公开(公告)号：US20150130861A1

公开(公告)日：2015-05-14

申请号：US14325840

申请日：2014-07-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jin-hyung LEE ,  Youn-seung LEE ,  Gil-yong CHANG

IPC: G09G3/34 ,  G09G3/36 ,  G09G3/32 ,  H05B33/08

CPC classification number: H05B33/0815 ,  G09G3/3283 ,  G09G3/3406 ,  H05B33/0812 ,  H05B33/0827 ,  Y02B20/345 ,  Y02B20/347

Abstract: A display apparatus including: a display; a driver including an amplifier configured to detect a current of the display and to generate a constant current control signal, and a transistor configured to adjust the current supplied to the display in accordance an output voltage of the amplifier; and a controller configured to monitor the current of the display and a dropout voltage of the transistor, and control the amplifier so that a pulse width modulation (PWM) duty ratio is decreased in response to the dropout voltage being equal to or higher than a reference voltage.

Abstract translation: 一种显示装置，包括：显示器; 驱动器，其包括被配置为检测所述显示器的电流并产生恒定电流控制信号的放大器，以及晶体管，被配置为根据所述放大器的输出电压调整提供给所述显示器的电流; 以及控制器，其被配置为监视所述显示器的电流和所述晶体管的压差电压，并且控制所述放大器，使得脉冲宽度调制（PWM）占空比响应于所述压差电压等于或高于参考值而减小 电压。

公开(公告)号：US20160315544A1

公开(公告)日：2016-10-27

申请号：US15086881

申请日：2016-03-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung-yong JOO ,  Jin-hyung LEE ,  Moon-young KIM ,  Youn-seung LEE

IPC: H02M3/335 ,  H02M1/08

CPC classification number: H02M3/33523 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A power supply circuit and method for driving an electronic device that operates in a first mode or a second mode is provided. The power supply circuit includes a pulse width modulation (PWM) controller configured to convert an input voltage to an output voltage, and a driving circuit that includes a switching element whose switching state is controlled in accordance with a mode change signal corresponding to the first and second modes. The driving circuit is configured to drive the PWM controller by switching off the switching element and supplying a first voltage to the PWM controller, in response to the mode change signal indicating that the electronic device operates in the first mode. When it is indicated that the electronic device operates in the second mode, the driving circuit switches on the switching element and supplies a second voltage to the PWM controller through the switching element.

Abstract translation: 提供了一种用于驱动以第一模式或第二模式操作的电子设备的电源电路和方法。 电源电路包括被配置为将输入电压转换为输出电压的脉宽调制（PWM）控制器，以及包括开关元件的驱动电路，该开关元件的开关状态根据对应于第一和第二模式改变信号而被控制 第二种模式。 驱动电路被配置为响应于指示电子设备在第一模式下操作的模式改变信号，通过关断开关元件并向PWM控制器提供第一电压来驱动PWM控制器。 当指示电子设备在第二模式下工作时，驱动电路接通开关元件，并通过开关元件向PWM控制器提供第二电压。

公开(公告)号：US20150214137A1

公开(公告)日：2015-07-30

申请号：US14448190

申请日：2014-07-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Youn-seung LEE ,  Jin-hyung LEE ,  Gil-yong CHANG

IPC: H01L23/495 ,  H01L23/31

CPC classification number: H01L23/49524 ,  H01L23/3107 ,  H01L23/49562 ,  H01L23/60 ,  H01L2224/48247 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A semiconductor device is provided. The semiconductor device may include a frame portion on which at least one semiconductor chip is arranged; a plurality of leads electrically connected to the semiconductor chip; and a mold portion formed on the frame portion to surround a part of the frame portion on which the semiconductor chip and the plurality of leads are arranged, wherein a gap between closest portions of the respective leads is at least 2.9 mm.

Abstract translation: 提供半导体器件。 半导体器件可以包括其上布置有至少一个半导体芯片的框架部分; 电连接到半导体芯片的多个引线; 以及形成在框架部分上以围绕其上布置有半导体芯片和多个引线的框架部分的一部分的模具部分，其中各个引线的最近部分之间的间隙为至少2.9mm。