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11. 发明申请

WO2017035394A1 ADAPTIVE SYNCHRONOUS RECTIFIER CONTROL 审中-公开
标题翻译：自适应同步整流器控制
公开(公告)号：WO2017035394A1
公开(公告)日：2017-03-02
申请号：PCT/US2016/048770
申请日：2016-08-25
申请人： DIALOG SEMICONDUCTOR INC.
发明人： KONG, Pengju , LIANG, Wenbo
IPC分类号： H02M3/335 , H02M1/32 , G01R31/40
CPC分类号： H02M3/33592 , H02M1/32 , H02M2001/325 , Y02B70/1475
摘要： A switching power converter may include a power switch coupled to a primary winding of a transformer, and a primary controller configured to turn on and off the power switch, a synchronous rectifier switch coupled to a secondary winding of a transformer, and a synchronous rectifier controller configured to turn on and off the synchronous rectifier switch. The synchronous rectifier controller may monitor a voltage across the synchronous rectifier switch. The synchronous rectifier controller may detect a fault condition responsive to the voltage reaching a turn-off voltage threshold before a minimum on-time timer expires. The synchronous rectifier controller may detect a fault condition responsive to the synchronous rectifier switch being turned off at the same time, immediately after, or within a timing guardband after the minimum on-time timer expires. The synchronous rectifier controller may adaptively increase a minimum off-time period for the synchronous rectifier switch.
摘要翻译：开关功率转换器可以包括耦合到变压器的初级绕组的功率开关和被配置为接通和关断功率开关的主控制器，耦合到变压器的次级绕组的同步整流器开关和同步整流器控制器配置为打开和关闭同步整流器开关。同步整流器控制器可以监控同步整流器开关上的电压。同步整流器控制器可以在最小接通时间定时器期满之前响应于达到关断电压阈值的电压来检测故障状况。同步整流器控制器可以在最小接通时间定时器到期之后立即在或之后的定时保护带中同时关闭同步整流器开关，来检测故障状态。同步整流器控制器可以自适应地增加同步整流器开关的最小关断时间段。

12. 发明申请

WO2016164086A9 AUXILIARY WINDING GROUND FAULT DETECTION FOR ISOLATED DC/DC CONVERTER 审中-公开
标题翻译：用于隔离DC / DC转换器的辅助绕组接地故障检测
公开(公告)号：WO2016164086A9
公开(公告)日：2017-03-02
申请号：PCT/US2015067166
申请日：2015-12-21
申请人： DIALOG SEMICONDUCTOR INC
发明人： KONG PENGJU , DOAN DUC , SHI FUQIANG
IPC分类号： H02M1/32 , G01R31/40 , H02M3/335
CPC分类号： H02M3/33523 , H02M1/08 , H02M1/32 , H02M2001/0003
摘要： A flyback converter (100) is provided with a controller (Ul) that is configured to analyze the reflected feedback voltage waveforms (V FB) to determine the presence of a ground connection fault (125) for the auxiliary winding.
摘要翻译：反激转换器（100）设置有控制器（U1），其被配置为分析反射反馈电压波形（V FB）以确定辅助绕组的接地连接故障（125）的存在。

13. 发明申请

WO2015184337A1 ADAPTIVE CABLE DROP COMPENSATION 审中-公开
标题翻译：自适应线缆补偿
公开(公告)号：WO2015184337A1
公开(公告)日：2015-12-03
申请号：PCT/US2015/033304
申请日：2015-05-29
申请人： DIALOG SEMICONDUCTOR INC.
发明人： YAO, Jianming , BUI, Hien, Huu , NGUYEN, David
IPC分类号： G08C19/02
CPC分类号： H02M3/33507 , G06F1/26 , H02J1/04 , H02M3/335 , H02M3/33515 , H02M3/33523 , H04L12/6418
摘要： A power supply control system delivers regulated power to a load via a delivery cable. The power supply control system includes a power stage operable to deliver power to the load at a first regulated voltage level and a second regulated voltage level. A cable offset voltage unit generates an offset voltage signal representing a drop in voltage across the delivery cable. The offset voltage signal is generated based on a first cable drop compensation value when the power stage is operated to deliver power at the first regulated voltage level and based on a second cable drop compensation value when the power stage is operated to deliver power at the second regulated voltage level. A controller coupled to the power stage and the cable offset voltage unit controls the power stage to deliver the regulated power to the load based at least in part on the offset voltage signal.
摘要翻译：电源控制系统通过输送电缆向负载提供稳压电力。电源控制系统包括功率级，功率级可操作以在第一调节电压电平和第二调节电压电平下向负载输送功率。电缆偏移电压单元产生表示输送电缆两端的电压下降的偏移电压信号。当功率级被操作以在第一调节电压电平下传送功率并且当功率级被操作以在第二调节电压下传送功率时，基于第二电缆降落补偿值，基于第一电缆降落补偿值产生偏移电压信号稳压电平。耦合到功率级和电缆偏移电压单元的控制器至少部分地基于偏移电压信号来控制功率级以将调节功率传递到负载。

