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1. 发明授权

US09124170B2 Power factor correction device, and controller and THD attenuator used by same 有权
标题翻译：功率因数校正装置，以及由其使用的控制器和THD衰减器
公开(公告)号：US09124170B2
公开(公告)日：2015-09-01
申请号：US13878757
申请日：2011-10-11
申请人： Wenhao Gu , Runqin Tan , Lifang Guo
发明人： Wenhao Gu , Runqin Tan , Lifang Guo
IPC分类号： H02M1/12 , H02M1/42 , H02M3/335
CPC分类号： H02M1/12 , H02M1/4225 , H02M3/33507 , Y02B70/126 , Y02P80/112
摘要： A power factor correction device, and a controller and a total harmonic distortion (THD) attenuator used by same. The power factor correction device comprises a converter and a controller (320) connected to the converter to obtain an input voltage. The controller (320) comprises a THD attenuator (407) for automatic THD optimization. The converter comprises an input current detection resistor (3R8), a power switch tube (3NMOS) and an output circuit. The input current detection resistor (3R8), the power switch tube (3NMOS) and the output circuit form a feedback control loop to maintain a constant output voltage. A THD optimization function is built in the device so that the entire device is capable of being accurately offset to a designed voltage so as to be used for THD optimization, thereby dispensing with external manual adjustment and overcoming internal technical deviations while achieving high consistency.
摘要翻译：功率因数校正装置，以及由其使用的控制器和总谐波失真（THD）衰减器。功率因数校正装置包括转换器和连接到转换器以获得输入电压的控制器（320）。控制器（320）包括用于自动THD优化的THD衰减器（407）。转换器包括输入电流检测电阻（3R8），电源开关管（3NMOS）和输出电路。输入电流检测电阻（3R8），电源开关管（3NMOS）和输出电路形成反馈控制回路，以保持恒定的输出电压。 THD优化功能内置在设备中，使得整个设备能够精确地偏移到设计电压，以便用于THD优化，从而在实现高一致性的同时省去了外部手动调整和克服内部技术偏差。

2. 发明申请

US20130201731A1 POWER FACTOR CORRECTION DEVICE, AND CONTROLLER AND THD ATTENUATOR USED BY SAME 有权
标题翻译：功率因数校正装置，以及由其使用的控制器和衰减器
公开(公告)号：US20130201731A1
公开(公告)日：2013-08-08
申请号：US13878757
申请日：2011-10-11
申请人： Wenhao Gu , Runqin Tan , Lifang Guo
发明人： Wenhao Gu , Runqin Tan , Lifang Guo
IPC分类号： H02M1/12 , H02M3/335
CPC分类号： H02M1/12 , H02M1/4225 , H02M3/33507 , Y02B70/126 , Y02P80/112
摘要： A power factor correction device, and a controller and a total harmonic distortion (THD) attenuator used by same. The power factor correction device comprises a converter and a controller (320) connected to the converter to obtain an input voltage. The controller (320) comprises a THD attenuator (407) for automatic THD optimization. The converter comprises an input current detection resistor (3R8), a power switch tube (3NMOS) and an output circuit. The input current detection resistor (3R8), the power switch tube (3NMOS) and the output circuit form a feedback control loop to maintain a constant output voltage. A THD optimization function is built in the device so that the entire device is capable of being accurately offset to a designed voltage so as to be used for THD optimization, thereby dispensing with external manual adjustment and overcoming internal technical deviations while achieving high consistency.
摘要翻译：功率因数校正装置，以及由其使用的控制器和总谐波失真（THD）衰减器。功率因数校正装置包括转换器和连接到转换器以获得输入电压的控制器（320）。控制器（320）包括用于自动THD优化的THD衰减器（407）。转换器包括输入电流检测电阻（3R8），电源开关管（3NMOS）和输出电路。输入电流检测电阻（3R8），电源开关管（3NMOS）和输出电路形成反馈控制回路，以保持恒定的输出电压。 THD优化功能内置在设备中，使得整个设备能够精确地偏移到设计电压，以便用于THD优化，从而在实现高一致性的同时省去了外部手动调整和克服内部技术偏差。

3. 外观设计

USD977050S1 Baby float 有权
公开(公告)号：USD977050S1
公开(公告)日：2023-01-31
申请号：US29780488
申请日：2021-04-25
申请人： Lifang Guo
设计人： Lifang Guo

4. 发明授权

US09125270B2 LED dimming device and LED dimming and driving circuit 有权
标题翻译： LED调光装置和LED调光驱动电路
公开(公告)号：US09125270B2
公开(公告)日：2015-09-01
申请号：US13528804
申请日：2012-06-20
申请人： Weiming Liao , Matthew Man Ho Ku , Yue Zheng , Lifang Guo , Guangyao You
发明人： Weiming Liao , Matthew Man Ho Ku , Yue Zheng , Lifang Guo , Guangyao You
IPC分类号： H05B33/08 , H05B37/02 , H05B39/04 , H05B41/36 , G05F1/00
CPC分类号： H05B33/0845
摘要： A LED dimming device, and a LED dimming and a driving circuit using such LED dimming device are discussed. In present embodiment, the LED dimming device multiplexes an inputting switch and/or a sampling module of the LED driving circuit for dimming. such LED dimming device will not affect the sine waves of input current, in such a way, power factor and work efficiency will be increased while the harmonic coefficient and interference signal will be reduced.
摘要翻译：讨论了LED调光装置以及使用这种LED调光装置的LED调光和驱动电路。在本实施例中，LED调光装置多路复用LED驱动电路的输入开关和/或采样模块进行调光。这种LED调光装置不会影响输入电流的正弦波，这样就可以提高功率因数和工作效率，同时降低谐波系数和干扰信号。

5. 发明申请

US20130241424A1 LED DIMMING DEVICE AND LED DIMMING AND DRIVING CIRCUIT 有权
标题翻译： LED调光装置和LED调光和驱动电路
公开(公告)号：US20130241424A1
公开(公告)日：2013-09-19
申请号：US13528804
申请日：2012-06-20
申请人： Weiming Liao , Matthew Man Ho Ku , Yue Zheng , Lifang Guo , Guangyao You
发明人： Weiming Liao , Matthew Man Ho Ku , Yue Zheng , Lifang Guo , Guangyao You
IPC分类号： H05B37/02
CPC分类号： H05B33/0845
摘要： A LED dimming device, and a LED dimming and a driving circuit using such LED dimming device are discussed. In present embodiment, the LED dimming device multiplexes an inputting switch and/or a sampling module of the LED driving circuit for dimming. such LED dimming device will not affect the sine waves of input current, in such a way, power factor and work efficiency will be increased while the harmonic coefficient and interference signal will be reduced.
摘要翻译：讨论了LED调光装置以及使用这种LED调光装置的LED调光和驱动电路。在本实施例中，LED调光装置多路复用LED驱动电路的输入开关和/或采样模块进行调光。这种LED调光装置不会影响输入电流的正弦波，这样就可以提高功率因数和工作效率，同时降低谐波系数和干扰信号。

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