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1. 发明授权

US10554121B2 Thermal de-rating for a multi-mode switching power converter 有权
公开(公告)号：US10554121B2
公开(公告)日：2020-02-04
申请号：US16421091
申请日：2019-05-23
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Yong Li , Scott Brown , Mengfei Liu , Yimin Chen
IPC分类号： H02J7/00 , H02M1/32 , H02M3/335 , H02M1/08
摘要： A switching power converter is disclosed that communicates a thermal alarm to a mobile device over a data channel in a data cable for charging the mobile device.

2. 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.

3. 发明授权

US09647560B2 Secondary-side dynamic load detection and communication device 有权
公开(公告)号：US09647560B2
公开(公告)日：2017-05-09
申请号：US14340482
申请日：2014-07-24
申请人： Dialog Semiconductor Inc.
发明人： Pengju Kong , Yong Li
IPC分类号： H02M3/335 , H02M1/00
CPC分类号： H02M3/33507 , H02M1/08 , H02M3/33592 , H02M2001/0009 , H02M2001/0032 , Y02B70/16
摘要： A switching power converter provides regulated voltage to a load. The switching power converter comprises a transformer including a primary winding coupled to an input voltage and a secondary winding coupled to an output of the switching power converter. The switching power converter further comprises a power switch coupled to the primary winding and a rectifier coupled to the secondary winding. Current is generated in the primary winding responsive to the power switch being turned on and not generated responsive to the power switch being turned off. A detection circuit measures a voltage across the rectifier. If the detection circuit detects a decrease in the voltage across the rectifier outside of a blanking period, the detection circuit generates a current pulse in the secondary winding of the transformer.

4. 发明授权

US09531275B2 Precise output power detection 有权
标题翻译：精确的输出功率检测
公开(公告)号：US09531275B2
公开(公告)日：2016-12-27
申请号：US14307317
申请日：2014-06-17
申请人： Dialog Semiconductor Inc.
发明人： Fuqiang Shi , David Nguyen , Hien Huu Bui , Yong Li , Jianming Yao
IPC分类号： H02M3/335 , H02M1/00
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： A switching power converter provides regulated output power to a load. The switching power converter comprises a transformer including a primary winding coupled to an input voltage, a secondary winding coupled to an output of the switching power converter, an auxiliary winding on a primary side of the transformer, and a switch coupled to the primary winding of the transformer. Output voltage across the secondary winding is reflected as a feedback voltage across the auxiliary winding. The switching power converter detects output current based on a reset time of the transformer. Based on the detected output power, the switching power converter controls switching of the switch to provide regulated output power.
摘要翻译：开关电源转换器为负载提供稳压输出功率。所述开关功率转换器包括变压器，所述变压器包括耦合到输入电压的初级绕组，耦合到所述开关功率转换器的输出的次级绕组，在所述变压器的初级侧的辅助绕组，以及耦合到所述初级绕组的开关变压器。次级绕组两端的输出电压反映为辅助绕组上的反馈电压。开关电源转换器根据变压器的复位时间来检测输出电流。基于检测到的输出功率，开关电源转换器控制开关的开关以提供稳定的输出功率。

5. 发明申请

US20150333638A1 CONFIGURABLE POWER CONTROLLER WITH COMBINATION INPUT 有权
标题翻译：具有组合输入的可配置功率控制器
公开(公告)号：US20150333638A1
公开(公告)日：2015-11-19
申请号：US14810650
申请日：2015-07-28
申请人： Dialog Semiconductor Inc.
发明人： Xiaolin Gao , Qiu Sha , Fuqiang Shi , Yong Li
IPC分类号： H02M3/335
CPC分类号： H02M3/33507
摘要： Embodiments described herein describe a power supply configured to provide power to an output load via a power supply transformer. The power supply includes a controller configured to operate in a configuration state and an operating state. During the configuration state, the controller receives a configuration signal from a sense circuit coupled to the controller and selects one of a plurality of operating modes from the configuration signal. During the operating state, the controller controls a switch coupled to the transformer based on the selected operating mode and a sense signal received from the sense circuit representative of the power provided to the output load by the power supply. When the switch is closed, current flows from a power source through the transformer, and when the switch is open, current is prevented from flowing from the power source through the transformer.
摘要翻译：本文描述的实施例描述了被配置为经由电源变压器向输出负载提供电力的电源。电源包括被配置为在配置状态和操作状态下操作的控制器。在配置状态期间，控制器从耦合到控制器的感测电路接收配置信号，并从配置信号中选择多个操作模式之一。在操作状态期间，控制器基于所选择的操作模式控制耦合到变压器的开关，以及从感测电路接收的表示由电源提供给输出负载的功率的感测信号。当开关闭合时，电流通过变压器从电源流出，当开关断开时，防止电流从电源通过变压器流出。

