-
公开(公告)号：US11009403B2
公开(公告)日：2021-05-18
申请号：US16170595
申请日：2018-10-25
Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor： Soo Woong Lee
Abstract: A time domain temperature sensor circuit includes a voltage generating circuit configured to generate and equalize a first voltage of a first node and a second voltage of a second node, a current generating circuit comprising a first semiconductor device connected between the first node and a ground, and configured to generate a first current, and a variable resistor circuit and a second semiconductor device connected in series between the second node and the ground, and configured to generate a second current, the variable resistor circuit being configured to vary a temperature gradient of the second current based on resistance variations by the variable resistor circuit, and a current mirror circuit configured to generate a third current by performing current mirroring of the second current and transmit the third current to an output terminal.
-
公开(公告)号：US10451661B2
公开(公告)日：2019-10-22
申请号：US15602653
申请日：2017-05-23
Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor： Jong Woo Lee , Joo Hyoung Lee , Je Hyuk Ryu , Woo Young Choi , Yong Woon Ji , Soo Woong Lee , Byung Joo Hong , Joo Yul Ko
Abstract: A digital frequency measuring apparatus includes a frequency divider dividing an input frequency signal and providing a divided frequency signal; a period counter counting clock cycles in a period of the divided frequency signal using a clock signal and providing a period count value for each period; and a digital filter amplifying the period count value using an accumulated gain, converting an amplified period count value into a frequency, and providing a first digital output value. The digital filter determines the accumulated gain using a predetermined stage number and a predetermined decimator factor.
-
公开(公告)号：US20140028360A1
公开(公告)日：2014-01-30
申请号：US13706608
申请日：2012-12-06
Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor： Soo Woong Lee
IPC: H03L7/00
CPC classification number: H03L7/00 , G06F1/24 , G06F1/26 , H03K17/223
Abstract: Disclosed herein are a power on reset device capable of performing a precise brown out detection (BOD) function and a power on reset method using the same. The power on reset device may include a delay signal generating unit, a reference voltage generating unit, and a reset signal generating comparing a delay signal with a reference voltage to generate a reset signal.
Abstract translation: 这里公开了能够执行精确的欠压检测（BOD）功能的上电复位装置和使用其的上电复位方法。 上电复位装置可以包括延迟信号生成单元，参考电压生成单元和将延迟信号与参考电压进行比较的复位信号，以产生复位信号。
-
4.发明申请MOTOR DRIVE OVERCURRENT BLOCKING CIRCUIT, MOTOR DRIVING CIRCUIT AND METHOD FOR BLOCKING OVERCURRENT THEREOF 审中-公开电动机驱动电流阻塞电路，电动机驱动电路及其过流保护方法公开(公告)号：US20140028233A1
公开(公告)日：2014-01-30
申请号：US13950251
申请日：2013-07-24
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Soo Woong Lee
IPC: H02P29/00
CPC classification number: H02P29/40 , H02H3/087 , H02H7/0838 , H02H7/0853
Abstract: The present invention relates to a motor drive overcurrent blocking circuit, a motor driving circuit, and a method for blocking an overcurrent in a motor driving circuit. The motor drive overcurrent blocking circuit includes: a motor driving unit switched according to a driving control signal to drive a motor; an overcurrent sensing unit connected between a lower end of the sink switching element group and a ground to sense a current flowing in the turned-on switching element of the sink switching element group in the sensing terminal; and an overcurrent blocking unit turned on according to a voltage due to an overcurrent sensed by the overcurrent sensing unit and blocking the overcurrent by sinking the driving control signal applied to the turned-on switching element of the sink switching element group to the ground is provided.
Abstract translation: 本发明涉及一种电动机驱动过电流阻断电路，电动机驱动电路和用于阻止电动机驱动电路中的过电流的方法。 电动机驱动器过电流阻断电路包括：电动机驱动单元，根据驱动控制信号切换以驱动电动机; 连接在宿开关元件组的下端和接地之间的过电流检测单元，用于感测在感测端子中的宿开关元件组的接通开关元件中流动的电流; 并且提供过电流阻断单元根据由过电流检测单元检测到的过电流引起的电压而导通，并且通过将施加到接收开关元件组的接通开关元件的驱动控制信号吸收到地来阻断过电流被提供 。
-
公开(公告)号：US11431290B1
公开(公告)日：2022-08-30
申请号：US17491839
申请日：2021-10-01
Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor： Soo Woong Lee
Abstract: A capacitor circuit includes a capacitor array including first to n-th capacitors connected to each other in parallel; a select switch circuit including first to n-th select switches connected to the first to n-th capacitors in series, respectively; and a short switch circuit including first to n-th short switches connected to the first to n-th capacitors in parallel, respectively, and operating complementarily to the first to n-th select switches, respectively, wherein n is an integer of 2 or greater.
-
Patent Agency Ranking
公开(公告)号：US10855223B2
公开(公告)日：2020-12-01
申请号：US16421812
申请日：2019-05-24
Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor： Soo Woong Lee
IPC: H03B5/12
Abstract: A current control device for a differential circuit is provided. The current control device includes a differential circuit that generates differential signals comprising a positive signal and a negative signal in opposite phases, an amplitude detection circuit detecting an amplitude of the differential signal and outputting first and second detection voltages, an error amplification circuit controlling the differential circuit on the basis of an error voltage between the first and second detection voltages, and a current control circuit controlling the amplitude detection circuit on the basis of any one of the first and second detection voltages.
