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1. 发明授权

US11036026B2 Apparatus and method controlling position of camera module with a single coil 有权
公开(公告)号：US11036026B2
公开(公告)日：2021-06-15
申请号：US16035968
申请日：2018-07-16
申请人： Samsung Electro-Mechanics Co., Ltd.
发明人： Sung Man Pang , Youn Joong Lee , Ja Hwi Cho , Je Hyeon Yu , Jin Kim
IPC分类号： G02B7/08 , H04N5/232 , H04N5/225 , G03B5/00 , G03B13/36 , G02B27/64
摘要： An apparatus controlling a position of a camera module includes an operating coil disposed on a housing of the camera module to face a magnetic member disposed on a lens barrel of the camera module, a driving circuit providing a driving current to the operating coil, a capacitor circuit having a capacitor value to form a resonance circuit together with the operating coil to resonate at a resonance frequency varied depending on an inductance value of the operating coil; a resonance maintaining circuit maintaining a level of a resonance signal generated by the operating coil and the capacitor circuit, a resonance frequency detecting circuit detecting a resonance frequency signal from the resonance signal generated by the operating coil and the capacitor circuit, and a control circuit configured to control the driving circuit in response to the resonance frequency signal from the resonance frequency detecting circuit.

2. 发明授权

US10547249B2 Bridge circuit and rectifier including the same 有权
公开(公告)号：US10547249B2
公开(公告)日：2020-01-28
申请号：US15708775
申请日：2017-09-19
申请人： Samsung Electro-Mechanics Co., Ltd.
发明人： Youn Joong Lee , Koon Shik Cho , Ho Kwon Yoon
IPC分类号： H02M7/219 , H02M1/08 , H02M1/088 , H02M1/00
摘要： A bridge circuit includes: a first leg including a first switching device and a second switching device connected between a first node and a ground; a second leg including a third switching device and a fourth switching device connected between the first node and the ground; and a first charge recycler connected between a gate of the first switching device and a gate of the third switching device, and configured to transfer charges accumulated in the first switching device to the gate of the third switching device prior to turning on the third switching device.

3. 发明申请

US20140001980A1 CIRCUIT AND METHOD FOR DRIVING LED LIGHT 审中-公开
标题翻译：用于驱动LED灯的电路和方法
公开(公告)号：US20140001980A1
公开(公告)日：2014-01-02
申请号：US13929737
申请日：2013-06-27
申请人： Samsung Electro-Mechanics Co., Ltd.
发明人： Deuk Hee Park , Sang Hyun Cha , Youn Joong Lee , Chang Seok Lee
IPC分类号： H05B33/08
CPC分类号： H05B33/0845
摘要： Disclosed herein are a circuit and a method for driving LED light. There is provided a circuit for driving LED light, including: a dimming block comparing line voltage supplied to the LED light with reference voltage to output a peak value of voltage charged according to a comparison signal as a first reference signal; a reference signal generation block comparing the first reference signal output from the dimming block with a peak value of sensing voltage sensing current of an LED driving switch to amplify an error and multiplying the line voltage by the error amplified signal so as to be output as a second reference signal; and a PWM control block comparing the second reference signal output from the reference signal generation block with the sensing voltage to output a PWM signal with controlled duty. In addition, a method for driving LED light is proposed.
摘要翻译：本文公开了用于驱动LED光的电路和方法。提供了一种用于驱动LED灯的电路，包括：将提供给LED灯的线电压与参考电压进行比较的调光块，以根据比较信号输出充电电压的峰值作为第一参考信号; 参考信号生成块，将从调光块输出的第一参考信号与LED驱动开关的感测电压感测电流的峰值进行比较，以放大误差，并将线电压乘以误差放大信号，以输出为第二参考信号; 以及PWM控制块，将从参考信号生成块输出的第二参考信号与感测电压进行比较，以输出具有受控占空比的PWM信号。另外，提出了一种用于驱动LED灯的方法。

4. 发明授权

US11997385B2 Tiltless optical image stabilization (OIS) circuit and OIS device 有权
公开(公告)号：US11997385B2
公开(公告)日：2024-05-28
申请号：US17209567
申请日：2021-03-23
申请人： Samsung Electro-Mechanics Co., Ltd.
发明人： Je Hyeon Yu , Ji Hwan Kim , Ja Hwi Cho , Youn Joong Lee , Young Bok Yoon
IPC分类号： H04N23/68 , G02B27/64 , G03B5/00
CPC分类号： H04N23/68 , G02B27/644 , G03B5/00 , H04N23/6812 , H04N23/687 , G03B2205/0015 , G03B2217/005
摘要： 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.

