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1. 发明申请

US20150160270A1 Primary Sensing of Output Voltage for an AC-DC Power Converter 有权
标题翻译： AC-DC电源转换器的输出电压初级检测
公开(公告)号：US20150160270A1
公开(公告)日：2015-06-11
申请号：US14563954
申请日：2014-12-08
申请人： Dialog Semiconductor Inc.
发明人： Fuqiang Shi , Pengju Kong , Hien Huu Bui , Judy Sha , David Nguyen , Duc Doan
IPC分类号： G01R19/00 , G01R25/00 , H02M3/335 , G01R23/02
CPC分类号： H02M3/33515 , G01R19/0084 , H02M3/335 , H02M3/33523
摘要： A method for estimating an output voltage of a power converter comprises sensing a voltage waveform representative of the output voltage; and detecting a first gap and a second gap. The first gap is between a time when the sensed voltage waveform crosses a first voltage reference and a time when the sensed voltage waveform crosses a second voltage reference at a voltage offset below the first voltage reference. The second gap is between a time when the sensed voltage waveform crosses a third voltage reference and a time when the sensed voltage waveform crosses the second voltage reference, the third voltage referenced at a predetermined voltage above the second voltage reference. Responsive to the first gap exceeding a threshold, a tracking error is computed based on the first gap; and responsive to the first gap not exceeding the threshold, the tracking error is computed based on the second gap.
摘要翻译：用于估计功率转换器的输出电压的方法包括：感测代表输出电压的电压波形; 以及检测第一间隙和第二间隙。第一间隙在检测到的电压波形与第一参考电压相交的时间与当感测电压波形在低于第一参考电压的电压偏移下与第二参考电压相交的时间之间。第二间隙在检测到的电压波形跨越第三参考电压的时间和当感测的电压波形与第二参考电压相交的时间之间时，第三电压以高于第二参考电压的预定电压参考。响应于超过阈值的第一间隙，基于第一间隙计算跟踪误差; 并且响应于不超过阈值的第一间隙，基于第二间隙计算跟踪误差。

2. 发明授权

US10666150B1 Flyback converter with output current calibration 有权
公开(公告)号：US10666150B1
公开(公告)日：2020-05-26
申请号：US16215302
申请日：2018-12-10
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Kai-Wen Chin , Jianming Yao , David Nguyen , Tao Li
IPC分类号： H02M3/335 , H01M10/44 , H02M1/00
摘要： An output current calibration is disclosed to increase the accuracy and precision of the constant-current mode for a flyback converter.

3. 发明申请

US20170346313A1 Short Circuit and Soft Short Protection for Data Interface Charging 审中-公开
公开(公告)号：US20170346313A1
公开(公告)日：2017-11-30
申请号：US15604515
申请日：2017-05-24
申请人： Dialog Semiconductor Inc.
发明人： Jianming Yao , Kai-Wen Chin , Yong Li , Cong Zheng , David Nguyen , Fuqiang Shi
IPC分类号： H02J7/00 , G01R31/02 , H02M1/32 , H02M3/335
CPC分类号： H02J7/0029 , G01R31/025 , H02J7/0052 , H02J7/0072 , H02J2007/0096 , H02M1/32 , H02M3/33523
摘要： A switching power converter is provided that communicates with a mobile device to receive a value of a load detection current. The switching power converter adjusts the cycling of a power switch until a constant current mode of operation is entered with a known output current driving the mobile device. The switching power converter subtracts the load current from the output current to measure a soft-short circuit current.

4. 发明申请

US20170093295A1 ADAPTIVE CABLE DROP COMPENSATION 有权
公开(公告)号：US20170093295A1
公开(公告)日：2017-03-30
申请号：US15312174
申请日：2015-05-29
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Jianming Yao , Hien Huu Bui , David Nguyen
IPC分类号： H02M3/335
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.

5. 发明申请

US20140376280A1 PRECISE OUTPUT POWER DETECTION 有权
标题翻译：精密输出功率检测
公开(公告)号：US20140376280A1
公开(公告)日：2014-12-25
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
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上的辅助绕组，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。

6. 发明申请

US20200186041A1 FLYBACK CONVERTER WITH OUTPUT CURRENT CALIBRATION 审中-公开
公开(公告)号：US20200186041A1
公开(公告)日：2020-06-11
申请号：US16215302
申请日：2018-12-10
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Kai-Wen Chin , Jianming Yao , David Nguyen , Tao Li
IPC分类号： H02M3/335
摘要： An output current calibration is disclosed to increase the accuracy and precision of the constant-current mode for a flyback converter.

7. 发明授权

US10116161B2 Line ripple compensation for switching power converters 有权
公开(公告)号：US10116161B2
公开(公告)日：2018-10-30
申请号：US15406534
申请日：2017-01-13
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Kai-Wen Chin , Fuqiang Shi , Pengju Kong , David Nguyen
IPC分类号： H02M1/14 , H02M3/335 , H02J7/00 , H02M1/08 , H02M1/00
摘要： A line ripple compensation technique is provided for a switching power converter operating in both a pulse frequency mode of operation and a pulse width modulation mode of operation.

8. 发明申请

US20180205254A1 Line Ripple Compensation for Switching Power Converters 审中-公开
公开(公告)号：US20180205254A1
公开(公告)日：2018-07-19
申请号：US15406534
申请日：2017-01-13
申请人： DIALOG SEMICONDUCTOR INC.
发明人： Kai-Wen Chin , Fuqiang Shi , Pengju Kong , David Nguyen
IPC分类号： H02J7/00 , H02M1/14 , H02M3/335 , H02M1/08
CPC分类号： H02J7/0093 , H02J2007/0095 , H02M1/14 , H02M3/33507 , H02M2001/0022
摘要： A line ripple compensation technique is provided for a switching power converter operating in both a pulse frequency mode of operation and a pulse width modulation mode of operation.

9. 发明授权

US09985537B2 Primary sensing of output voltage for an AC-DC power converter 有权
公开(公告)号：US09985537B2
公开(公告)日：2018-05-29
申请号：US14563954
申请日：2014-12-08
申请人： Dialog Semiconductor Inc.
发明人： Fuqiang Shi , Pengju Kong , Hien Huu Bui , Judy Sha , David Nguyen , Duc Doan
IPC分类号： H02M3/335 , G01R19/00
CPC分类号： H02M3/33515 , G01R19/0084 , H02M3/335 , H02M3/33523
摘要： A method for estimating an output voltage of a power converter comprises sensing a voltage waveform representative of the output voltage; and detecting a first gap and a second gap. The first gap is between a time when the sensed voltage waveform crosses a first voltage reference and a time when the sensed voltage waveform crosses a second voltage reference at a voltage offset below the first voltage reference. The second gap is between a time when the sensed voltage waveform crosses a third voltage reference and a time when the sensed voltage waveform crosses the second voltage reference, the third voltage referenced at a predetermined voltage above the second voltage reference. Responsive to the first gap exceeding a threshold, a tracking error is computed based on the first gap; and responsive to the first gap not exceeding the threshold, the tracking error is computed based on the second gap.

10. 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。

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