14. 发明申请

WO2015066221A1 POWER CONVERTER WITH DYNAMIC PRELOAD 审中-公开
标题翻译：动力转换器与动态PRELOAD
公开(公告)号：WO2015066221A1
公开(公告)日：2015-05-07
申请号：PCT/US2014/062975
申请日：2014-10-29
申请人： DIALOG SEMICONDUCTOR INC.
发明人： YAO, Jianming , CHEN, Yimin , WONG, Dickson, T. , LI, Yong
IPC分类号： H02M1/08 , H02M7/04 , H02M7/217
CPC分类号： H02M3/33507 , H02M1/08 , H02M2001/0009 , H02M2001/0025 , H02M2001/0032 , Y02B70/16
摘要： A power converter with a dynamic preload. The power converter includes a magnetic component coupled between an input and an output of the power converter. The output of the power converter has an output voltage for providing power to a load. A switch is adapted to control current through the magnetic component according to on and off times of the switch. A dynamic preload circuit is coupled to the output of the power converter. The dynamic preload has loading characteristics that are adjusted responsive to a signal indicative of an output voltage at the output of the power converter.
摘要翻译：具有动态预载的电源转换器。功率转换器包括耦合在功率转换器的输入端和输出端之间的磁性部件。功率转换器的输出具有用于向负载提供电力的输出电压。开关适于根据开关的断开时间控制通过磁性部件的电流。动态预加载电路耦合到功率转换器的输出端。动态预载具有负载特性，其响应于指示功率转换器的输出端的输出电压的信号来调整。

15. 发明申请

WO2014204871A1 LED DRIVER WITH COMPREHENSIVE FAULT PROTECTIONS 审中-公开
标题翻译： LED驱动器具有全面的故障保护
公开(公告)号：WO2014204871A1
公开(公告)日：2014-12-24
申请号：PCT/US2014/042591
申请日：2014-06-16
申请人： DIALOG SEMICONDUCTOR INC.
发明人： LIANG, Enzhu , WANG, Yuwen , GU, Ming
IPC分类号： H05B37/03
CPC分类号： H05B33/089 , G01R31/44 , Y02B20/341
摘要： The embodiments disclosed herein describe a set of fault detection circuits for LED circuits in an LED channel. A first fault detection circuit is configured to detect a short fault across one or more LEDs. A second fault detection circuit is configured to detect an open fault across an LED. A third fault detection circuit is configured to detect a short across an LED channel transistor. A fourth fault detection circuit is configured to detect an LED channel sense resistor open fault. A fifth fault detection circuit is configured to detect if the LED channel is being intentionally unused. These fault detect circuits can be implemented in a fault detection integrated circuit coupled to the LED channel.
摘要翻译：本文公开的实施例描述了LED通道中的LED电路的一组故障检测电路。第一故障检测电路被配置为检测跨越一个或多个LED的短路故障。第二故障检测电路被配置为检测穿过LED的开路故障。第三故障检测电路被配置为检测跨越LED通道晶体管的短路。第四个故障检测电路被配置为检测LED通道检测电阻器的开路故障。第五故障检测电路被配置为检测LED通道是否被有意使用。这些故障检测电路可以在耦合到LED通道的故障检测集成电路中实现。

