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公开(公告)号：US11552568B2
公开(公告)日：2023-01-10
申请号：US16823481
申请日：2020-03-19
Applicant: Samsung Electronics Co., Ltd.
Inventor： Gwangyol Noh
Abstract: Provided are a switching regulator and a power management unit including the switching regulator. A switching regulator configured to transform an input voltage and generate an output voltage includes a first regulating circuit configured to regulate the input voltage and to generate a first voltage based on a first switching signal set having a first duty ratio, and a second regulating circuit configured to regulate the first voltage and to generate the output voltage based on a second switching signal set having a second duty ratio. The switching regulator determines a voltage gain based on the first duty ratio and the second duty ratio, the voltage gain corresponding to a ratio of the output voltage to the input voltage.
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公开(公告)号：US12289051B2
公开(公告)日：2025-04-29
申请号：US17706237
申请日：2022-03-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jaekwan Kim , Gwangyol Noh , Hwayeal Yu , Gil Won Yoon
Abstract: A switching regulator may include; an inductor connected to a switch node, a power switch connected to the switch node and configured to apply a first voltage to the switch node in response to a first control signal and to apply a second voltage to the switch node in response to a second control signal, and a controller configured to generate the first control signal and the second control signal. The second control signal transitions from low to high following a first dead time after the first control signal transitions from low to high, the first control signal transitions from high to low following a second dead time after the second control signal transitions from high to low level, and an inductor current flowing through the inductor flows in a first direction during the first dead time and in a second direction, different from the first direction, during the second dead time.
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