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：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：US20150318779A1

公开(公告)日：2015-11-05

申请号：US14694040

申请日：2015-04-23

Applicant: Samsung Electro-Mechanics Co., Ltd. ,  University of Seoul Industry Cooperation Foundation

Inventor： Sang Hyun CHA ,  Soo Hyun MOON ,  Hye Jin LEE ,  Joong Ho CHOI ,  Ji Hwan KIM ,  Chang Seok LEE ,  Yun Joong LEE

IPC: H02M1/36 ,  H02M3/335

CPC classification number: H02M1/36 ,  H02M3/335 ,  H02M3/33507 ,  H02M2001/0006

Abstract: Disclosed herein are a start-up circuit capable of reducing a leakage current to reduce power consumption, and a power device using the same. The start-up circuit includes: a bias unit connected between a first power source and a second power source and allowing a first current to flow from the first power source to the second power source according to a predetermined voltage; a first start unit connected to the bias unit and driving a second current to apply the predetermined voltage to the bias unit, and stopping driving the second current when a voltage received from the second power source reaches a first voltage; and a second start unit connected to the bias unit and driving a third current, the predetermined voltage being applied to the bias unit by the third current, and stopping driving the third current upon receiving a stop signal.

Abstract translation: 这里公开了能够减少泄漏电流以降低功耗的启动电路，以及使用该启动电路的功率器件。 启动电路包括：偏置单元，连接在第一电源和第二电源之间，并允许第一电流根据预定电压从第一电源流动到第二电源; 连接到所述偏置单元并驱动第二电流以将所述预定电压施加到所述偏置单元的第一启动单元，以及当从所述第二电源接收的电压达到第一电压时停止驱动所述第二电流; 以及第二起动单元，连接到所述偏置单元并驱动第三电流，所述预定电压通过所述第三电流施加到所述偏置单元，并且在接收到停止信号时停止驱动所述第三电流。

公开(公告)号：US20150173149A1

公开(公告)日：2015-06-18

申请号：US14294878

申请日：2014-06-03

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

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

IPC: H05B33/08

CPC classification number: H05B33/0851 ,  H05B33/0824

Abstract: There are provided a light emitting diode (LED) driving apparatus and an LED lighting apparatus, in which a common detection resistor detecting a current flowing in each LED is used. According to exemplary embodiments of the present disclosure, manufacturing costs and a circuit area may be reduced by commonly using a common detection resistor detecting a current flowing in each of the LEDs.

Abstract translation: 提供了一种发光二极管（LED）驱动装置和LED照明装置，其中使用检测在每个LED中流动的电流的公共检测电阻器。 根据本公开的示例性实施例，可以通过共同使用检测在每个LED中流动的电流的公共检测电阻来降低制造成本和电路面积。

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

IPC: H02M1/42 ,  H05B33/08 ,  H02M3/335

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。

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。

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：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。