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1. 发明公开

US20230170783A1 POWER SUPPLY DEVICE, CIRCUIT CONTROL METHOD, AND POWER SUPPLY SYSTEM 审中-公开
公开(公告)号：US20230170783A1
公开(公告)日：2023-06-01
申请号：US18147907
申请日：2022-12-29
申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. , POWERLAND TECHNOLOGY INC.
发明人： Chen TIAN , Jingpeng ZHU , Jialiang ZHANG , Ming XU
IPC分类号： H02M1/00 , H02J7/02 , H02M3/335
CPC分类号： H02M1/0067 , H02J7/02 , H02M3/33569 , H02J2207/20 , H02M3/01
摘要： A power supply device includes: an input rectifier circuit configured to convert a received alternating-current power into a first pulsating direct-current voltage; a first-stage conversion circuit connected with the input rectifier circuit and configured to convert the first pulsating direct-current voltage into a second pulsating direct-current voltage; a valley-fill circuit connected with the first-stage conversion circuit and configured to supply, in response to a voltage value of the second pulsating direct-current voltage being lower than a voltage threshold, electrical power to thereby enable the voltage value of the second pulsating direct-current voltage to be greater than or equal to the voltage threshold; and a second-stage conversion circuit connected with the first-stage conversion circuit and configured to convert the second pulsating direct-current voltage into a constant direct-current voltage and output the constant direct-current voltage.

2. 发明授权

US09362835B2 Resonant power conversion apparatus and controlling method thereof 有权
标题翻译：谐振电力转换装置及其控制方法
公开(公告)号：US09362835B2
公开(公告)日：2016-06-07
申请号：US14460381
申请日：2014-08-15
申请人： FSP-Powerland Technology Inc. , FSP TECHNOLOGY INC.
发明人： Ming Xu , Fei-Yue Duan
IPC分类号： H02M3/335 , H02M1/00
CPC分类号： H02M3/33569 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491 , Y02P80/112
摘要： 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.
摘要翻译：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。

3. 发明公开

US20230198371A1 POWER SOURCE PROVIDING APPARATUS, AND CHARGING METHOD AND SYSTEM 审中-公开
公开(公告)号：US20230198371A1
公开(公告)日：2023-06-22
申请号：US18148081
申请日：2022-12-29
申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. , POWERLAND TECHNOLOGY INC.
发明人： Chen TIAN , Jingpeng ZHU , Jialiang ZHANG , Ming XU
IPC分类号： H02M1/00 , H02J7/00 , H02J7/02 , H02M3/00 , H02M3/335 , H02M3/158
CPC分类号： H02M1/0067 , H02J7/00711 , H02J7/02 , H02J7/00712 , H02M3/01 , H02M3/33573 , H02M3/1582 , H02J2207/20
摘要： A power supply device, includes a rectifier circuit configured to perform rectification on alternating-current power to obtain a first pulsating direct-current voltage, a first-stage conversion circuit connected to the rectifier circuit and configured to perform isolation conversion on the first pulsating direct-current voltage to thereby obtain a second pulsating direct-current voltage; a second-stage conversion circuit connected to the first-stage conversion circuit and configured to convert the second pulsating direct-current voltage into a stable direct-current voltage; and a valley-fill circuit connected to the rectifier circuit and the first-stage conversion circuit individually, wherein the valley-fill circuit is configured to supply, in response to a voltage value of the first pulsating direct-current being less than a first voltage threshold, electrical power to an input of the first-stage conversion circuit to thereby increase a valley voltage of the first pulsating direct-current voltage.

4. 发明申请

US20200235670A1 Voltage regulating apparatus 审中-公开
公开(公告)号：US20200235670A1
公开(公告)日：2020-07-23
申请号：US16745373
申请日：2020-01-17
申请人： FSP-Powerland Technology Inc.
发明人： Ming XU
IPC分类号： H02M3/158
摘要： 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.

5. 发明授权

US09653985B2 Resonant converter and controlling method thereof 有权
公开(公告)号：US09653985B2
公开(公告)日：2017-05-16
申请号：US14454734
申请日：2014-08-08
申请人： FSP-Powerland Technology Inc. , FSP TECHNOLOGY INC.
发明人： Ming Xu , Fei-Yue Duan
IPC分类号： H02M3/335 , H02M1/32 , H02M1/00
CPC分类号： H02M1/32 , H02M3/33569 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491 , Y02P80/112
摘要： 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.

