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1. 发明授权

US11621646B2 Adaptive gate regulation for a synchronous rectifier flyback converter 有权
公开(公告)号：US11621646B2
公开(公告)日：2023-04-04
申请号：US17151028
申请日：2021-01-15
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Qingqing Zong , Yimin Chen , Mengfei Liu , Pengju Kong
IPC分类号： H02M3/335 , H02M1/00
摘要： A flyback converter is provided that dynamically adjusts a drain threshold voltage for a current cycle of a synchronous rectifier switch transistor based upon operating conditions in a previous cycle of the synchronous rectifier switch transistor. A differential amplifier drives a gate voltage of the synchronous rectifier switch transistor during an on-time of the current cycle so that a drain voltage of the synchronous rectifier switch transistor equals the drain threshold voltage during a regulated portion of the current cycle.

2. 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.

3. 发明申请

US20190280589A1 THERMAL DE-RATING FOR A MULTI-MODE SWITCHING POWER CONVERTER 审中-公开
公开(公告)号：US20190280589A1
公开(公告)日：2019-09-12
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： H02M1/32 , H02M3/335 , H02J7/00 , 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.

4. 发明申请

US20160294289A1 PROTOCOL FOR COMMUNICATION BETWEEN SECONDARY SIDE AND PRIMARY SIDE OF ISOLATED SWITCHING POWER CONVERTERS 有权
标题翻译：隔离开关电源转换器二次侧和初级侧通讯协议
公开(公告)号：US20160294289A1
公开(公告)日：2016-10-06
申请号：US15026937
申请日：2014-10-09
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Hien Huu Bui , Mengfei Liu , Jianming Yao
IPC分类号： H02M3/24
CPC分类号： H02M3/24 , G06F1/266 , H02M3/33523
摘要： A power converter system comprises a switching power converter having a primary side and a secondary side that are electrically isolated from each other. A first controller on the primary side of the switching power converter controls a switch in the switching power converter on or off at a switching frequency of the switching power converter to regulate an output voltage of the switching power converter. A second controller on the secondary side of the switching power converter encodes information into one or more pulses such that a first duration between the consecutive pulses corresponds to a first logic level and a second duration between the consecutive pulses corresponds to a second logic level, the second duration being greater than the first duration.
摘要翻译：电力转换器系统包括具有彼此电隔离的初级侧和次级侧的开关功率转换器。开关电源转换器的初级侧的第一控制器在开关电源转换器的开关频率下对开关电源转换器的开关进行控制，以调节开关功率转换器的输出电压。开关功率转换器的次级侧上的第二控制器将信息编码成一个或多个脉冲，使得连续脉冲之间的第一持续时间对应于第一逻辑电平，并且连续脉冲之间的第二持续时间对应于第二逻辑电平，第二持续时间大于第一持续时间。

5. 发明授权

US10855187B1 Dynamic discharge current control for improving power supply output regulation 有权
公开(公告)号：US10855187B1
公开(公告)日：2020-12-01
申请号：US16563770
申请日：2019-09-06
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Yimin Chen , Mengfei Liu , Jianming Yao
IPC分类号： H02M3/335 , H02M1/00
摘要： A flyback converter controller is provided with secondary-side controller that adjusts a discharge current form an output voltage rail during a communication period with a primary-side controller to maintain the output voltage within regulation.

6. 发明授权

US10090671B2 Short circuit protection for data interface charging 有权
公开(公告)号：US10090671B2
公开(公告)日：2018-10-02
申请号：US15212124
申请日：2016-07-15
申请人： Dialog Semiconductor Inc.
发明人： Yimin Chen , Mengfei Liu , Duc Doan , Xiaoyong Zhang , Jianming Yao
IPC分类号： H02J7/06 , H02J7/24 , H02H7/12 , H02M3/335 , H02J7/00
摘要： A switching power converter is provided with an overvoltage protection circuit that softly switches on a power bus switch during a soft-start period responsive to a device connecting to a data cable for receiving power over a power bus coupled to the power bus switch.

7. 发明授权

US09774261B2 Protocol for communication between secondary side and primary side of isolated switching power converters 有权
公开(公告)号：US09774261B2
公开(公告)日：2017-09-26
申请号：US15026937
申请日：2014-10-09
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Hien Huu Bui , Mengfei Liu , Jianming Yao
IPC分类号： H02M3/24 , G06F1/26 , H02M3/335
CPC分类号： H02M3/24 , G06F1/266 , H02M3/33523
摘要： A power converter system comprises a switching power converter having a primary side and a secondary side that are electrically isolated from each other. A first controller on the primary side of the switching power converter controls a switch in the switching power converter on or off at a switching frequency of the switching power converter to regulate an output voltage of the switching power converter. A second controller on the secondary side of the switching power converter encodes information into one or more pulses such that a first duration between the consecutive pulses corresponds to a first logic level and a second duration between the consecutive pulses corresponds to a second logic level, the second duration being greater than the first duration.

8. 发明授权

US11323017B2 Adaptive gate regulation for a synchronous rectifier flyback converter 有权
公开(公告)号：US11323017B2
公开(公告)日：2022-05-03
申请号：US16888466
申请日：2020-05-29
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Qingqing Zong , Yimin Chen , Mengfei Liu , Pengju Kong
IPC分类号： H02M1/08 , H03K5/24 , H02M3/335 , H03K5/00
摘要： A flyback converter is provided that dynamically adjusts a drain threshold voltage for a current cycle of a synchronous rectifier switch transistor based upon operating conditions in a previous cycle of the synchronous rectifier switch transistor. A differential amplifier drives a gate voltage of the synchronous rectifier switch transistor during an on-time of the current cycle so that a drain voltage of the synchronous rectifier switch transistor equals the drain threshold voltage during a regulated portion of the current cycle.

9. 发明授权

US11139745B2 Flyback converter input voltage detection 有权
公开(公告)号：US11139745B2
公开(公告)日：2021-10-05
申请号：US16911344
申请日：2020-06-24
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Jianming Yao , Mengfei Liu , Wenduo Liu
IPC分类号： H02M3/335 , G01R19/165 , H02M1/08
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.

10. 发明申请

US20180019587A1 SHORT CIRCUIT PROTECTION FOR DATA INTERFACE CHARGING 审中-公开
公开(公告)号：US20180019587A1
公开(公告)日：2018-01-18
申请号：US15212124
申请日：2016-07-15
申请人： Dialog Semiconductor Inc.
发明人： Yimin Chen , Mengfei Liu , Duc Doan , Xiaoyong Zhang , Jianming Yao
IPC分类号： H02H7/12 , H02J7/00 , H02M3/335
CPC分类号： H02H7/1213 , H02J7/0052 , H02J2007/0059 , H02J2007/006 , H02J2007/0062 , H02M1/36 , H02M3/33576
摘要： A switching power converter is provided with an overvoltage protection circuit that softly switches on a power bus switch during a soft-start period responsive to a device connecting to a data cable for receiving power over a power bus coupled to the power bus switch.

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