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1.发明公开公开(公告)号：US20240118733A1
公开(公告)日：2024-04-11
申请号：US18536328
申请日：2023-12-12
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： INSUNG KIM , JOOMYOUNG KIM , WOOSEOK KIM , TAEIK KIM
Abstract: An electronic device including: a regulator circuit configured to output a regulated voltage based on a reference voltage and a feedback voltage; and an oscillator configured to generate an output frequency signal based on a reference frequency signal and the regulated voltage output from the regulator circuit, wherein the regulator circuit includes: a feedback loop configured to output the regulated voltage based on a difference between the reference voltage and the feedback voltage; a first capacitor; a precharge circuit connected to the feedback loop, and configured to charge the first capacitor with a second voltage which is based on a first voltage; a first switch configured to connect the precharge circuit with the first capacitor; and a second switch configured to connect the first capacitor with the feedback loop.
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Patent Agency Ranking
公开(公告)号：US20220385294A1
公开(公告)日：2022-12-01
申请号：US17675351
申请日：2022-02-18
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： KANGYEOP CHOO , WOOSEOK KIM , WONSIK YU , CHANYOUNG JEONG
Abstract: A digitally controlled oscillator (DCO) includes; a current mirror configured to generate a supply current in response to a bias voltage matching a reference current, a variable resistor connected to the current mirror through a first node outputting the reference current and configured to provide a variable resistance in response to a first control signal, an oscillation circuit connected to the current mirror through a second node outputting the supply current and configured to generate an oscillation signal in response to the supply current, and a feedback circuit configured to control the bias voltage in relation to at least one of a voltage at the first node and a voltage at the second node.
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公开(公告)号：US20220345137A1
公开(公告)日：2022-10-27
申请号：US17509540
申请日：2021-10-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： KANGYEOP CHOO , INSUNG KIM , WOOSEOK KIM , TAEIK KIM , SUNGHYUCK LEE , CHANYOUNG JEONG
Abstract: A phased locked loop includes; a load circuit that generates an output signal in response to a driving voltage, a frequency calibration circuit that generates a calibration signal in response to an output frequency of the output signal and a target frequency, and a regulator that generates the driving voltage in response to the calibration signal.
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4.发明申请公开(公告)号：US20180198451A1
公开(公告)日：2018-07-12
申请号：US15803026
申请日：2017-11-03
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： SANGDON JUNG , DOKYUNG LIM , WOOSEOK KIM
CPC classification number: H03L1/028 , H03B5/04 , H03B5/08 , H03B5/32 , H03B5/368 , H03B2201/0266 , H03L1/022 , H03L1/027
Abstract: A temperature compensated oscillation controller includes a temperature compensation circuit configured to provide a reference voltage through a first terminal and to receive an input voltage including temperature information through a second terminal, and an oscillation circuit configured to be connected to an external crystal resonator through third and fourth terminals and to output a clock signal in response to an oscillation signal from the external crystal resonator. The temperature compensation circuit is configured to perform a voltage controlled oscillator-based sensing operation to convert the input voltage into a temperature code and to adjust a frequency of the clock signal using the temperature code.
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公开(公告)号：US20220311424A1
公开(公告)日：2022-09-29
申请号：US17702482
申请日：2022-03-23
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： JUSUNG LEE , WOOSEOK KIM , TAEIK KIM , CHANYOUNG JEONG
Abstract: A bandgap reference circuit includes a reference current generation circuit configured to output a bandgap reference current insensitive to a temperature change, by using a first voltage inversely proportional to temperature and a third voltage proportional to temperature. The third voltage is a difference between the first voltage and a second voltage. The bandgap reference circuit further includes a resistivity temperature coefficient cancellation circuit configured to remove a first current proportional to temperature from the bandgap reference current by using the third voltage, and a reference voltage generation circuit configured to output a bandgap reference voltage insensitive to a temperature change by using a second current inversely proportional to temperature and a first resistance proportional to temperature. The second current is generated by removing the first current from the bandgap reference current.
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公开(公告)号：US20220107675A1
公开(公告)日：2022-04-07
申请号：US17394520
申请日：2021-08-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： INSUNG KIM , JOOMYOUNG KIM , WOOSEOK KIM , TAEIK KIM
Abstract: An electronic device including: a regulator circuit configured to output a regulated voltage based on a reference voltage and a feedback voltage; and an oscillator configured to generate an output frequency signal based on a reference frequency signal and the regulated voltage output from the regulator circuit, wherein the regulator circuit includes: a feedback loop configured to output the regulated voltage based on a difference between the reference voltage and the feedback voltage; a first capacitor; a precharge circuit connected to the feedback loop, and configured to charge the first capacitor with a second voltage which is based on a first voltage; a first switch configured to connect the precharge circuit with the first capacitor; and a second switch configured to connect the first capacitor with the feedback loop.
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