公开(公告)号：US20160049872A1

公开(公告)日：2016-02-18

申请号：US14611505

申请日：2015-02-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung-Chun PARK

IPC: H02M3/158 ,  G09G3/32 ,  G09G3/20 ,  H02M1/088

CPC classification number: H02M3/158 ,  G09G3/2096 ,  G09G3/3208 ,  G09G2330/02 ,  H02M1/088 ,  H02M3/1582 ,  H02M3/1584 ,  H02M2001/0077 ,  H02M2003/1586

Abstract: A DC-DC converter includes first and second converters. The first converter generates a first power voltage based on a power voltage from an input terminal, and outputs the first power voltage to a first output terminal. The second converter generates a second power voltage based on the input power voltage, and outputs the second power voltage to a second output terminal. The second converter includes a plurality of inverting converters and a controller. The inverting converters generate a check current to check a connection state of an inductor when the inductor is connected. The second power voltage is generated by converting the input power voltage in response to a PWM signal. The controller generates a driving control signal based on the check current to operate a predetermined number of the inverting converters connected to the inductor, and to control the inverting converters based on the driving control signal.

Abstract translation: DC-DC转换器包括第一和第二转换器。 第一转换器基于来自输入端子的电源电压产生第一电源电压，并将第一电源电压输出到第一输出端子。 第二转换器基于输入电源电压产生第二电源电压，并将第二电源电压输出到第二输出端子。 第二转换器包括多个反相转换器和控制器。 当电感器连接时，反相转换器产生检查电流以检查电感器的连接状态。 通过响应于PWM信号转换输入电源电压来产生第二电源电压。 控制器基于检查电流产生驱动控制信号，以操作连接到电感器的预定数量的反相转换器，并且基于驱动控制信号来控制反相转换器。

公开(公告)号：US20160293106A1

公开(公告)日：2016-10-06

申请号：US14837119

申请日：2015-08-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jeong-Min SEO ,  Sung-Chun PARK

IPC: G09G3/32 ,  G09G3/36

CPC classification number: G09G3/20 ,  G09G2330/021 ,  G09G2330/028

Abstract: A power management driver includes a boost converter, a plurality of regulators, a sequence controller, and an operation controller. The boost converter converts an input voltage to a source drive voltage for drive a source driver based on a drive enable signal. The regulators regulate the source drive voltage to generate a plurality of drive voltages. The regulators corresponding to a respective number of predetermined devices. The sequence controller controls the timing for providing the source drive voltage to the source driver. The operation controller adjusts active periods of first and second control signals to control the regulators and the sequence controller.

Abstract translation: 电源管理驱动器包括升压转换器，多个稳压器，序列控制器和操作控制器。 升压转换器基于驱动使能信号将输入电压转换为源驱动电压以驱动源极驱动器。 稳压器调节源极驱动电压以产生多个驱动电压。 对应于相应数量的预定设备的调节器。 序列控制器控制向源驱动器提供源驱动电压的时序。 操作控制器调节第一和第二控制信号的有效期，以控制调节器和顺序控制器。

公开(公告)号：US20160133217A1

公开(公告)日：2016-05-12

申请号：US14698119

申请日：2015-04-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yoon-Young LEE ,  Kwang-Hun KANG ,  Soon-Gi KWON ,  Sung-Chun PARK ,  Jeong-Min SEO

IPC: G09G3/36

CPC classification number: G09G3/20 ,  G09G2330/028

Abstract: A power supply device includes a voltage range selector, a voltage level controller, and a power supply voltage generator. The voltage range selector generates a range selection signal to select a voltage control range. The voltage level controller generates a voltage level control signal based on a driving condition of a display panel. The power supply voltage generator generates a power supply voltage having a voltage level corresponding to the voltage level control signal within the voltage control range, and supplies the power supply voltage to the display panel.

