公开(公告)号：US20150062977A1

公开(公告)日：2015-03-05

申请号：US14472425

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

IPC: H02M3/335 ,  G05F3/08

CPC classification number: G05F3/08 ,  H02M1/4258 ,  H02M3/157 ,  H05B33/0815 ,  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, the circuit includes a squarer configured to squire 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 square signal of the input voltage signal 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，电路包括被配置为对从隔离转换器的初级侧电源电压划分的输入电压信号进行调幅的方波器，以及占空比计算器，被配置为计算能量传输到次级侧的占空比 。 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，从输入电压信号的平方信号产生和输出用于控制转换器开关的峰值电流的参考信号。

公开(公告)号：US20150115821A1

公开(公告)日：2015-04-30

申请号：US14163963

申请日：2014-01-24

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Je Hyeon YU ,  Deuk Hee PARK ,  Yun Joong LEE ,  Sang Hyun CHA ,  Chang Seok LEE ,  Hye Jin LEE

IPC: H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/0815 ,  H05B33/0824

Abstract: There is provided a light emitting diode (LED) driver including: a power supplying unit including a dimmer and a rectifying unit and supplying a supply voltage to an LED device; and a control unit acquiring section information regarding the supply voltage and setting an LED on-time based on the section information.

Abstract translation: 提供了一种发光二极管（LED）驱动器，其包括：供电单元，包括调光器和整流单元，并向LED器件提供电源电压; 以及控制单元，基于所述区段信息获取关于所述电源电压的部分信息并且准时地设置LED。

公开(公告)号：US20150002041A1

公开(公告)日：2015-01-01

申请号：US14146229

申请日：2014-01-02

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Yun Joong LEE ,  Je Hyeon YU ,  Chang Seok LEE ,  Chan Woo PARK

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0851

Abstract: Disclosed herein is a voltage control circuit for a dimmer and a dimming method. In accordance with an embodiment, the dimming method using a voltage control circuit for a dimmer includes the steps of determining whether a current voltage value input to a constant dimming range maintainer is equal to a preset minimum or maximum voltage value or exists between the minimum and maximum voltage values, and determining whether the current voltage value is greater than the maximum voltage value when the current voltage value isn't equal to the minimum or maximum voltage value or doesn't exist between the minimum and maximum voltage values. The method further includes the steps of updating the minimum voltage value to the current voltage value when the current voltage value isn't greater than the maximum voltage value, and updating the maximum voltage value to the current voltage value when the current voltage value is greater than the maximum voltage value.

Abstract translation: 本文公开了一种用于调光器和调光方法的电压控制电路。 根据实施例，使用用于调光器的电压控制电路的调光方法包括以下步骤：确定输入到恒定调光范围保持器的当前电压值是否等于预设的最小或最大电压值，或者存在于最小和最小值之间 最大电压值，并且当当前电压值不等于最小或最大电压值或者在最小和最大电压值之间不存在时，确定当前电压值是否大于最大电压值。 该方法还包括当当前电压值不大于最大电压值时将最小电压值更新为当前电压值的步骤，以及当当前电压值较大时将最大电压值更新为当前电压值 超过最大电压值。

公开(公告)号：US20140368119A1

公开(公告)日：2014-12-18

申请号：US14026087

申请日：2013-09-13

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

IPC: H05B33/08

CPC classification number: H05B33/0815

Abstract: There is provide a light emitting diode lighting apparatus capable of being generally used in various kinds of dimmer, the apparatus including: a dimmer varying waveforms of input power according to a dimming signal; a bleeder adjusting a bleeding current under control; a controller comparing a latching current of the dimmer with the bleeding current of the bleeder to control the amount of the bleeding current; and an LED driver receiving a current other than the bleeding current flowing through the bleeder from among the currents from the dimmer to driver a light emitting diode (LED).

Abstract translation: 本发明提供能够广泛应用于各种调光器的发光二极管照明装置，该装置包括：调光器根据调光信号改变输入功率的波形; 调节出血电流的放电器; 控制器将所述调光器的锁存电流与所述泄放器的所述出血电流进行比较，以控制所述出血电流的量; 以及LED驱动器，其从从调光器到驱动器的发光二极管（LED）的电流中接收流过泄流器的渗流电流以外的电流。

公开(公告)号：US20130169182A1

公开(公告)日：2013-07-04

申请号：US13734725

申请日：2013-01-04

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Deuk HEE PARK ,  Yun Joong LEE ,  Sang Hyun CHA ,  Jae Shin LEE ,  Chang Seok LEE

IPC: H02M3/335 ,  H05B37/02

CPC classification number: H02M3/33507 ,  H05B33/0815 ,  H05B37/02 ,  Y02B20/346

Abstract: Disclosed herein are a PWM control circuit, a flyback converter, and a PWM control method. The PWM control circuit includes: a peak storing and reference signal generating unit storing a peak value of one period of a feedback signal from a secondary side output and inverting the peak signal arid outputting the inverted peak signal as a reference signal; and a PWM control signal generating unit generating a PWM control signal by using an output obtained by comparing the reference signal with a reference waveform from the peak storing and reference signal generating unit. In addition, the flyback converter including the same and the method for controlling PWM are proposed.