-
公开(公告)号：US09124205B2
公开(公告)日：2015-09-01
申请号：US13746855
申请日：2013-01-22
Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor： Soo Woong Lee
IPC: H02P6/14 , H02P6/18 , H02P6/16 , H03K17/082 , H03K17/16
CPC classification number: H02P6/182 , H02P6/17 , H03K17/0822 , H03K17/167
Abstract: There is provided an apparatus for generating a motor driving control signal, the apparatus including: an oscillating unit generating an oscillating signal having a preset duty ratio; a selecting unit including a first switch switching a first path connected between the oscillating unit and an output terminal and a second switch complementarily operated with respect to the first switch and switching a second path connected to the first path in parallel; and a duty adjusting unit installed on the second path between the second switch and the output terminal, adjusting a duty ratio of the oscillating signal according to a rotation speed signal of a motor, and outputting the signal having the adjusted duty ratio as a driving control signal through the output terminal.
Abstract translation: 提供了一种用于产生电机驱动控制信号的装置，该装置包括：产生具有预设占空比的振荡信号的振荡单元; 选择单元，其包括切换连接在所述振荡单元和输出端子之间的第一路径的第一开关和相对于所述第一开关互补操作的第二开关，并且并联连接到所述第一路径的第二路径切换; 以及负载调节单元，安装在第二开关和输出端子之间的第二路径上，根据电动机的转速信号调整振荡信号的占空比，并输出具有调整占空比的信号作为驱动控制 信号通过输出端子。
-
公开(公告)号：US08975844B2
公开(公告)日：2015-03-10
申请号：US13747126
申请日：2013-01-22
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Soo Woong Lee
Abstract: There is provided a motor driving apparatus capable of stably performing operation conversion between a normal mode and a sleep mode by counting a duty of the PWM signal according to a preset clock signal, the motor driving apparatus including: a pulse width modulation (PWM) signal generating unit providing a PWM signal for driving a motor; a driving unit operating normally in a normal mode and waiting for operation in a sleep mode according to a control, and driving the motor in response to the PWM signal of the PWM signal generating unit; and a driving controlling unit counting a duty of the PWM signal according to a preset clock signal to determine an operation mode of the driving unit.
Abstract translation: 提供了一种电动机驱动装置，其能够通过根据预设的时钟信号对PWM信号的占空比进行计数来稳定地执行正常模式和睡眠模式之间的操作转换，所述电动机驱动装置包括：脉宽调制（PWM）信号 提供用于驱动电动机的PWM信号的发电单元; 驱动单元，其以正常模式正常工作，并且根据控制等待在休眠模式下操作，并且响应于PWM信号生成单元的PWM信号驱动所述电动机; 以及驱动控制单元，根据预设的时钟信号对PWM信号的占空比进行计数，以确定驱动单元的操作模式。
-
9.发明授权Circuit of outputting temperature compensation power voltage from variable power and method thereof 有权从可变功率输出温度补偿电源电压的电路及其方法公开(公告)号：US08907653B2
公开(公告)日：2014-12-09
申请号：US13830990
申请日：2013-03-14
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Soo Woong Lee
Abstract: Disclosed herein are a circuit of outputting a temperature compensation power voltage from variable power and a method thereof, the circuit including: a regulator circuit unit converting the variable power into a predetermined voltage desired by a system; a resistance compensation circuit unit provided at an output terminal of the regulator circuit unit, and compensating for a change in resistance value due to the temperature change; and a temperature sensor sensing a change in surrounding temperature of an electronic circuit system employing the regulator circuit unit and supplying an output value corresponding to the sensed temperature change to the resistance compensation circuit unit, to thereby allow the resistance compensation circuit unit to compensate for the change in resistance value due to the temperature change.
Abstract translation: 本发明公开了一种从可变功率输出温度补偿电源电压的电路及其方法，该电路包括：调节器电路单元，将可变功率转换为系统期望的预定电压; 电阻补偿电路单元，设置在调节器电路单元的输出端，并补偿由于温度变化引起的电阻值的变化; 以及温度传感器，其感测采用调节器电路单元的电子电路系统的周围温度变化，并将对应于感测的温度变化的输出值提供给电阻补偿电路单元，从而允许电阻补偿电路单元补偿 由于温度变化导致的电阻值变化。
-
公开(公告)号：US10591697B2
公开(公告)日：2020-03-17
申请号：US15491210
申请日：2017-04-19
Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor： Joo Yul Ko , Joo Hyoung Lee , Jong Woo Lee , Je Hyuk Ryu , Woo Young Choi , Soo Woong Lee , Byung Joo Hong
IPC: G02B7/02 , G02B7/09 , H02P8/00 , H02P6/00 , H02P25/034 , H02P7/02 , H02K41/035
Abstract: A camera module actuator includes, a magnet, a coil, a driver, and a position estimating processor. The coil is disposed to face the magnet. The driver is configured to move the magnet by applying a driving signal to the coil. The position estimating processor is configured to estimate a position of the magnet from an oscillating signal. A frequency of the oscillating signal varies according to a movement of the magnet.
-
-
-
-
-
-
-
-
-
Search Results
29
records
(took 0.019 seconds)
