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1. 发明申请

US20160081152A1 GENERATING A VOLTAGE FEEDBACK SIGNAL IN NON-ISOLATED LED DRIVERS 有权
标题翻译：在非隔离LED驱动器中产生电压反馈信号
公开(公告)号：US20160081152A1
公开(公告)日：2016-03-17
申请号：US14486878
申请日：2014-09-15
申请人： Dialog Semiconductor Inc.
发明人： Chenglong Zhang , John William Kesterson , Chin Li , Ping Lo , Chuanyang Wang
IPC分类号： H05B33/08
CPC分类号： H05B33/0845 , H05B33/0815 , H05B33/0851 , H05B33/089
摘要： An LED lamp comprises one or more LEDs, an inductive element coupled to an input voltage source and the one or more LEDs, and a switch coupled to the inductive element. A first current detector is coupled between the input voltage source and a ground node of the LED lamp, such that a current detected by the first current detector is proportional to a bulk voltage across the input voltage source. A second current detector is coupled between the inductive element and the ground node, such that current detected by the second current detector is proportional to a drain voltage across the switch. A switch controller controls the switch based on a feedback signal indicative of a voltage across the inductive element, which is generated based on a difference between the current detected by the second current detector and the current detected by the first current detector.
摘要翻译： LED灯包括一个或多个LED，耦合到输入电压源的电感元件和一个或多个LED以及耦合到电感元件的开关。第一电流检测器耦合在输入电压源和LED灯的接地节点之间，使得由第一电流检测器检测的电流与输入电压源两端的体电压成比例。第二电流检测器耦合在电感元件和接地节点之间，使得由第二电流检测器检测的电流与开关两端的漏极电压成比例。开关控制器基于表示基于由第二电流检测器检测的电流与由第一电流检测器检测的电流之间的差产生的表示电感元件两端的电压的反馈信号来控制开关。

2. 发明授权

US10237931B2 Regulated power supply voltage and triac hold-up current for a switching power converter 有权
公开(公告)号：US10237931B2
公开(公告)日：2019-03-19
申请号：US15948713
申请日：2018-04-09
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Chenglong Zhang
IPC分类号： H02M1/00 , H05B33/08 , H02M3/156
摘要： A switching power converter is provided that includes a current source that controls the charging of a storage capacitor to provide a regulated internal power supply voltage.

3. 发明授权

US09288864B2 Adaptive holding current control for LED dimmer 有权
标题翻译：适用于LED调光器的保持电流控制
公开(公告)号：US09288864B2
公开(公告)日：2016-03-15
申请号：US14099986
申请日：2013-12-08
申请人： Dialog Semiconductor Inc.
发明人： Xiaoyan Wang , Chenglong Zhang , Guang Feng , Clarita Knoll , Chuanyang Wang , Jiang Chen , Liang Yan , Dickson T. Wong
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0848 , H05B33/0845
摘要： A TRIAC dimmer controller for an LED lamp dynamically adjusts the amount of additional current supplied to the TRIAC dimmer based on the TRIAC dimmer operating mode. A TRIAC dimmer current controller continually senses the TRIAC dimmer current loading and determines a TRIAC dimmer operating mode based on the detected current. The TRIAC dimmer controller compares the detected current with a threshold current value called a TRIAC holding current, and adjusts the amount of bleeder current based on the difference between the detected current and the threshold current value. By continually sensing the TRIAC dimmer current loading, the LED controller regulates the amount of bleeder current supplied to the TRIAC dimmer using a single sink current path to satisfy the TRIAC dimmer current demands of multiple TRIAC dimmer operating modes.
摘要翻译：用于LED灯的TRIAC调光器控制器基于TRIAC调光器操作模式动态调节提供给TRIAC调光器的附加电流量。 TRIAC调光器电流控制器连续感测TRIAC调光器电流负载，并根据检测到的电流确定TRIAC调光器工作模式。 TRIAC调光器控制器将检测到的电流与称为TRIAC保持电流的阈值电流进行比较，并根据检测到的电流和阈值电流值之间的差值调整泄放电流的数量。通过连续感测TRIAC调光器电流负载，LED控制器使用单个灌电流通路来调节提供给TRIAC调光器的泄放电流量，以满足多个TRIAC调光器工作模式的TRIAC调光器电流要求。

