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公开(公告)号：US20190207599A1
公开(公告)日：2019-07-04
申请号：US16223590
申请日：2018-12-18
发明人： Marius Mechlinski , Zhihui Yuan , Jingkui Shi , Stefan Schroeder
IPC分类号： H03K17/0812 , G01R19/165 , G01R31/327
CPC分类号： H02M1/32 , H02M1/088 , H02M2001/325 , H03K17/0822 , H03K17/18 , H03K17/74 , H03K2217/0027
摘要： Embodiments of the present disclosure relate to a detection device for a circuit comprising a plurality of switch devices coupled in series. The detection device comprises a plurality of detecting circuits, wherein each detecting circuit is integrated with a gate driver of a corresponding switch device. Each detecting circuit comprises a voltage divider and a signal processor. The voltage divider is coupled in parallel with the corresponding switch device and comprises a plurality of voltage dividing components coupled in series. The signal processor is coupled with one of the voltage dividing components and configured to receive a divided voltage across the voltage dividing component and output an output signal indicating the voltage across the switch device. Embodiments of the present disclosure also relate to a system and method for protecting series-connected switch devices.
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公开(公告)号：US20180342349A1
公开(公告)日：2018-11-29
申请号：US15987666
申请日：2018-05-23
发明人： Saijun Mao , Bo Qu , Jingkui Shi , He Xu , Jie Shen , Tingting Song , Zhihui Yuan , Xin Jiang , Xi Lu , Stefan Schroeder , Marius Michael Mechlinski
IPC分类号： H01F38/14 , H05K1/18 , H01F27/28 , H01F27/24 , H03K17/687
摘要： An integrated system for signal and power transmission with galvanic isolation is disclosed. The integrated system comprises an insulative layer having a primary side and a secondary side; a planar signal transformer and a planar power transformer for signal and power transmission between the primary and the secondary sides of the insulative layer respectively. The planar signal transformer comprises two signal coupling elements which are disposed on the primary and the secondary sides of the insulative layer respectively. The planar power transformer includes two power coupling elements which are disposed on the primary and the secondary sides of the insulative layer respectively. Each of the two signal coupling elements and the two power coupling elements is embedded in at least one layer of a multi-layer printed circuit board. The integrated system of the present disclosure has a compact structure and is suitable for automatic assembly and manufacturing.
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公开(公告)号：US10389230B2
公开(公告)日：2019-08-20
申请号：US15903710
申请日：2018-02-23
发明人： Saijun Mao , Stefan Schroeder , Jingkui Shi , He Xu , Marius Michael Mechlinski , Bo Qu , Zhihui Yuan , Yingqi Zhang , Jie Shen
IPC分类号： H02M1/34 , H03K17/0814 , H03K17/10 , H02M3/158
摘要： The present disclosure relates to a snubber circuit which comprises a static snubber unit, connected in parallel with the switch, for balancing a static voltage sharing across a switch when the switch is in a state of turn-on or turn-off; and a dynamic snubber unit for balance a dynamic voltage sharing across the switch when the switch is in a process of turn-on or turn-off, comprising a dynamic voltage sharing capacitor connected in parallel with the switch and having a relationship between a capacitance and a voltage of the dynamic voltage sharing capacitor; and a controller for controlling the capacitance of the dynamic voltage sharing capacitor to be in a predetermined working area of capacitance rising while the voltage across the switch is increasing. The present disclosure also relates to a power semiconductor device.
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公开(公告)号：US20180287487A1
公开(公告)日：2018-10-04
申请号：US15903710
申请日：2018-02-23
发明人： Saijun Mao , Stefan Schroeder , Jingkui Shi , He Xu , Marius Michael Mechlinski , Bo Qu , Zhihui Yuan , Yingqi Zhang , Jie Shen
CPC分类号： H02M1/34 , H02M3/158 , H02M2001/344 , H02M2001/348 , H03K17/08142 , H03K17/102
摘要： The present disclosure relates to a snubber circuit which comprises a static snubber unit, connected in parallel with the switch, for balancing a static voltage sharing across a switch when the switch is in a state of turn-on or turn-off; and a dynamic snubber unit for balance a dynamic voltage sharing across the switch when the switch is in a process of turn-on or turn-off, comprising a dynamic voltage sharing capacitor connected in parallel with the switch and having a relationship between a capacitance and a voltage of the dynamic voltage sharing capacitor; and a controller for controlling the capacitance of the dynamic voltage sharing capacitor to be in a predetermined working area of capacitance rising while the voltage across the switch is increasing. The present disclosure also relates to a power semiconductor device.
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