5. 发明授权

US10757334B2 Actuator of camera module 有权
公开(公告)号：US10757334B2
公开(公告)日：2020-08-25
申请号：US16170619
申请日：2018-10-25
申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD.
发明人： Youn Joong Lee , Chang Seok Lee , Koon Shik Cho , Ho Kwon Yoon
IPC分类号： H04N5/232 , G01D5/245
摘要： An actuator of a camera module includes a driving coil disposed to face a detection target; a driving circuit including a plurality of transistors connected to the driving coil; and a processor configured to provide a respective gate control signal to a gate of each of the plurality of transistors, and detect a displacement of the detection target based on a component of an oscillation signal generated in a driving signal applied to the driving coil in response to an operation of any one of the plurality of transistors being switched by the respective gate control signal.

6. 发明授权

US08816589B2 Light emitting diode driving apparatus 有权
标题翻译：发光二极管驱动装置
公开(公告)号：US08816589B2
公开(公告)日：2014-08-26
申请号：US13721365
申请日：2012-12-20
申请人： Samsung Electro-Mechanics Co., Ltd.
发明人： Youn Joong Lee , Deuk Hee Park , Sang Hyun Cha , Jae Shin Lee , Chang Seok Lee
IPC分类号： H05B37/02
CPC分类号： H05B37/02 , H05B33/083
摘要： Provided is an LED driving apparatus. The LED driving apparatus includes a plurality of LED groups each comprising one or more diodes, a switch group comprising a plurality of switch units connected respectively to the LED groups to drive the connected LED group when a control signal is activated, and a switch controlling unit configured to compare an input voltage of the LED groups with an output voltage of the LED groups, calculate a comparison value, and generate the control signal according to the comparison value. Accordingly, the LED driving apparatus drives the LED groups selectively according to the difference between the input voltage of the LED group and the output voltage of the LED group, thereby overcoming the problem of heat generation by forward voltage distribution.
摘要翻译：提供了LED驱动装置。 LED驱动装置包括多个LED组，每个LED组包括一个或多个二极管，开关组包括分别连接到LED组的多个开关单元，以在控制信号被激活时驱动所连接的LED组;以及开关控制单元配置为将LED组的输入电压与LED组的输出电压进行比较，计算比较值，并根据比较值生成控制信号。因此，LED驱动装置根据LED组的输入电压和LED组的输出电压之间的差异选择性地驱动LED组，从而克服了通过正向电压分配发热的问题。

7. 发明申请

US20140003098A1 PWM CONTROL CIRCUIT FOR DC-DC CONVERTER, FLYBACK CONVERTER, AND METHOD OF CONTROLLING PWM OF DC-DC CONVERTER 审中-公开
标题翻译：用于直流 - 直流转换器，变频器的PWM控制电路和控制直流 - 直流转换器PWM的方法
公开(公告)号：US20140003098A1
公开(公告)日：2014-01-02
申请号：US13927053
申请日：2013-06-25
申请人： Samsung Electro-Mechanics Co., Ltd.
发明人： Deuk Hee Park , Sang Hyun Cha , Youn Joong Lee , Chang Seok Lee
IPC分类号： H02M3/335
CPC分类号： H02M3/33507
摘要： Provided is a PWM control circuit for a DC-DC converter, flyback converter and a method of controlling a PWM of a DC-DC converter. The PWM control circuit for the DC-DC converter includes a current sensing unit configured to sense a primary-side current, a zero-current detecting unit configured to detect a zero-current from a secondary-side auxiliary winding, a time calculating unit configured to receive a main switch control signal and an output signal of the zero-current detecting unit to calculate a time from an OFF point of a main switch to a point that the secondary-side current becomes zero, and a control unit configured to receive an output signal of the current sensing unit and time information produced by the time calculating unit to calculate a secondary-side output voltage and perform PWM control with respect to the main switch according to the calculated secondary-side output voltage.
摘要翻译：提供了一种用于DC-DC转换器的PWM控制电路，反激转换器和控制DC-DC转换器的PWM的方法。用于DC-DC转换器的PWM控制电路包括：电流感测单元，被配置为感测初级侧电流;零电流检测单元，被配置为检测来自次级侧辅助绕组的零电流;时间计算单元配置以接收主开关控制信号和零电流检测单元的输出信号，以计算从主开关的OFF点到次级侧电流变为零的点的时间;以及控制单元，被配置为接收电流感测单元的输出信号和由时间计算单元产生的时间信息，以计算次级侧输出电压，并根据所计算的次级侧输出电压对主开关执行PWM控制。

