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公开(公告)号：US20200052621A1
公开(公告)日：2020-02-13
申请号：US16247855
申请日：2019-01-15
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Je Hyeon YU , Youn Joong LEE , Sung Man PANG , Jin KIM , Koon Shik CHO
Abstract: A camera module includes a lens barrel configured to be movable; a detection target disposed on one side of the lens barrel; an integrated coil and a sensing coil facing the detection target and disposed in a direction perpendicular to a direction of movement of the lens barrel; a driver configured to apply a driving signal to the integrated coil; and a position detector configured to detect a position of the lens barrel according to an inductance of the integrated coil and an inductance of the sensing coil, wherein a width of the integrated coil in the direction perpendicular to the direction of movement of the lens barrel and a width of the sensing coil in the direction perpendicular to the direction of movement of the lens barrel change in the direction of movement of the lens barrel.
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公开(公告)号：US20190124265A1
公开(公告)日：2019-04-25
申请号：US16014285
申请日：2018-06-21
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Youn Joong LEE , Sung Man PANG , Jin KIM , Sang Hyun MIN , Ja Hwi CHO , Koon Shik CHO , Je Hyeon YU , Ho Kwon YOON
Abstract: An actuator for a camera module includes two or more detectable elements, the detectable elements are respectively disposed on a first and second surface of a lens barrel, an oscillating element including a first oscillation circuit unit that includes two or more oscillation circuits facing the first surface of the lens barrel, and a second oscillation circuit unit that includes two or more oscillation circuits facing the second surface of the lens barrel, and a determining device that calculates a position of the lens barrel in response to oscillation signals output from the oscillating element. The determining device is configured to calculate the position of the lens barrel based on determined frequencies of oscillation signals of the first oscillation circuit unit and the second oscillation circuit unit.
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13.发明申请CIRCUIT FOR GENERATING REFERENCE SIGNAL FOR CONTROLLING PEAK CURRENT OF CONVERTER SWITCH, ISOLATED CONVERTER AND METHOD FOR GENERATING REFERENCE SIGNAL FOR CONTROLLING PEAK CURRENT OF CONVERTER SWITCH 审中-公开用于产生用于控制转换器开关的峰值电流的参考信号的电路，隔离转换器和用于产生用于控制转换器开关的峰值电流的参考信号的方法公开(公告)号：US20150062978A1
公开(公告)日：2015-03-05
申请号：US14472741
申请日：2014-08-29
Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor： Yun Joong LEE , Deuk Hee PARK , Chan Woo PARK , Jong Tae HWANG , Je Hyeon YU , Soo Hyun MOON , Hye Jin LEE , Chang Seok LEE , Sang Hyun CHA
CPC classification number: H05B33/0815 , H02M1/4258 , H02M2001/0009 , H05B33/0851 , Y02B70/126
Abstract: Embodiments of the invention provide a method and a circuit for generating a reference signal for controlling a peak current of a converter switch. According to at least one embodiment, a dead-zone generator configured to form a dead-zone in an input voltage signal divided from a primary-side supply voltage of an isolated converter, and a duty ratio calculator configured to calculate a duty ratio of energy transfer to a secondary side. The circuit further includes an operator configured to generate and output a reference signal for controlling the peak current of the converter switch from a dead-zone voltage signal having the dead-zone using the duty ratio of energy transfer calculated by the duty ratio calculator.
Abstract translation: 本发明的实施例提供一种用于产生用于控制转换器开关的峰值电流的参考信号的方法和电路。 根据至少一个实施例，一个死区发生器被配置成在与隔离转换器的初级侧电源电压分开的输入电压信号中形成死区，以及占空比计算器，被配置为计算能量的占空比 转移到次级侧。 该电路还包括一个操作器，其被配置为使用由占空比计算器计算的能量传递的占空比来产生和输出用于使用具有死区的死区电压信号来控制转换器开关的峰值电流的参考信号。
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公开(公告)号：US20150002037A1
公开(公告)日：2015-01-01
申请号：US14027491
申请日：2013-09-16
Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor： Sang Hyun CHA , Deuk Hee PARK , Chan Woo PARK , Yun Joong LEE , Jong Tae HWANG , Je Hyeon YU , Soo Hyun MOON , Hye Jin LEE , Chang Seok LEE
IPC: H05B33/08
CPC classification number: H05B33/0824
Abstract: There is provided a light emitting diode driving apparatus charging and discharging a valley fill power by comparing a voltage level of rectified power with a preset reference voltage. The light emitting diode driving apparatus includes a rectifying unit rectifying input AC power, a charging and discharging unit comparing a voltage level of power rectified by the rectifying unit with a preset reference voltage to charge and discharge the rectified power depending on the comparison result, and a driving unit driving a light emitting diode depending on the power rectified by the rectifying unit and a voltage discharged from the charging and discharging unit.
Abstract translation: 提供一种发光二极管驱动装置，通过将整流功率的电压与预设的参考电压进行比较来充电和放电谷值充电功率。 发光二极管驱动装置包括整流单元，对输入的交流电进行整流;充放电单元将由整流单元整流的电压的电平与预设的参考电压进行比较，以根据比较结果对整流功率进行充放电;以及 驱动单元，其根据由整流单元整流的功率和从充放电单元放电的电压来驱动发光二极管。
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公开(公告)号：US20140184077A1
公开(公告)日：2014-07-03
申请号：US13842244
申请日：2013-03-15
Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor： Yun Joong LEE , Jong Tae HWANG , Chan Woo PARK , Je Hyeon YU , Chang Seok LEE
IPC: H05B33/08
CPC classification number: H05B33/083
Abstract: There is provided a light emitting diode (LED) driving apparatus configured such that a waveform of current input to an LED follows a sine wave, the LED driving apparatus including, a switching unit switching an LED unit having a plurality of LEDs receiving rectified power and emitting light, a driving control unit controlling the switching of the switching unit according to a voltage level of the rectified power, a current limiting unit limiting current flowing in the LED unit, and an adjusting unit adjusting current limitation of the current limiting unit according to the voltage level of the rectified power.
