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公开(公告)号：US12149155B2
公开(公告)日：2024-11-19
申请号：US18517508
申请日：2023-11-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Min Sang Park , Dongjin Keum , Byoungmook Kim
Abstract: An apparatus configured to measure a load current provided to a load of a switching converter includes a pulse generation circuit configured to generate a control pulse based on a power switch driving signal of the switching converter, a reference current generation circuit configured to generate a reference current based on the control pulse, a clock generation circuit configured to generate a clock signal based on the control pulse and the reference current, and a clock counter configured to count the number of cycles of the clock signal during a switching period of the switching converter. The reference current generation circuit is configured to adjust the reference current to compensate for a leakage current generated in the clock generation circuit during the switching period.
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Patent Agency Ranking
公开(公告)号：US20220276694A1
公开(公告)日：2022-09-01
申请号：US17643526
申请日：2021-12-09
Applicant: SAMSUNG ELECTRONICS CO., LTD
Inventor： Younghun KIM , Kyungrae Kim , Min Sang Park , Junhyun Bae , Junchul Shin , Younghoon Lee
IPC: G06F1/3296 , G06F1/324
Abstract: A power management integrated circuit (PMIC) includes voltage regulators, a conversion circuit, a measurement cycle controller, an oscillator, and a control logic. The voltage regulators generate regulator voltages. The conversion circuit converts analog signals indicating load currents of the voltage regulators to generate digital signals corresponding to the load currents. The measurement cycle controller operates in response to a first clock signal having a first frequency and generates an oscillation enable signal that is activated during a measurement period. The oscillator generates a second clock signal having a second frequency higher than the first frequency in response to the oscillation enable signal. The control logic operates in response to the second clock signal and generates power information, indicating power consumed by the load currents during the measurement period, using the digital signals.
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公开(公告)号：US11901801B2
公开(公告)日：2024-02-13
申请号：US17540538
申请日：2021-12-02
Applicant: Samsung Electronics Co., Ltd.
Inventor： Min Sang Park , Kyungrae Kim
CPC classification number: H02M1/0009 , H02M3/158
Abstract: A method of measuring a load current provided to a load of a switching converter includes obtaining a first reference voltage defining a peak of an inductor current passing through an inductor of the switching converter, generating a pulse based on the first reference voltage and an on-time of at least one power switch of the switching converter, generating an output signal by filtering the pulse, and setting a second mode from a first mode when a value of the load current is less than a first threshold value based on the output signal. The generating of the pulse further includes generating the pulse having a width extended in proportion to the on-time in the second mode.
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公开(公告)号：US12199495B2
公开(公告)日：2025-01-14
申请号：US18394006
申请日：2023-12-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Min Sang Park , Kyungrae Kim
Abstract: A method of measuring a load current provided to a load of a switching converter includes obtaining a first reference voltage defining a peak of an inductor current passing through an inductor of the switching converter, generating a pulse based on the first reference voltage and an on-time of at least one power switch of the switching converter, generating an output signal by filtering the pulse, and setting a second mode from a first mode when a value of the load current is less than a first threshold value based on the output signal. The generating of the pulse further includes generating the pulse having a width extended in proportion to the on-time in the second mode.
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公开(公告)号：US12061514B2
公开(公告)日：2024-08-13
申请号：US17643526
申请日：2021-12-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Younghun Kim , Kyungrae Kim , Min Sang Park , Junhyun Bae , Junchul Shin , Younghoon Lee
CPC classification number: G06F1/3296 , G06F1/324
Abstract: A power management integrated circuit (PMIC) includes voltage regulators, a conversion circuit, a measurement cycle controller, an oscillator, and a control logic. The voltage regulators generate regulator voltages. The conversion circuit converts analog signals indicating load currents of the voltage regulators to generate digital signals corresponding to the load currents. The measurement cycle controller operates in response to a first clock signal having a first frequency and generates an oscillation enable signal that is activated during a measurement period. The oscillator generates a second clock signal having a second frequency higher than the first frequency in response to the oscillation enable signal. The control logic operates in response to the second clock signal and generates power information, indicating power consumed by the load currents during the measurement period, using the digital signals.
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公开(公告)号：US11863056B2
公开(公告)日：2024-01-02
申请号：US17569075
申请日：2022-01-05
Applicant: Samsung Electronics Co., Ltd.
Inventor： Min Sang Park , Dongjin Keum , Byoungmook Kim
CPC classification number: H02M1/0009 , H02M3/157 , H02M3/158
Abstract: An apparatus configured to measure a load current provided to a load of a switching converter includes a pulse generation circuit configured to generate a control pulse based on a power switch driving signal of the switching converter, a reference current generation circuit configured to generate a reference current based on the control pulse, a clock generation circuit configured to generate a clock signal based on the control pulse and the reference current, and a clock counter configured to count the number of cycles of the clock signal during a switching period of the switching converter. The reference current generation circuit is configured to adjust the reference current to compensate for a leakage current generated in the clock generation circuit during the switching period.
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