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公开(公告)号：US20250038555A1
公开(公告)日：2025-01-30
申请号：US18753373
申请日：2024-06-25
Applicant: Samsung Electronics Co., Ltd.
Inventor： Sungwoo LEE , Jaekyu KIM , Sungwoo MOON , Daewoong CHO , Jungwook HEO
Abstract: A charging circuit may include a buck-boost circuit and a voltage regulator circuit, wherein the buck-boost circuit converts a first input voltage received at a first node into a first output voltage and charges a battery based on the first output voltage, and time-divisionally converts a second input voltage provided from the battery into a second output voltage provided to a first external device and a third output voltage provided to a second external device, and the voltage regulator circuit adjusts the first input voltage to generate the second output voltage and the third output voltage.
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2.发明公开公开(公告)号：US20230327548A1
公开(公告)日：2023-10-12
申请号：US18151115
申请日：2023-01-06
Applicant: Samsung Electronics Co., Ltd.
Inventor： Dam YUN , Jaekyu KIM , Jehyung YOON , Sangik CHO
CPC classification number: H02M3/157 , H02M1/083 , H02M1/0009
Abstract: Disclosed is a DC-to-DC converter which includes a first switching circuit connected between a power line receiving a DC voltage and an output terminal of the DC-to-DC converter and switched based on a first pulse control signal, a second switching circuit connected between the output terminal and a ground and switched based on a second pulse control signal, a pulse control signal generation circuit that receives a first level of a first voltage associated with an output voltage and a second level of a first reference voltage, wherein, in response to the second level being higher than the first level, the pulse control signal generation circuit is configured to generate the first pulse control signal to increase the output voltage and wherein, in response to the second level being lower than the first level, the pulse control signal generation circuit is configured to generate the second pulse control signal.
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公开(公告)号：US20220140728A1
公开(公告)日：2022-05-05
申请号：US17346769
申请日：2021-06-14
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jaekyu KIM , Jeonghyeon KIM , Jehyung YOON
Abstract: An operating method of a voltage converter, includes converting an input voltage to an output voltage and providing a load current corresponding to the output voltage in a pulse frequency modulation mode or a pulse width modulation mode, entering the pulse frequency modulation mode in response to an amount of the load current being less than or equal to a first threshold value, and entering the pulse width modulation mode in response to the amount of the load current being greater than a second threshold value.
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