4. 发明申请

US20180227993A1 REGULATED POWER SUPPLY VOLTAGE AND TRIAC HOLD-UP CURRENT FOR A SWITCHING POWER CONVERTER 审中-公开
公开(公告)号：US20180227993A1
公开(公告)日：2018-08-09
申请号：US15948713
申请日：2018-04-09
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Chenglong Zhang
IPC分类号： H05B33/08 , H02M3/156
CPC分类号： H05B33/0815 , H02M3/156 , H02M2001/0006 , H02M2001/0009 , H05B33/0845 , Y02B20/347
摘要： A switching power converter is provided that includes a current source that controls the charging of a storage capacitor to provide a regulated internal power supply voltage.

5. 发明授权

US10129939B1 High efficiency flicker attenuator for lighting 有权
公开(公告)号：US10129939B1
公开(公告)日：2018-11-13
申请号：US15645845
申请日：2017-07-10
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Chenglong Zhang , Nan Shi
IPC分类号： H05B33/08 , H05B37/02
摘要： Systems, devices, and methods for dimming of solid state lighting reduce ripple and flicker at low load dimming levels (low LED current, lower light levels) yet provide full power to the load at high load dimming levels (high LED current, higher light levels) thereby reducing power loss compared to conventional dimming techniques. When dimming to lower light levels a flicker resisting metal oxide semiconductor field effect transistor (MOSFET) connected to the LED operates in linear mode such that the relationship of its drain-source voltage to the LED current is resistive to provide flicker reduction. Conversely, at higher light levels the flicker resisting MOSFET is operated in saturation mode such that full power is supplied to the LED as flicker reduction is less needed. The disclosed techniques also reduce undershoot and overshoot of the LED voltage during transitions in dimming control from high to low and low to high respectively.

6. 发明授权

US09877367B2 Powering internal components of LED lamps using dissipative sources 有权
公开(公告)号：US09877367B2
公开(公告)日：2018-01-23
申请号：US15497632
申请日：2017-04-26
申请人： Dialog Semiconductor Inc.
发明人： Chuanyang Wang , Chenglong Zhang , Nan Shi , Clarita C. Knoll , Guang Feng
IPC分类号： H05B33/08
CPC分类号： H05B33/0845 , H05B33/0815 , H05B33/0851 , Y02B20/347
摘要： An LED lamp comprises one or more LEDs and an LED driver receiving an input signal from a dimmer switch indicative of an amount of dimming for the LED lamp. The LED driver controls regulated current through the one or more LEDs based on the input signal such that an output light intensity of the one or more LEDs substantially corresponds to the amount of dimming for the LED lamp. A regulated output provides operating power for the LED driver. A controller regulates the regulated output to power the LED driver. The controller selects a power source for charging the regulated output from two or more power sources, and the regulated output is charged using the power source selected by the controller.

7. 发明申请

US20170231050A1 POWERING INTERNAL COMPONENTS OF LED LAMPS USING DISSIPATIVE SOURCES 有权
公开(公告)号：US20170231050A1
公开(公告)日：2017-08-10
申请号：US15497632
申请日：2017-04-26
申请人： Dialog Semiconductor Inc.
发明人： Chuanyang Wang , Chenglong Zhang , Nan Shi , Clarita C. Knoll , Guang Feng
IPC分类号： H05B33/08
CPC分类号： H05B33/0845 , H05B33/0815 , H05B33/0851 , Y02B20/347
摘要： An LED lamp comprises one or more LEDs and an LED driver receiving an input signal from a dimmer switch indicative of an amount of dimming for the LED lamp. The LED driver controls regulated current through the one or more LEDs based on the input signal such that an output light intensity of the one or more LEDs substantially corresponds to the amount of dimming for the LED lamp. A regulated output provides operating power for the LED driver. A controller regulates the regulated output to power the LED driver. The controller selects a power source for charging the regulated output from two or more power sources, and the regulated output is charged using the power source selected by the controller.