Abstract translation: 提供了一种发光二极管（LED）驱动装置，其被配置为使得输入到LED的电流的波形遵循正弦波，该LED驱动装置包括：切换单元，其切换具有接收整流电力的多个LED的LED单元;以及 驱动控制单元，其根据整流电源的电压控制开关单元的切换，限制在LED单元中流动的电流的限流单元，以及调节单元，根据所述调节单元调整限流单元的电流限制 整流电源的电压电平。
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Patent Agency Ranking
公开(公告)号：US20220146852A1
公开(公告)日：2022-05-12
申请号：US17209567
申请日：2021-03-23
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Je Hyeon YU , Ji Hwan KIM , Ja Hwi CHO , Youn Joong LEE , Young Bok YOON
Abstract: A tiltless OIS circuit includes a first signal processing unit generating a first direction-position detection signal and a tilt detection signal based on a first direction-first sensing signal and a first direction-second sensing signal, a control unit generating a first direction position control signal, a tilt control signal, and a second direction position control signal, based on the first direction-position detection signal, the tilt detection signal, and a second direction sensing signal, respectively, a second signal processing unit generating a first direction-first position control signal and a first direction-second position control signal based on the first direction position control signal and the tilt control signal, and a driving unit generating a first direction-first driving signal, a first direction-second driving signal, and a second direction driving signal, based on the first direction-first position control signal, the first direction-second position control signal, and the second direction position control signal, respectively.
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公开(公告)号：US20210223063A1
公开(公告)日：2021-07-22
申请号：US16855172
申请日：2020-04-22
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Je Hyeon YU , Joon Hyung LIM , Ji Buem CHUN , Ji Hwan KIM
Abstract: A position detecting device includes a first hall device and a second hall device; a subtractor to subtract a second hall voltage generated by the second hall device from a first hall voltage generated by the first hall device to generate a subtraction voltage; an adder to add the first hall voltage to the second hall voltage to generate an addition voltage; and a divider to calculate a ratio of the addition voltage to the subtraction voltage in accordance with a charging time of a capacitor using the addition voltage and a discharging time of the capacitor using the subtraction voltage.
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公开(公告)号：US20190324348A1
公开(公告)日：2019-10-24
申请号：US16353415
申请日：2019-03-14
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Sung Man PANG , Youn Joong LEE , Je Hyeon YU , Kwang Mook LEE , Myeung Su KIM , Jin KIM
IPC: G03B5/02 , G02B27/64 , H02K41/035 , H02K11/225 , H02K11/40 , H04N5/232
Abstract: A camera module includes a lens barrel, a driving coil disposed to face a target detection unit prepared on one side of the lens barrel, a driving device configured to provide a driving signal to the driving coil, and a position calculating unit including a first capacitor, configured to provide a ground for an alternating current (AC) signal to the driving coil, a second capacitor, connected to the driving coil to constitute oscillation circuit together with the driving coil, and a position calculating circuit configured to calculate a position of the lens barrel from a frequency of the oscillation circuit.
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公开(公告)号：US20190129133A1
公开(公告)日：2019-05-02
申请号：US16000099
申请日：2018-06-05
Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Inventor： Je Hyeon YU , Sung Man PANG , Youn Joong LEE , Ja Hwi CHO , Jin KIM
Abstract: An actuator including two or more detection targets disposed on a surface and another surface of a lens barrel, respectively, an oscillating unit including a first oscillation circuit unit including two or more oscillation circuits disposed to face the surface and a second oscillation circuit unit including two or more oscillation circuits disposed to face the other surface to output oscillation signals, and a determining unit to calculate a position of the lens barrel from the oscillation signals output from the oscillating unit. A frequency range of an oscillation signal output from any one of the two or more oscillation circuits of the first oscillation circuit unit is different from that of an oscillation signal output from any one of the two or more oscillation circuits of the second oscillation circuit unit.
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公开(公告)号：US20150116013A1
公开(公告)日：2015-04-30
申请号：US14273236
申请日：2014-05-08
Applicant: Samsung Electro-Mechanics Co., Ltd.
Inventor： Je Hyeon YU , Yun Joong LEE , Sang Hyun CHA , Chang Seok LEE , Hye Jin LEE , Deuk Hee PARK
IPC: H03K17/16
CPC classification number: H03K17/162 , H03K2217/0027
Abstract: There is provided an integrated circuit controlling a power supply, the integrated circuit including: an HV pin obtaining startup power; a voltage dividing unit connected to the HV pin; and an input voltage detecting unit detecting an input voltage through voltage distribution by the voltage dividing unit. The integrated circuit may be capable of reducing manufacturing costs by omitting a separate voltage sensing pin.
Abstract translation: 提供控制电源的集成电路，该集成电路包括：获得启动电源的HV引脚; 连接到HV引脚的分压单元; 以及输入电压检测单元，其通过分压单元的电压分布来检测输入电压。 集成电路可以通过省略单独的电压感测引脚来降低制造成本。
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