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公开(公告)号：US20210143736A1
公开(公告)日：2021-05-13
申请号：US17084663
申请日：2020-10-30
Applicant: MEDIATEK INC.
Inventor： Wei-Chung Chen , Kuo-Chun Hsu , Chen Tsou , Chao-Chang Chiu , Chih-Wei Chang
Abstract: A switching regulator includes a first switch circuit, a second switch circuit, and a protection circuit. The first switch circuit has a first connection node coupled to a first reference voltage, and a second connection node coupled to one end of an inductor. The second switch circuit has a first connection node coupled to a second reference voltage, and a second connection node coupled to the one end of the inductor. The protection circuit senses a voltage level at the first connection node of the first switch circuit, and selectively enables an auxiliary current path in response to the voltage level at the first connection node of the first switch circuit, wherein the auxiliary current path and at least the first switch circuit are arranged in a parallel connection fashion.
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公开(公告)号：US10707756B2
公开(公告)日：2020-07-07
申请号：US16395354
申请日：2019-04-26
Applicant: MEDIATEK Inc.
Inventor： Chao-Chang Chiu , Kuo-Chun Hsu
Abstract: The invention provides a method for improving efficiency of a power converter which may include a switch coupled between a power source and a middle node, and may supply an inductor current at the middle node to result in an output voltage and a load current. The method may comprise: during an intermediate mode, controlling the inductor current to ripple with peaks at a peak current threshold and valleys which may vary as the load current varies.
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公开(公告)号：US11557971B2
公开(公告)日：2023-01-17
申请号：US17084663
申请日：2020-10-30
Applicant: MEDIATEK INC.
Inventor： Wei-Chung Chen , Kuo-Chun Hsu , Chen Tsou , Chao-Chang Chiu , Chih-Wei Chang
Abstract: A switching regulator includes a first switch circuit, a second switch circuit, and a protection circuit. The first switch circuit has a first connection node coupled to a first reference voltage, and a second connection node coupled to one end of an inductor. The second switch circuit has a first connection node coupled to a second reference voltage, and a second connection node coupled to the one end of the inductor. The protection circuit senses a voltage level at the first connection node of the first switch circuit, and selectively enables an auxiliary current path in response to the voltage level at the first connection node of the first switch circuit, wherein the auxiliary current path and at least the first switch circuit are arranged in a parallel connection fashion.
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