method thereof are provided. The inverter includes an inverting circuit, a filtering capacitor and an over current protection circuit. The inverting circuit is configured to convert a DC input voltage into an AC output voltage and provide the AC output voltage to a load. The filtering capacitor is coupled to the inverting circuit and the load in parallel. The over current protection circuit is coupled to the inverting circuit and the filtering capacitor and configured to provide an over current protection mechanism. The over current protection circuit detects an AC current on the filtering capacitor and determines whether to enable the over current protection mechanism according to the AC current in order to restrain the power conversion operation of the inverting circuit.

Abstract translation: 提供了一种逆变器及其过电流保护方法。 逆变器包括反相电路，滤波电容器和过流保护电路。 反相电路被配置为将DC输入电压转换为AC输出电压并将AC输出电压提供给负载。 滤波电容器并联耦合到反相电路和负载。 过电流保护电路耦合到反相电路和滤波电容器，并配置成提供过流保护机构。 过流保护电路检测滤波电容器上的交流电流，并根据交流电流确定是否使能过电流保护机构，以抑制反相电路的电力转换操作。

公开(公告)号：US09287803B2

公开(公告)日：2016-03-15

申请号：US14472395

申请日：2014-08-29

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

Inventor： Jian-Guo Mu ,  Chuan-Yun Wang ,  Ming Xu

IPC: H02M7/5387 ,  H02M3/335 ,  H02M7/48 ,  H02M3/337 ,  H02M1/00

CPC classification number: H02M7/53871 ,  H02M3/3376 ,  H02M7/4826 ,  H02M2001/0058 ,  H02M2001/007 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: An inverter and a direct current (DC) bus voltage regulating method thereof are provided. The inverter includes a resonant conversion circuit, an inverting circuit, a first control circuit and a second control circuit. The resonant conversion circuit receives a DC input voltage and converts the same into a DC bus voltage. The inverting circuit couples to the resonant conversion circuit, and configured to convert the DC bus voltage into an AC output voltage. The first control circuit is configured to control operations of the resonant conversion circuit, where the first control circuit calculates a best working voltage of the resonant conversion circuit based on the DC input voltage and a resonant frequency of the resonant conversion circuit. The second control circuit controls operations of the inverting circuit, where the second control circuit receives the best working voltage calculated by the first control circuit and regulates the DC bus voltage accordingly.

Abstract translation: 提供了一种逆变器及其直流（DC）母线电压调节方法。 逆变器包括谐振转换电路，反相电路，第一控制电路和第二控制电路。 谐振转换电路接收直流输入电压并将其转换为直流母线电压。 反相电路耦合到谐振转换电路，并被配置为将DC总线电压转换成AC输出电压。 第一控制电路被配置为控制谐振转换电路的操作，其中第一控制电路基于DC输入电压和谐振转换电路的谐振频率来计算谐振转换电路的最佳工作电压。 第二控制电路控制反相电路的操作，其中第二控制电路接收由第一控制电路计算的最佳工作电压，并相应地调节DC总线电压。

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。