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1. 发明授权

US11626803B2 Adaptive control for zero-voltage switching in a multi-switch switching power converter 有权
公开(公告)号：US11626803B2
公开(公告)日：2023-04-11
申请号：US16735069
申请日：2020-01-06
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Wenduo Liu , Cong Zheng , Xiaoyan Wang , Pengju Kong
IPC分类号： H02M3/335 , H02M1/00 , H02M3/00
摘要： A switching power converter is provided that adaptively changes the on-time period for an auxiliary switch transistor to locate a boundary between sufficient and insufficient energy.

2. 发明授权

US11063510B2 Switching power converter with improved power factor correction via feedback signal averaging 有权
公开(公告)号：US11063510B2
公开(公告)日：2021-07-13
申请号：US16548629
申请日：2019-08-22
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Laiqing Ping , Xiaoyan Wang , Nan Shi
IPC分类号： H02M1/42 , H02M7/217 , H02M1/00 , H02M1/14
摘要： The feedback loop of a switching power converter controller is provided with an averaging circuit that averages either an output voltage, an error signal, or a control voltage. Regardless of which feedback signal is averaged, the averaging occurs over a first cycle of a rectified input voltage to form an averaged signal that is used by the feedback loop in a subsequent cycle of the rectified input voltage.

3. 发明授权

US10770968B1 Switching power converter with adaptive pulse frequency modulation 有权
公开(公告)号：US10770968B1
公开(公告)日：2020-09-08
申请号：US16547345
申请日：2019-08-21
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Laiqing Ping , Nan Shi , Xiaoyan Wang
IPC分类号： H02M1/42 , H02M3/157
摘要： An adaptive pulse frequency modulation for a switching power converter is provided that varies the switching frequency across a cycle of a rectified input voltage for the switching power converter From a beginning of the cycle of the rectified input voltage, the switching frequency decreases from a maximum value to a minimum value at a mid-point of the cycle and then increases from the mid-point back to the maximum value at an end of the cycle.

4. 发明授权

US10333522B2 Selection of multiple configuration settings using a single configuration terminal 有权
公开(公告)号：US10333522B2
公开(公告)日：2019-06-25
申请号：US15826526
申请日：2017-11-29
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Guang Feng , Xiaoyan Wang , Nan Shi
IPC分类号： H03K19/177 , H03K19/0175 , H03K5/1532
摘要： A single configuration terminal of a device is used to configure multiple operating parameters of the device based on a resistor and a capacitor selectively connected to the configuration terminal. The device includes a detection circuit configured to monitor a voltage signal at the configuration terminal to determine multiple values in response to a regulated current source providing a current to the configuration terminal selectively connected to the resistor and the capacitor in parallel, and configure multiple operating parameters based on the determined values. A method for configuring operating parameters using a single configuration terminal of a device includes providing a current to the configuration terminal selectively connected to a resistor and a capacitor in parallel, monitoring a voltage signal at the configuration terminal, determining multiple values based on the monitoring, and configuring multiple operating parameter based on the determined values.

5. 发明授权

US09936547B2 Multi-mode control for solid state lighting 有权
公开(公告)号：US09936547B2
公开(公告)日：2018-04-03
申请号：US15509845
申请日：2015-09-15
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Xiaoyan Wang , Guang Feng , Nan Shi
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H05B33/0806 , H05B33/0809 , H05B33/0818 , H05B33/083 , H05B33/0845 , H05B33/0884 , H05B33/0887 , Y02B20/347
摘要： A multi-mode control scheme for an LED lamp system uses the detected firing angle of an AC input voltage waveform to select from multiple regulation modes. In operation, a current controller compares the detected firing angle to one or more specified thresholds and selects the appropriate regulation scheme based on the comparison result. When the detected firing angle is less than a first firing angle threshold, the controller employs a current shaping regulation mode. When the detected firing angle is greater than a second firing angle threshold, the controller employs a switching cycle-I Peak modulation regulation mode. And when the detected firing angle is greater than the first firing angle threshold and less than the second firing angle threshold, the controller employs a hybrid regulation mode.

6. 发明申请

US20170251532A1 MULTI-MODE CONTROL FOR SOLID STATE LIGHTING 有权
公开(公告)号：US20170251532A1
公开(公告)日：2017-08-31
申请号：US15509845
申请日：2015-09-15
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Xiaoyan Wang , Guang Feng , Nan Shi
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H05B33/0806 , H05B33/0809 , H05B33/0818 , H05B33/083 , H05B33/0845 , H05B33/0884 , H05B33/0887 , Y02B20/347
摘要： A multi-mode control scheme for an LED lamp system uses the detected firing angle of an AC input voltage waveform to select from multiple regulation modes. In operation, a current controller compares the detected firing angle to one or more specified thresholds and selects the appropriate regulation scheme based on the comparison result. When the detected firing angle is less than a first firing angle threshold, the controller employs a current shaping regulation mode. When the detected firing angle is greater than a second firing angle threshold, the controller employs a switching cycle-I_Peak modulation regulation mode. And when the detected firing angle is greater than the first firing angle threshold and less than the second firing angle threshold, the controller employs a hybrid regulation mode.

