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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：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：US20200036284A1
公开(公告)日：2020-01-30
申请号：US16046732
申请日：2018-07-26
发明人： Wenhui Qin , Xin Yang , Shaoyu Ma , Fang Liu , Yuanyuan Zhao
摘要： Power isolators for providing electrical isolation between an input port and an output port that exhibit low electromagnetic interference (EMI) are described. The low EMI may be achieved by, for example, canceling out a common mode current across a transformer in the power isolator that may be converted into EMI. The power isolator may include at least one oscillator circuit that is configured to apply a first signal to a first transformer and a second, different signal to a second transformer. The first and second signals may be configured such that the common mode current generated in each of the first and second transformers has an opposite direction. Thus, the common mode currents in the first and second transformers may at least partially cancel out. As a result, the EMI exhibited by the power isolator may be reduced.
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