6. 发明授权

US10983152B2 USB data pin impedance detection 有权
公开(公告)号：US10983152B2
公开(公告)日：2021-04-20
申请号：US16735582
申请日：2020-01-06
申请人： DIALOG SEMICONDUCTOR INC. , DIALOG INTEGRATED CIRCUITS (TIANJIN) LIMITED
发明人： Fuqiang Shi , Jianming Yao , Weihai Huang , Yong Li , John William Kesterson
IPC分类号： G01R27/14 , G01R31/50 , G01R31/68 , G01R31/66
摘要： A device for determining impedance at a data pin of a communication interface. In one embodiment, the device includes a current source configured to selectively inject a test current to the data pin. The device also includes a sensing circuit for sensing a first test voltage corresponding to a voltage at the data pin without the test current injected, and a second test voltage corresponding to another voltage at the data pin with the test current injected. The sensing circuit determines the impedance at the data pin based on the first test voltage and the second test voltage.

7. 发明授权

US10243468B2 Secondary-side dynamic load detection and communication device 有权
公开(公告)号：US10243468B2
公开(公告)日：2019-03-26
申请号：US15478676
申请日：2017-04-04
申请人： Dialog Semiconductor Inc.
发明人： Pengju Kong , Yong Li
IPC分类号： H02M3/335 , H02M1/08 , H02M1/00
摘要： A switching power converter provides regulated voltage to a load. The switching power converter comprises a transformer including a primary winding coupled to an input voltage and a secondary winding coupled to an output of the switching power converter. The switching power converter further comprises a power switch coupled to the primary winding and a rectifier coupled to the secondary winding. Current is generated in the primary winding responsive to the power switch being turned on and not generated responsive to the power switch being turned off. A detection circuit measures a voltage across the rectifier. If the detection circuit detects a decrease in the voltage across the rectifier outside of a blanking period, the detection circuit generates a current pulse in the secondary winding of the transformer.

8. 发明申请

US20180013300A1 SHORT CIRCUIT PROTECTION FOR DATA INTERFACE CHARGING 审中-公开
公开(公告)号：US20180013300A1
公开(公告)日：2018-01-11
申请号：US15709408
申请日：2017-09-19
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Jianming Yao , Yong Li , Dickson Wong
IPC分类号： H02J7/00 , H02J7/04 , H02M3/335
摘要： A switching power converter is provided with an overvoltage protection circuit that monitors the differential data signal voltages in a data interface such as a USB data interface powering a load device to detect soft short conditions.

9. 发明申请

US20170214329A1 Smart Grouping Control Method for Power Converter Switching Noise Management 有权
公开(公告)号：US20170214329A1
公开(公告)日：2017-07-27
申请号：US15414597
申请日：2017-01-24
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Fuqiang Shi , Kai-Wen Chin , Cong Zheng , Jianming Yao , Yong Li
IPC分类号： H02M3/335 , H02M1/44 , H02M1/08
CPC分类号： H02M3/33515 , H02M1/08 , H02M1/44 , H02M3/33507 , H02M2001/0009
摘要： A switching power converter is provided that cycles a power switch during a group pulse mode of operation to produce a train of pulses within a group period responsive to a control voltage being within a group mode control voltage range.

10. 发明授权

US09525352B2 Magnitude adjustment of the drive signal of a switching transistor of a switching power converter 有权
标题翻译：开关电源转换器的开关晶体管的驱动信号的幅度调整
公开(公告)号：US09525352B2
公开(公告)日：2016-12-20
申请号：US13920914
申请日：2013-06-18
申请人： Dialog Semiconductor Inc.
发明人： Junjie Zheng , Jun Zheng , Andrew Kwok-Cheung Lee , John William Kesterson , Allan Ming-Lun Lin , Hien Huu Bui , Carrie Seim , Yong Li
IPC分类号： H02M3/335 , H03K17/16 , H02M1/00
CPC分类号： H02M3/33507 , H02M2001/0032 , H03K17/163 , H03K17/166 , Y02B70/16
摘要： The drive current of the switch in a switching power converter is adjusted dynamically according to line or load conditions within a switching cycle and/or over a plurality of switching cycles. The magnitude of the switch drive current can be dynamically adjusted within a switching cycle and/or over a plurality of switching cycles, in addition to the pulse widths or pulse frequencies of the switch drive current.
摘要翻译：开关电源转换器中的开关的驱动电流根据开关周期内和/或多个开关周期中的线路或负载条件动态地调整。除了开关驱动电流的脉冲宽度或脉冲频率之外，开关驱动电流的大小可以在开关周期内和/或多个开关周期内动态地调节。

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