16. 发明申请

WO2014134214A1 OUTPUT CURRENT COMPENSATION FOR JITTER IN INPUT VOLTAGE FOR DIMMABLE LED LAMPS 审中-公开
标题翻译：用于二极管LED输入输入电压的输出电流补偿
公开(公告)号：WO2014134214A1
公开(公告)日：2014-09-04
申请号：PCT/US2014/018778
申请日：2014-02-26
申请人： DIALOG SEMICONDUCTOR INC.
发明人： WANG, Xiaoyan , YAN, Liang , SHI, Nan
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , H05B33/0854 , Y02B20/347
摘要： An LED controller reduces jitter of an LED lamp. In one embodiment, the LED controller includes a jitter detection circuit adapted to determine an amount of jitter in an input voltage signal. The input voltage signal includes a plurality of cycles and indicates an amount of dimming for the LED lamp. The LED controller further includes a jitter compensation circuit, which generates a control signal to control regulated in the LED lamp such that an output light intensity of the LED lamp substantially corresponds to the amount of dimming for the LED lamp. The control signal controls current delivery to the LED lamp to compensate for the determined amount of jitter in the input voltage signal.
摘要翻译： LED控制器可减少LED灯的抖动。在一个实施例中，LED控制器包括适于确定输入电压信号中的抖动量的抖动检测电路。输入电压信号包括多个周期，并指示LED灯的调光量。 LED控制器还包括抖动补偿电路，其产生控制在LED灯中调节的控制信号，使得LED灯的输出光强度基本上对应于LED灯的调光量。控制信号控制到LED灯的电流传输，以补偿确定的输入电压信号中的抖动量。

17. 发明申请

WO2020264189A1 FLYBACK CONVERTER INPUT VOLTAGE DETECTION 审中-公开
公开(公告)号：WO2020264189A1
公开(公告)日：2020-12-30
申请号：PCT/US2020/039661
申请日：2020-06-25
申请人： DIALOG SEMICONDUCTOR INC.
发明人： YAO, Jianming , LIU, Mengfei , LIU, Wenduo
IPC分类号： H02M3/335 , H02M7/12 , H02M1/00
摘要： A flyback converter is disclosed that times a detection time for each cycle of a power switch transistor. The detection time ends when a sense resistor voltage exceeds a threshold voltage. Over a half cycle of an AC input voltage to the flyback converter measures a series of detection time and determines a minimum detection time from the series of detection times. If the minimum detection time exceeds a brownout delay, a brownout condition exists. If the minimum detection time is less than an overvoltage delay, an overvoltage condition exists.

18. 发明申请

WO2020264050A1 FLYBACK CONVERTER WITH IMPROVED DYNAMIC LOAD RESPONSE 审中-公开
公开(公告)号：WO2020264050A1
公开(公告)日：2020-12-30
申请号：PCT/US2020/039456
申请日：2020-06-24
申请人： DIALOG SEMICONDUCTOR INC.
发明人： KONG, Pengju , LI, Tao , YOON, Juyoung
IPC分类号： H02M3/335 , H02M1/00
摘要： A secondary-side control loop for a flyback converter is provided that generates a secondary-side control signal during normal operation using a compensator. In periods of significant load changes, the compensator is bypassed so that the secondary-side control signal is generated as an open-loop signal.

19. 发明申请

WO2018132761A1 HYBRID SECONDARY-SIDE REGULATION 审中-公开
公开(公告)号：WO2018132761A1
公开(公告)日：2018-07-19
申请号：PCT/US2018/013655
申请日：2018-01-12
申请人： DIALOG SEMICONDUCTOR INC.
发明人： LI, Yong , ZHENG, Cong , WANG, Xiaoyan , LIU, Wenduo
IPC分类号： H02M3/28 , H02M3/335 , H02J7/00 , H02M3/00 , H02M3/325
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.

20. 发明申请

WO2017074305A1 ADAPTIVE VALLEY MODE SWITCHING 审中-公开
标题翻译：自适应谷值模式切换
公开(公告)号：WO2017074305A1
公开(公告)日：2017-05-04
申请号：PCT/US2015/057428
申请日：2015-10-26
申请人： DIALOG SEMICONDUCTOR INC.
发明人： KONG, Pengju , BUI, Hien , DOAN, Duc , ZHENG, Cong
IPC分类号： H02M1/44 , H02M3/335 , H02M3/156
CPC分类号： H02M3/1582 , H02M1/44 , H02M3/156 , H02M3/335 , H02M3/33523 , Y02B70/1425 , Y02B70/1433
摘要： An adaptive valley mode switching power converter is provided that switches on a power switch within valley periods of a resonant voltage oscillation for the power switch. Each valley period is determined with regard to a valley threshold voltage.
摘要翻译：提供自适应谷底模式开关功率转换器，其在功率开关的谐振电压振荡的谷时段内接通功率开关。每个谷期是根据谷值阈值电压确定的。

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