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公开(公告)号：US12222378B2
公开(公告)日：2025-02-11
申请号：US18013236
申请日：2021-06-28
Applicant: ZTE CORPORATION
Inventor： Qia Wang , Jianping Zhou , Guoxian Lin , Shanshan Fan , Ben E , Wei Zhang , Mingming Liu
Abstract: A ripple detection device and a ripple suppression device. The ripple detection device includes: a ripple sampling unit, at least two DC sampling units, and a digital signal processing unit; the ripple sampling unit outputs a first voltage signal at an output port of a non-isolated DC/DC bidirectional energy conversion unit to the digital signal processing unit; the DC sampling unit outputs a first DC signal in a second voltage signal at a connected port of the non-isolated DC/DC bidirectional energy conversion unit to the digital signal processing unit and blocks an AC signal in the second voltage signal to be output to the digital signal processing unit; the digital signal processing unit determines a ripple noise signal at the output port of the non-isolated DC/DC bidirectional energy conversion unit according to the first voltage signal and the first DC signal.
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2.发明公开公开(公告)号：US20230344353A1
公开(公告)日：2023-10-26
申请号：US18013497
申请日：2021-06-28
Applicant: ZTE Corporation
Inventor： Jianping Zhou , Qia Wang , Mingming Liu , Guoxian Lin , Ben E , Yulong Cui
CPC classification number: H02M3/1586 , H02M1/08
Abstract: Disclosed are a control method for a bidirectional DC converter, a control module for a bidirectional DC converter, a bidirectional DC converter, and a non-transitory computer-readable storage medium. The control method includes: determining an operating mode of the bidirectional DC converter according to an input voltage and an output voltage; respectively determining a duty cycle of a drive signal of the first switch transistor, a duty cycle of a drive signal of the second switch transistor, a duty cycle of a drive signal of the third switch transistor, and a duty cycle of a drive signal of the fourth switch transistor according to the operating mode of the bidirectional DC converter; and providing drive signals to gates of the first switch transistor, the second switch transistor, the third switch transistor and the fourth switch transistor respectively.
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3.发明授权公开(公告)号：US12244232B2
公开(公告)日：2025-03-04
申请号：US18013497
申请日：2021-06-28
Applicant: ZTE Corporation
Inventor： Jianping Zhou , Qia Wang , Mingming Liu , Guoxian Lin , Ben E , Yulong Cui
Abstract: Disclosed are a control method for a bidirectional DC converter, a control module for a bidirectional DC converter, a bidirectional DC converter, and a non-transitory computer-readable storage medium. The control method includes: determining an operating mode of the bidirectional DC converter according to an input voltage and an output voltage; respectively determining a duty cycle of a drive signal of the first switch transistor, a duty cycle of a drive signal of the second switch transistor, a duty cycle of a drive signal of the third switch transistor, and a duty cycle of a drive signal of the fourth switch transistor according to the operating mode of the bidirectional DC converter; and providing drive signals to gates of the first switch transistor, the second switch transistor, the third switch transistor and the fourth switch transistor respectively.
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4.发明授权公开(公告)号：US10044284B2
公开(公告)日：2018-08-07
申请号：US15578255
申请日：2015-10-26
Applicant: ZTE CORPORATION
Inventor： Qia Wang , Jie Fan , Hongjin Liu , Guoxian Lin , Fengfu Du , Xiufeng Dong , Jianping Zhou
Abstract: A synchronous rectifier driving method, a synchronous rectifier circuit and a switching power supply are provided, and the method includes: detecting an output current in a secondary winding of a transformer unit, and generating a first driving signal according to the output current; obtaining a protection signal according to a voltage signal of the secondary winding of the transformer unit in a synchronous rectifier circuit; correcting the first driving signal by using the obtained protection signal to obtain a second driving signal; and driving a rectifier in the synchronous rectifier circuit according to the second driving signal.
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