公开(公告)号：US20200244180A1

公开(公告)日：2020-07-30

申请号：US16846559

申请日：2020-04-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： TAKAHIRO NOMIYAMA ,  Sung Woo Moon ,  Yus Ko

IPC: H02M7/217 ,  H02M7/219 ,  H03K17/16 ,  H02M1/08

Abstract: Provided are a semiconductor device and a method of operating the same. A semiconductor device may include a comparator which compares a first voltage with a rectified voltage and provides a second voltage in accordance with the comparison. A timer circuit may operate a timer according to the second voltage and output a third voltage in correspondence with an operation time of the timer. A driver may drive a transistor with a fourth voltage generated by the driver according to the third voltage. A calibration circuit may generate a timer calibration signal based on the second voltage and the fourth voltage. The timer calibration signal may be provided to the timer circuit and used to calibrate the operation time of the timer. More efficient rectification, with reduced occurrence of reverse current, may thereby be realized.

公开(公告)号：US20170085256A1

公开(公告)日：2017-03-23

申请号：US15171680

申请日：2016-06-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： TAKAHIRO NOMIYAMA ,  DONG-JIN KEUM ,  HOANG QUOC DUONG ,  JAE-YEOL HAN

IPC: H03K17/082 ,  G05F1/575 ,  H03K19/00 ,  H03K19/20 ,  H03K5/24 ,  H03K3/037

CPC classification number: H03K17/0822 ,  G05F1/575 ,  G11C5/147 ,  H03K3/0377 ,  H03K5/24 ,  H03K19/0013 ,  H03K19/20 ,  H03K2217/0027

Abstract: A voltage regulator includes a high duty cycle detector, a feedback controller, a hysteretic comparator, and first and second drivers. The high duty cycle detector generates a high duty cycle signal based on a power supply voltage and a reference voltage. The feedback controller generates first and second feedback voltages based on the reference voltage, the high duty cycle signal and an output voltage of the voltage regulator. The hysteretic comparator compares the reference voltage and the first feedback voltage to generate a control signal. When the first feedback voltage is activated, the first driver drives an output node that provides the output voltage based on the control signal and the high duty cycle signal. When the second feedback voltage is activated, the second driver generates a third voltage proportional to the reference voltage based on the power supply voltage and the second feedback voltage, and drives the output node with the third voltage.

公开(公告)号：US20240061456A1

公开(公告)日：2024-02-22

申请号：US18355514

申请日：2023-07-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： DONGHA LEE ,  SEKI KIM ,  TAKAHIRO NOMIYAMA

IPC: G05F1/575 ,  G05F1/565 ,  G05F1/46

CPC classification number: G05F1/575 ,  G05F1/565 ,  G05F1/462

Abstract: A low dropout (LDO) regulator includes comparison circuitry configured to generate a comparison result signal by comparing a target voltage with an output voltage corresponding to an output voltage of an output terminal connected to an integrated circuit, voltage increase/decrease detection circuitry configured to generate a detection result signal by detecting whether the output voltage increases or decreases, control circuitry configured to generate a current control code having a value that is changed, based on a control mode selected according to the comparison result signal and the detection result signal, and current driving circuitry configured to receive the current control code and generate an output current corresponding to the current control code.

公开(公告)号：US20190334750A1

公开(公告)日：2019-10-31

申请号：US16233192

申请日：2018-12-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： TAKAHIRO NOMIYAMA ,  Dong-su KIM ,  Ji-seon PAEK

IPC: H04L27/26 ,  H03F1/02 ,  H03F3/19

Abstract: A symbol power tracking amplification system including: a modem to generate data and symbol tracking signals; a symbol tracking modulator including a control circuit, first and second voltage supply circuits and a switch circuit, the control circuit generates first and second voltage level control signals in response to the symbol tracking signal, the first voltage supply circuit generates a first output voltage in response to the first voltage level control signal, the second voltage supply circuit generates a second output voltage in response to the second voltage level control signal and the switch circuit outputs the first or second output voltages as a supply voltage in response to a switch control signal; an RF block to generate an RF signal based on the data signal from the modem; and a power amplifier to adjust a power level of the RF signal based on the supply voltage.

公开(公告)号：US20180205324A1

公开(公告)日：2018-07-19

申请号：US15802591

申请日：2017-11-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： TAKAHIRO NOMIYAMA ,  SUNG WOO MOON ,  YUS KO

IPC: H02M7/217 ,  H02M1/08 ,  H03K17/16

CPC classification number: H02M7/217 ,  H02M1/083 ,  H02M7/219 ,  H02M2001/0058 ,  H03K17/164 ,  H03K2017/307 ,  H03K2217/0045

Abstract: Provided are a semiconductor device and a method of operating the same. A semiconductor device may include a comparator which compares a first voltage with a rectified voltage and provides a second voltage in accordance with the comparison. A timer circuit may operate a timer according to the second voltage and output a third voltage in correspondence with an operation time of the timer. A driver may drive a transistor with a fourth voltage generated by the driver according to the third voltage. A calibration circuit may generate a timer calibration signal based on the second voltage and the fourth voltage. The timer calibration signal may be provided to the timer circuit and used to calibrate the operation time of the timer. More efficient rectification, with reduced occurrence of reverse current, may thereby be realized.

公开(公告)号：US20160336858A1

公开(公告)日：2016-11-17

申请号：US15132469

申请日：2016-04-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： TAKAHIRO NOMIYAMA ,  ILYOUNG SOHN ,  SUHO LEE ,  MINSOO CHO ,  JAEYEOL HAN

IPC: H02M3/158 ,  H03K5/24 ,  H03K3/3565 ,  H03K17/687

CPC classification number: H02M3/158 ,  H02M2001/0025 ,  H02M2003/1566 ,  H03K5/24

Abstract: A power converting circuit includes a voltage converting circuit, a feedback circuit, a driving signal generator, a transient state detector, and a resistance value adjuster. The voltage converting circuit changes a voltage level of an input voltage in response to a driving signal, and outputs an output voltage according to the changed voltage level of the input voltage. The feedback circuit divides the output voltage to output the divided output voltage as a feedback voltage. The driving signal generator compares a level of the feedback voltage with a level of a reference voltage and outputs the driving signal. The transient state detector compares the level of the feedback voltage with the level of the reference voltage and outputs a transient state signal corresponding to a transient state of the output voltage. The resistance value adjuster adjusts the feedback resistance value, which divides the output voltage, in response to the transient state signal.

Abstract translation: 电力转换电路包括电压转换电路，反馈电路，驱动信号发生器，瞬态状态检测器和电阻值调节器。 电压转换电路响应于驱动信号改变输入电压的电压电平，并且根据输入电压的改变的电压电平输出输出电压。 反馈电路分压输出电压，将分压输出电压输出为反馈电压。 驱动信号发生器将反馈电压的电平与参考电压的电平进行比较，并输出驱动信号。 瞬态状态检测器将反馈电压的电平与参考电压的电平进行比较，并输出与输出电压的过渡状态对应的瞬态状态信号。 电阻值调节器根据瞬态状态信号调整反馈电阻值，该值反映输出电压。