8. 发明申请

US20140001958A1 CIRCUIT, DEVICE AND METHOD OF DIRECTLY DRIVING LED 审中-公开
标题翻译：电路，设备及其直接驱动方法
公开(公告)号：US20140001958A1
公开(公告)日：2014-01-02
申请号：US13927049
申请日：2013-06-25
申请人： Samsung Electro-Mechanics Co., Ltd.
发明人： Deuk Hee Park , Sang Hyun Cha , Youn Joong Lee , Chang Seok Lee , Jae Shin Lee
IPC分类号： H05B33/08
CPC分类号： H05B33/0851 , H05B33/083
摘要： Provided is a circuit, a device and a method of direct-driving an LED. According to an embodiment, the LED direct-driving circuit includes an LED unit having a plurality of LED groups serially connected to each other, a switching unit including a plurality of switches respectively connected to the plurality of LED groups, each switch configured to emit light from at least one LED group serially connected to the switch according to an ON operation, and a switching control unit configured to compare a signal according to a line voltage sensed from an input voltage of the LED unit with an output voltage of the LED unit to calculate a comparison value, generate a PWM carrier signal having a frequency varied according to the line voltage, and output a control signal for controlling the switching unit by comparing the comparison value with the frequency-varied PWM carrier signal.
摘要翻译：提供一种直接驱动LED的电路，装置和方法。根据实施例，LED直接驱动电路包括具有彼此串联连接的多个LED组的LED单元，包括分别连接到多个LED组的多个开关的开关单元，每个开关被配置为发光从根据ON操作串行连接到开关的至少一个LED组，以及开关控制单元，被配置为将根据LED单元的输入电压感测的线电压的信号与LED单元的输出电压进行比较，计算比较值，产生具有根据线路电压变化的频率的PWM载波信号，并且通过将比较值与频率变化的PWM载波信号进行比较来输出用于控制切换单元的控制信号。

9. 发明授权

US11977240B2 Apparatus for controlling lens module and reducing offset of Hall sensor 有权
公开(公告)号：US11977240B2
公开(公告)日：2024-05-07
申请号：US17166406
申请日：2021-02-03
申请人： Samsung Electro-Mechanics Co., Ltd.
发明人： Ji Hwan Kim , Koon Shik Cho , Youn Joong Lee
IPC分类号： G01D5/14 , G02B27/64 , H03F3/45 , H03M1/12
CPC分类号： G02B27/646 , G01D5/145 , H03F3/45475 , H03M1/12
摘要： An apparatus configured to reduce an offset of a Hall sensor includes a voltage-current conversion circuit and a current mirror circuit. The voltage-current conversion circuit is configured to generate a current configured to decrease when a voltage of an input terminal to which a bias current of a Hall sensor is input increases and increase when the voltage of the input terminal decreases. The current mirror circuit has a current mirror structure configured to feedback the bias current based on the current generated by the voltage-current conversion circuit.

10. 发明授权

US10840835B2 Camera module 有权
公开(公告)号：US10840835B2
公开(公告)日：2020-11-17
申请号：US16247855
申请日：2019-01-15
申请人： Samsung Electro-Mechanics Co., Ltd.
发明人： Je Hyeon Yu , Youn Joong Lee , Sung Man Pang , Jin Kim , Koon Shik Cho
IPC分类号： H02P6/185 , G01D5/20 , G03B13/36 , H04N5/225
CPC分类号： H02P6/185 , G03B13/36 , H04N5/2253 , G01D5/2066 , G03B2205/0069
摘要： 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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