6. 发明授权

US09564825B2 Parallel resonant converter capable of controlling output voltage and control method thereof 有权
标题翻译：能够控制输出电压的并联谐振变换器及其控制方法
公开(公告)号：US09564825B2
公开(公告)日：2017-02-07
申请号：US14497306
申请日：2014-09-25
申请人： FSP-Powerland Technology Inc. , FSP TECHNOLOGY INC.
发明人： Fei-Yue Duan , Ming Xu
IPC分类号： H02M3/335 , H02M3/337 , H02M3/28 , H02M1/00
CPC分类号： H02M3/3376 , H02M3/285 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491 , Y02P80/112
摘要： 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.
摘要翻译：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。

7. 发明授权

US12021455B2 Power supply device and charging control method 有权
公开(公告)号：US12021455B2
公开(公告)日：2024-06-25
申请号：US17842046
申请日：2022-06-16
申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. , Powerland Technology Inc.
发明人： Chen Tian , Yao Zhou , Jialiang Zhang
IPC分类号： H02M3/335 , H02M1/00 , H02M3/00 , H02J7/00
CPC分类号： H02M3/33569 , H02M1/0009 , H02M3/01 , H02J7/007 , H02J2207/20
摘要： A power supply device and a charging control method are provided. The power supply device includes a first-stage conversion circuit and a second-stage conversion circuit; the first-stage conversion circuit is used for converting a received alternating current voltage into a pulsating direct current voltage, the voltage value of the pulsating direct current voltage being greater than the voltage value of the alternating current voltage; the second-stage conversion circuit is connected to the first-stage conversion circuit, and used for converting the pulsating direct current voltage to output a constant direct current voltage.

8. 发明申请

US20220302738A1 ADAPTER AND CHARGING METHOD 有权
公开(公告)号：US20220302738A1
公开(公告)日：2022-09-22
申请号：US17837863
申请日：2022-06-10
申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. , POWERLAND TECHNOLOGY INC.
发明人： Chen TIAN , Feng JI , Jialiang ZHANG
IPC分类号： H02J7/04 , H02J7/00 , G01R19/22 , H01F27/42 , H01F27/40
摘要： Provided are an adapter and a charging method. The adapter includes: at least one filter capacitor (210) having a capacitance smaller than a predetermined threshold and configured to filter a rectified alternating current to obtain a pulsating direct current; and a voltage transformation module (220) configured to transform the pulsating direct current to obtain a voltage and a current for charging a device to be charged. The adapter for charging a battery is provided, the volume of the adapter can be reduced and the miniaturization of the volume of the adapter can be realized.

9. 发明申请

US20150070956A1 INVERTER AND DIRECT CURRENT BUS VOLTAGE REGULATING METHOD THEREOF AND APPLICATION USING THE SAME 有权
标题翻译：逆变器和直流总线电压调节方法及其应用
公开(公告)号：US20150070956A1
公开(公告)日：2015-03-12
申请号：US14472395
申请日：2014-08-29
申请人： FSP-Powerland Technology Inc. , FSP TECHNOLOGY INC.
发明人： Jian-Guo Mu , Chuan-Yun Wang , Ming Xu
IPC分类号： H02M7/5387 , H02M3/335
CPC分类号： H02M7/53871 , H02M3/3376 , H02M7/4826 , H02M2001/0058 , H02M2001/007 , Y02B70/1433 , Y02B70/1441 , Y02B70/1491
摘要： 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.
摘要翻译：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。

10. 发明申请

US20150049525A1 INVERTER AND POWER SUPPLYING METHOD THEREOF AND APPLICATION USING THE SAME 有权
标题翻译：逆变器及其供电方法及其应用
公开(公告)号：US20150049525A1
公开(公告)日：2015-02-19
申请号：US14331213
申请日：2014-07-14
申请人： FSP-Powerland Technology Inc. , FSP TECHNOLOGY INC.
发明人： Jian-Guo Mu , Feng Ji , Xiong Fang , Chuan-Yun Wang , Ming Xu
IPC分类号： H02M7/5387
CPC分类号： H02M7/53871 , H02M3/33561 , H02M2001/0006 , H02M2001/007
摘要： 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.
摘要翻译：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。

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