公开(公告)号：US20140160806A1

公开(公告)日：2014-06-12

申请号：US13838007

申请日：2013-03-15

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Dae Hoon HAN ,  Jae Shin LEE ,  Seo Hyung KIM ,  Jung Sun KWON ,  Bo Hyun HWANG ,  Joon Youp SUNG

IPC: H02M3/335

CPC classification number: H02M3/33561

Abstract: There is provided a multi-output power supply apparatus capable of maintaining multiple output voltages in a balanced state by limiting a variable range of a switching duty according to a load state. The multi-output power supply apparatus includes: a power supply unit switching input power to output a plurality of voltages whose power levels are determined according to the switching operation; and a controller detecting power states of at least some of the plurality of voltages from the power supply unit, and limiting a range of a switching duty of the power supply unit to a pre-set range when the detected power states correspond to a pre-set limited power state.

Abstract translation: 提供了一种多输出电源装置，其能够通过根据负载状态限制开关占空比的可变范围来将多个输出电压维持在平衡状态。 多输出电源装置包括：电源单元切换输入电力以输出根据切换操作确定功率电平的多个电压; 以及控制器，其检测来自所述电源单元的所述多个电压中的至少一些的电力状态，并且当检测到的电力状态对应于所述电力供应单元时，将所述供电单元的开关占空比的范围限制在预定范围内， 设置有限电源状态。

公开(公告)号：US20200287510A1

公开(公告)日：2020-09-10

申请号：US16456102

申请日：2019-06-28

Applicant: Samsung Electro-Mechanics Co., Ltd.

Inventor： Sang Wook PARK ,  Dae Hee NO ,  Hyun Jun KIM ,  Bo Hyun HWANG ,  Jun Goo WON ,  Da Hye PARK ,  Sung Hwan PARK ,  Ki Joong KIM ,  Yoshiyuki TONAMI

IPC: H03F3/60 ,  H03F1/30 ,  H03F3/21 ,  H03F1/02

Abstract: A bias circuit of an amplifying device including amplifying circuits and a bypass circuit responding to a first control signal, includes a first bias circuit, a second bias circuit, and a compensating circuit. The first bias circuit is configured to supply a first base bias voltage to a first amplifying circuit of the amplifying circuits in response to a second control signal. The second bias circuit is configured to supply a second base bias voltage to a second amplifying circuit of the amplifying circuits in response to a third control signal. The compensating circuit is connected to either one or both of the first bias circuit and the second bias circuit, and configured to vary an impedance in response to a fourth control signal, and compensate for either one or both of the first base bias voltage and the second base bias voltage based on the varied impedance.

公开(公告)号：US20190199303A1

公开(公告)日：2019-06-27

申请号：US16014121

申请日：2018-06-21

Applicant: Samsung Electro-Mechanics Co., Ltd.

Inventor： Bo Hyun HWANG ,  Dae Hee NO ,  Jun Goo WON ,  Ki Joong KIM ,  Sung Hwan PARK ,  Da Hye PARK

IPC: H03F3/24 ,  H03F3/21 ,  H03F1/02

Abstract: A power amplifier circuit includes a bias circuit and an amplifier circuit. The bias circuit includes a first bias circuit to receive a reference voltage and an operation voltage and generate a first bias signal, a bias supply circuit to transmit the base bias signal to a base of a power amplifier, based on the first bias signal input from the first bias circuit , a switching control circuit to transmit a switching signal after a preset delay time based on a driving start signal , and a switching circuit connected between an output node of the first bias circuit and a ground, to operate in an ON state after the delay time in response to the switching signal to form a current path between the output node of the first bias circuit and the ground.

