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公开(公告)号：US11018660B2
公开(公告)日：2021-05-25
申请号：US16125620
申请日：2018-09-07
发明人： Yue Zhuo , Wenhui Qin , Yingjie Guo , Shaoyu Ma , Tianting Zhao , Baoxing Chen
摘要： Power isolators with multiple selectable feedback modes are described. The power isolators may transfer a power signal from a primary side to a second side. A feedback signal may be provided from the secondary side to the primary side to control generation of the power signal on the primary side. In this manner, the power signal provided to the secondary side may be maintained within desired levels. The feedback signal may be generated by feedback circuitry configurable to operate in different modes, such that the feedback signal may be of differing types depending on which feedback mode is implemented.
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公开(公告)号：US10680526B2
公开(公告)日：2020-06-09
申请号：US15406014
申请日：2017-01-13
发明人： Yue Zhuo , Baoxing Chen , Xin Yang , Tianting Zhao
IPC分类号： H02M3/335
摘要： Isolated DC-DC converters are described. A DC-DC converter is a device which converts a direct current (DC) signal from one voltage to another. An isolated DC-DC converter performs the conversion across an electrical isolation barrier separating two voltage domains. The signal converted from one voltage to another, and transferred from one voltage domain to another, may be a power signal. Described are isolated DC-DC converters which transfer a power signal from one voltage domain to another via an isolator, and a power feedback signal back across the isolator. The isolator is a transformer in some situations.
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公开(公告)号：US10003267B1
公开(公告)日：2018-06-19
申请号：US15383480
申请日：2016-12-19
发明人： Tianting Zhao , Baoxing Chen , Yue Zhuo
摘要： Isolated DC-DC converters and methods for operating the same are described herein. DC-DC converters include a driver that drives a primary winding of a transformer to transmit power to a secondary winding of the transformer across an isolation barrier. In some embodiments, a pair of symmetrical serial capacitors are provided between the driver and the primary winding of a resonant DC-DC converter with an on-chip transformer to slow down variations of a common mode voltage on the primary winding during operation. This in turn can suppress radiation emissions related to time variation rates of the common mode voltage and, and can also improve electromagnetic interference (EMI) performance of the DC-DC converter.
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公开(公告)号：US10164614B2
公开(公告)日：2018-12-25
申请号：US15087723
申请日：2016-03-31
发明人： Xin Yang , Tianting Zhao , Baoxing Chen
摘要： Embodiments of the present disclosure may provide a circuit comprising a tank circuit. The tank circuit may include an inductor having a pair of terminals, a first pair of transistors, and a first pair of capacitors. Each transistor may be coupled between a respective terminal of the inductor and a reference voltage along a source-to-drain path of the transistor. Each capacitor may be provided in a signal path between an inductor terminal coupled to a respective first transistor in the first pair and a gate of a second transistor in the first pair.
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公开(公告)号：US20200083874A1
公开(公告)日：2020-03-12
申请号：US16125620
申请日：2018-09-07
发明人： Yue Zhuo , Wenhui Qin , Yingjie Guo , Shaoyu Ma , Tianting Zhao , Baoxing Chen
摘要： Power isolators with multiple selectable feedback modes are described. The power isolators may transfer a power signal from a primary side to a second side. A feedback signal may be provided from the secondary side to the primary side to control generation of the power signal on the primary side. In this manner, the power signal provided to the secondary side may be maintained within desired levels. The feedback signal may be generated by feedback circuitry configurable to operate in different modes, such that the feedback signal may be of differing types depending on which feedback mode is implemented.
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公开(公告)号：US20180205319A1
公开(公告)日：2018-07-19
申请号：US15406014
申请日：2017-01-13
发明人： Yue Zhuo , Baoxing Chen , Xin Yang , Tianting Zhao
IPC分类号： H02M3/335
摘要： Isolated DC-DC converters are described. A DC-DC converter is a device which converts a direct current (DC) signal from one voltage to another. An isolated DC-DC converter performs the conversion across an electrical isolation barrier separating two voltage domains. The signal converted from one voltage to another, and transferred from one voltage domain to another, may be a power signal. Described are isolated DC-DC converters which transfer a power signal from one voltage domain to another via an isolator, and a power feedback signal back across the isolator. The isolator is a transformer in some situations.
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公开(公告)号：US20180175735A1
公开(公告)日：2018-06-21
申请号：US15383480
申请日：2016-12-19
发明人： Tianting Zhao , Baoxing Chen , Yue Zhuo
CPC分类号： H02M3/33507 , H02M1/44 , H02M3/3376 , H02M2001/123
摘要： Isolated DC-DC converters and methods for operating the same are described herein. DC-DC converters include a driver that drives a primary winding of a transformer to transmit power to a secondary winding of the transformer across an isolation barrier. In some embodiments, a pair of symmetrical serial capacitors are provided between the driver and the primary winding of a resonant DC-DC converter with an on-chip transformer to slow down variations of a common mode voltage on the primary winding during operation. This in turn can suppress radiation emissions related to time variation rates of the common mode voltage and, and can also improve electromagnetic interference (EMI) performance of the DC-DC converter.
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