8. 发明授权

US09686834B2 Powering internal components of LED lamps using dissipative sources 有权
公开(公告)号：US09686834B2
公开(公告)日：2017-06-20
申请号：US14486884
申请日：2014-09-15
申请人： Dialog Semiconductor Inc.
发明人： Chuanyang Wang , Chenglong Zhang , Nan Shi , Clarita Knoll , Guang Feng
IPC分类号： H05B33/08
CPC分类号： H05B33/0845 , H05B33/0815 , H05B33/0851 , Y02B20/347
摘要： An LED lamp comprises one or more LEDs and an LED driver receiving an input signal from a dimmer switch indicative of an amount of dimming for the LED lamp. The LED driver controls regulated current through the one or more LEDs based on the input signal such that an output light intensity of the one or more LEDs substantially corresponds to the amount of dimming for the LED lamp. A regulated output provides operating power for the LED driver. A controller regulates the regulated output to power the LED driver. The controller selects a power source for charging the regulated output from two or more power sources, and the regulated output is charged using the power source selected by the controller.

9. 发明授权

US09380670B2 Generating a voltage feedback signal in non-isolated LED drivers 有权
标题翻译：在非隔离LED驱动器中产生电压反馈信号
公开(公告)号：US09380670B2
公开(公告)日：2016-06-28
申请号：US14486878
申请日：2014-09-15
申请人： Dialog Semiconductor Inc.
发明人： Chenglong Zhang , John William Kesterson , Chin Li , Ping Lo , Chuanyang Wang
IPC分类号： H05B33/08
CPC分类号： H05B33/0845 , H05B33/0815 , H05B33/0851 , H05B33/089
摘要： An LED lamp comprises one or more LEDs, an inductive element coupled to an input voltage source and the one or more LEDs, and a switch coupled to the inductive element. A first current detector is coupled between the input voltage source and a ground node of the LED lamp, such that a current detected by the first current detector is proportional to a bulk voltage across the input voltage source. A second current detector is coupled between the inductive element and the ground node, such that current detected by the second current detector is proportional to a drain voltage across the switch. A switch controller controls the switch based on a feedback signal indicative of a voltage across the inductive element, which is generated based on a difference between the current detected by the second current detector and the current detected by the first current detector.
摘要翻译： LED灯包括一个或多个LED，耦合到输入电压源的电感元件和一个或多个LED以及耦合到电感元件的开关。第一电流检测器耦合在输入电压源和LED灯的接地节点之间，使得由第一电流检测器检测的电流与输入电压源两端的体电压成比例。第二电流检测器耦合在电感元件和接地节点之间，使得由第二电流检测器检测的电流与开关两端的漏极电压成比例。开关控制器基于表示基于由第二电流检测器检测的电流与由第一电流检测器检测的电流之间的差产生的表示电感元件两端的电压的反馈信号来控制开关。

10. 发明申请

US20160081153A1 POWERING INTERNAL COMPONENTS OF LED LAMPS USING DISSIPATIVE SOURCES 有权
标题翻译：使用散热源为LED灯的内部组件供电
公开(公告)号：US20160081153A1
公开(公告)日：2016-03-17
申请号：US14486884
申请日：2014-09-15
申请人： Dialog Semiconductor Inc.
发明人： Chuanyang Wang , Chenglong Zhang , Nan Shi , Clarita Poon , Guang Feng
IPC分类号： H05B33/08
CPC分类号： H05B33/0845 , H05B33/0815 , H05B33/0851 , Y02B20/347
摘要： An LED lamp comprises one or more LEDs and an LED driver receiving an input signal from a dimmer switch indicative of an amount of dimming for the LED lamp. The LED driver controls regulated current through the one or more LEDs based on the input signal such that an output light intensity of the one or more LEDs substantially corresponds to the amount of dimming for the LED lamp. A regulated output provides operating power for the LED driver. A controller regulates the regulated output to power the LED driver. The controller selects a power source for charging the regulated output from two or more power sources, and the regulated output is charged using the power source selected by the controller.
摘要翻译： LED灯包括一个或多个LED和LED驱动器，其接收来自指示LED灯的调光量的来自调光器开关的输入信号。 LED驱动器基于输入信号控制通过一个或多个LED的调节电流，使得一个或多个LED的输出光强度基本上对应于LED灯的调光量。调节输出为LED驱动器提供工作电源。控制器调节调节输出以为LED驱动器供电。控制器选择用于从两个或更多个电源对调节输出进行充电的电源，并且使用由控制器选择的电源对稳压输出进行充电。

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