公开(公告)号：US20150002050A1

公开(公告)日：2015-01-01

申请号：US14029386

申请日：2013-09-17

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Dae Hoon HAN ,  Seo Hyung KIM ,  Jung Sun KWON ,  Jung Eui PARK ,  Jin Soo LEE ,  Bo Hyun HWANG

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0824 ,  H05B33/0887

Abstract: There is provided a light emitting diode power supply apparatus capable of limiting a rise in a voltage level of a power supplied to a light emitting diode even in the case in which driving of the light emitting diode is stopped for a long period of time. The light emitting diode power supply apparatus includes: a power supply unit supplying a driving power set under a control to a light emitting diode; and a controlling unit selecting one of a detection voltage obtained by detecting a current flowing to the light emitting diode and a voltage provided according to an operation state of the light emitting diode to control a power supply operation of the power supply unit.

Abstract translation: 提供了一种能够限制提供给发光二极管的电力的电压电平上升的发光二极管电源装置，即使在长时间停止发光二极管的驱动的情况下也是如此。 发光二极管电源装置包括：电源单元，将控制下的驱动功率组提供给发光二极管; 以及控制单元，其选择通过检测流过所述发光二极管的电流而获得的检测电压和根据所述发光二极管的操作状态提供的电压中的一个，以控制所述电源单元的电源操作。

公开(公告)号：US20140139021A1

公开(公告)日：2014-05-22

申请号：US13763956

申请日：2013-02-11

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Dae Hoon HAN ,  Seo Hyung KIM ,  Jae Shin LEE ,  Joon Youp SUNG ,  Bo Hyun HWANG ,  Jung Sun KWON

IPC: H02M3/335

CPC classification number: H02M3/33561 ,  Y10T307/406

Abstract: There is provided a multi-output power supply capable of maintaining power balancing between multiple output powers by fixing a switching duty until a voltage level reaches a predetermined voltage level during an initial stage of a soft-start operation, the multi-output power supply including a power supply unit switching an input power and outputting a plurality of powers having levels determined according to the switching, and a controller controlling a soft switching operation of the power supply unit during an initial operation and fixing a switching duty of the power supply unit to a preset switching duty according to a result of a comparison between a preset reference voltage level and an operating voltage determining whether the soft switching operation is performed or not during the soft switching operation.

Abstract translation: 提供一种多输出电源，其能够通过在软启动操作的初始阶段期间固定开关占空比直到电压电平达到预定电压电平来保持多个输出功率之间的功率平衡，所述多输出电源包括 电源单元切换输入电力并输出具有根据切换确定的电平的多个电力，以及控制器，其在初始操作期间控制电源单元的软开关操作，并将电源单元的开关占空比固定为 根据在软切换操作期间，在预设参考电压电平与确定是否执行软切换操作的操作电压之间的比较的结果的预设开关占空比。

公开(公告)号：US20140139131A1

公开(公告)日：2014-05-22

申请号：US13763985

申请日：2013-02-11

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Jung Eui PARK ,  Seung Kon KONG ,  Seo Hyung KIM ,  Bo Hyun HWANG ,  Jae Shin LEE

IPC: H05B37/02

CPC classification number: H05B33/0818 ,  H05B33/0827 ,  H05B33/0845 ,  Y02B20/347

Abstract: There is provided a light emitting diode driving apparatus, including: a power supplying unit converting input power into driving power according to a control and supplying the converted driving power to a light emitting diode channel; a driving unit controlling current flowing in the light emitting diode channel according to a pulse width modulation (PWM) dimming signal from the outside; and a controlling unit comparing a reference level set by a duty of the PWM dimming signal with a detection voltage level of the light emitting diode channel and controlling a power converting operation of the power supplying unit according to the comparison result.

Abstract translation: 提供了一种发光二极管驱动装置，包括：供电单元，根据控制将输入电力转换为驱动电力，并将转换的驱动功率提供给发光二极管通道; 驱动单元，根据来自外部的脉宽调制（PWM）调光信号控制在所述发光二极管通道中流动的电流; 以及控制单元，将由PWM调光信号的占空比设定的参考电平与发光二极管通道的检测电压电平进行比较，并根据比较结果控制供电单元的功率转换操作。