7. 发明申请

US20150237693A1 High Voltage Converter without Auxiliary Winding 有权
标题翻译：高压变频器无辅助绕组
公开(公告)号：US20150237693A1
公开(公告)日：2015-08-20
申请号：US14613628
申请日：2015-02-04
申请人： Dialog Semiconductor GmbH , Dialog Semiconductor Inc.
发明人： Horst Knoedgen , Xiaoyan Wang , Chuanyang Wang
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H03K17/063 , H05B33/0806 , H05B33/0812 , H05B33/0845 , H05B33/0851 , H05B33/0887
摘要： The present document relates to driver circuits and/or power converters, e.g. for Solid State Lighting (SSL) devices, such as Light Emitting Diodes (LEDs). A controller for a driver circuit which is configured to provide a drive voltage to a load subject to an input voltage is described. The driver circuit comprises a power converter network and a power transistor. The controller comprises a control transistor which is configured to couple or to decouple a low voltage terminal of the power transistor to or from a low voltage potential, to put the power transistor to a conduction-state or an off-state, respectively. Furthermore, the controller comprises a charging transistor, arranged in parallel to the control transistor, and configured to couple or to decouple the low voltage terminal of the power transistor to a supply voltage capacitor, to put the power transistor to the conduction-state or off-state, respectively.
摘要翻译：本文件涉及驱动器电路和/或功率转换器，例如用于固态照明（SSL）设备，如发光二极管（LED）。描述了用于驱动电路的控制器，其被配置为向受到输入电压的负载提供驱动电压。驱动器电路包括功率转换器网络和功率晶体管。控制器包括控制晶体管，其被配置为将功率晶体管的低电压端子耦合到或从低电压电位解耦，以将功率晶体管分别置于导通状态或截止状态。此外，控制器包括与控制晶体管并联布置的充电晶体管，并且被配置为将功率晶体管的低电压端子耦合到电源电压电容器，以将功率晶体管置于导通状态或关断状态状态。

8. 发明授权

US10461646B2 Hybrid secondary-side regulation 有权
公开(公告)号：US10461646B2
公开(公告)日：2019-10-29
申请号：US16100934
申请日：2018-08-10
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Yong Li , Cong Zheng , Xiaoyan Wang , Wenduo Liu
IPC分类号： H02M3/335 , H02M1/32 , H02M1/36 , H02J7/00 , H02M1/00
摘要： A flyback converter control architecture is provided in which primary-only feedback techniques are used to ensure smooth startup and detection of fault conditions. During steady-state operation, secondary-side regulation is employed. In addition, current limits are monitored during steady-state operation using primary-only feedback techniques to obviate the need for a secondary-side current sense resistor.

9. 发明申请

US20180083636A1 SELECTION OF MULTIPLE CONFIGURATION SETTINGS USING A SINGLE CONFIGURATION TERMINAL 审中-公开
公开(公告)号：US20180083636A1
公开(公告)日：2018-03-22
申请号：US15826526
申请日：2017-11-29
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Guang Feng , Xiaoyan Wang , Nan Shi
IPC分类号： H03K19/177 , H03K5/1532
CPC分类号： H03K19/17796 , H03K5/1532 , H03K19/0175 , H03K19/17764
摘要： A single configuration terminal of a device is used to configure multiple operating parameters of the device based on a resistor and a capacitor selectively connected to the configuration terminal. The device includes a detection circuit configured to monitor a voltage signal at the configuration terminal to determine multiple values in response to a regulated current source providing a current to the configuration terminal selectively connected to the resistor and the capacitor in parallel, and configure multiple operating parameters based on the determined values. A method for configuring operating parameters using a single configuration terminal of a device includes providing a current to the configuration terminal selectively connected to a resistor and a capacitor in parallel, monitoring a voltage signal at the configuration terminal, determining multiple values based on the monitoring, and configuring multiple operating parameter based on the determined values.

10. 发明授权

US09629207B2 Solid state lamp control 有权
公开(公告)号：US09629207B2
公开(公告)日：2017-04-18
申请号：US14486195
申请日：2014-09-15
申请人： Dialog Semiconductor Inc.
发明人： Clarita Knoll , Xiaoyan Wang , Nan Shi , Guang Feng , Haiju Li
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , Y02B20/346
摘要： Intelligent control of a solid state lamp when coupled to a trailing edge phase cut dimmer switch is provided. On and off cycles of the lamp's power stage switch are enabled during a period when the energy in the bulk capacitor is at its highest levels. During this period a bleeder circuit does not have to be enabled, which results in a greater operational efficiency as compared with normal switching schemes for trailing edge dimmers.

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