Abstract translation: 这里公开了PWM控制电路，反激转换器和PWM控制方法。 PWM控制电路包括：峰值存储和参考信号生成单元，存储来自次级侧输出的反馈信号的一个周期的峰值，并且反相输出所述反相峰值信号的峰值信号作为参考信号; 以及PWM控制信号生成单元，通过使用通过将参考信号与来自峰值存储和参考信号生成单元的参考波形进行比较而获得的输出来生成PWM控制信号。 另外，提出了包括相同的反激式转换器和用于控制PWM的方法。

公开(公告)号：US20220210346A1

公开(公告)日：2022-06-30

申请号：US17211312

申请日：2021-03-24

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Chang Seok LEE ,  Joon Hyung LIM ,  Ji Hwan KIM

IPC: H04N5/33 ,  H01L27/146 ,  G01J5/02

Abstract: An infrared image sensor includes: a plurality of reference circuits configured to provide a plurality of reference analog values to a plurality of bolometer cells, respectively; a front-end analog circuit configured to collect a plurality of output analog values according to the plurality of reference analog values; and a noise suppression circuit configured to switch a correspondence between the plurality of bolometer cells and the plurality of reference analog values at unit time intervals.

公开(公告)号：US20220128834A1

公开(公告)日：2022-04-28

申请号：US17192996

申请日：2021-03-05

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Joon Hyung LIM ,  Chang Seok LEE

IPC: G02B27/64 ,  H03B5/12 ,  G02B7/02 ,  G03B5/00 ,  G01D5/22

Abstract: A position sensing circuit that can be used with a position control device including a differential sensing coil unit having a first sensing coil and a second sensing coil disposed to face a conductor disposed on one side of a lens barrel. The position sensing circuit includes: a differential oscillation circuit generating a first oscillation signal having a first amplitude based on a first inductance of the first sensing coil, variable according to positional movement of the conductor, and a second oscillation signal having a second amplitude based on a second inductance of the second sensing coil, variable according to positional movement of the conductor; an amplitude detection circuit detecting the first amplitude of the first oscillation signal and the second amplitude of the second oscillation signal; and a signal processing circuit calculating the first amplitude and the second amplitude to calculate a position value.

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。

公开(公告)号：US20150002045A1

公开(公告)日：2015-01-01

申请号：US14029028

申请日：2013-09-17

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Jong Tae HWANG ,  Sang Hyun CHA ,  Chan Woo PARK ,  Je Hyeon YU ,  Deuk Hee PARK ,  Chang Seok LEE ,  Yun Joong LEE

IPC: H05B33/08

CPC classification number: H05B33/0848 ,  H05B33/0824

Abstract: There are provided a light emitting diode driving apparatus and a light emitting diode lighting apparatus capable of absorbing a noise current generated according to power of a phase control of a dimmer. The light emitting diode lighting apparatus includes: a dimmer controlling a phase of an alternating current (AC) power; a power supplying unit receiving the phase-controlled power from the dimmer and supplying a preset driving power; a driving unit receiving the driving power from the power supplying unit to drive a light emitting diode unit receiving the phase-controlled power; and a noise current absorbing unit suppressing an increase in a voltage level of the driving power supplied to the driving unit by the phase-controlled power.

Abstract translation: 提供了能够吸收根据调光器的相位控制的功率产生的噪声电流的发光二极管驱动装置和发光二极管照明装置。 发光二极管照明装置包括：控制交流（AC）功率相位的调光器; 电源单元，接收来自调光器的相位控制的电力并提供预设的驱动电力; 从所述供电单元接收驱动电力以驱动接收所述相位控制电力的发光二极管单元的驱动单元; 以及噪声电流吸收单元，其抑制通过相位控制电力提供给驱动单元的驱动电力的电压电平的增加。

公开(公告)号：US20190289214A1

公开(公告)日：2019-09-19

申请号：US16170619

申请日：2018-10-25

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Youn Joong LEE ,  Chang Seok LEE ,  Koon Shik CHO ,  Ho Kwon YOON

IPC: H04N5/232 ,  G01D5/245

Abstract: 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.