Abstract translation: 电源装置包括电压范围选择器，电压电平控制器和电源电压发生器。 电压范围选择器产生范围选择信号以选择电压控制范围。 电压电平控制器基于显示面板的驱动条件产生电压电平控制信号。 电源电压发生器产生具有与电压控制范围内的电压电平控制信号相对应的电压电平的电源电压，并将电源电压提供给显示面板。

公开(公告)号：US20160117979A1

公开(公告)日：2016-04-28

申请号：US14702918

申请日：2015-05-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Bo-Young AN ,  Sung-Chun PARK

IPC: G09G3/32

CPC classification number: G09G3/3208 ,  G09G2310/08 ,  G09G2330/022 ,  G09G2330/028

Abstract: A display device includes a display panel driver and a DC-DC converter. The display panel driver divides one frame into a plurality of periods and outputs a control signal to generate an analog supply voltage, a first power voltage, and a second power voltage for driving pixels. The DC-DC converter receives the control signal from the display panel driver through a single wire. The DC-DC converter includes an analog supply voltage generator, a first power voltage generator, and a second power voltage generator. The analog supply voltage generator generates the analog supply voltage during a first pulse period. The first power voltage generator generates the first power voltage during a second pulse period. The second power voltage generator generates the second power voltage during the third pulse period.

Abstract translation: 显示装置包括显示面板驱动器和DC-DC转换器。 显示面板驱动器将一帧划分为多个周期，并输出控制信号以产生用于驱动像素的模拟电源电压，第一电源电压和第二电源电压。 DC-DC转换器通过单线接收来自显示面板驱动器的控制信号。 DC-DC转换器包括模拟电源电压发生器，第一电源电压发生器和第二电力电压发生器。 模拟电源电压发生器在第一个脉冲周期内产生模拟电源电压。 第一电源电压发生器在第二脉冲周期期间产生第一电源电压。 第二电源电压发生器在第三脉冲周期期间产生第二电源电压。

公开(公告)号：US20170243530A1

公开(公告)日：2017-08-24

申请号：US15427584

申请日：2017-02-08

Applicant: Samsung Display Co., Ltd.

Inventor： Soon-Gi KWON ,  Sung-Chun PARK

IPC: G09G3/20 ,  H02M3/158

CPC classification number: G09G3/2092 ,  G09G2300/043 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2330/00 ,  G09G2330/028 ,  H02M1/15 ,  H02M3/158 ,  H02M2001/0022

Abstract: A power converter may include the following elements: an input terminal for receiving an input voltage; an output terminal for providing an output voltage; a reference member for receiving a reference voltage; a first transistor electrically connected between the reference member and the input terminal; a second transistor electrically connected between the input terminal and the output terminal; a diode electrically connected in parallel with the second transistor; and a controller for selecting a first mode if the input voltage is greater than a first reference voltage level and for selecting a second mode if the input voltage has been less than a second reference voltage level for a reference time period. The first transistor and the diode may generate the output voltage in the first mode. The first transistor and the second transistor may generate the output voltage in the second mode.

公开(公告)号：US20160014857A1

公开(公告)日：2016-01-14

申请号：US14546161

申请日：2014-11-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung-Chun PARK

IPC: H05B33/08

CPC classification number: H05B33/0896 ,  G09G3/3696 ,  G09G2330/028

Abstract: A power supply circuit has a first voltage converter and a second voltage converter. The first voltage converter generates a first power supply voltage having a first voltage level based on an input voltage. The first power supply voltage drives a first power node of a display in a first mode. The second voltage converter generates a second power supply voltage having a second voltage level based on the input voltage. The second power node is driven by the second power supply voltage in the first mode and is driven by a ground voltage in a second mode.

Abstract translation: 电源电路具有第一电压转换器和第二电压转换器。 第一电压转换器基于输入电压产生具有第一电压电平的第一电源电压。 第一电源电压以第一模式驱动显示器的第一电源节点。 第二电压转换器基于输入电压产生具有第二电压电平的第二电源电压。 第二功率节点由第二模式中的第二电源电压驱动，并以第二模式的接地电压驱动。