公开(公告)号：US20110193844A1

公开(公告)日：2011-08-11

申请号：US12899848

申请日：2010-10-07

申请人： Chang-Soo Lee ,  Jong Jae Lee ,  Yunjae Park

发明人： Chang-Soo Lee ,  Jong Jae Lee ,  Yunjae Park

IPC分类号： G09G5/00

CPC分类号： G09G3/3696 ,  G09G3/3614 ,  G09G3/3648 ,  G09G3/3655 ,  G09G2330/04

摘要： A power source circuit of a display apparatus includes a voltage divider, an operational amplifier, a first switch, a second switch, and a protector. The voltage divider generates a divided voltage between a first driving voltage and a ground voltage. The operational amplifier receives the divided voltage and outputs the divided voltage as a second driving voltage. The first switch is connected between a first supply voltage terminal to receive the first driving voltage and a common node. The second switch is connected between the common node and a second supply voltage terminal to receive the ground voltage. The protector is connected to the common node to limit a voltage output of the first supply voltage terminal in response to a voltage of the common node.

摘要翻译： 显示装置的电源电路包括分压器，运算放大器，第一开关，第二开关和保护器。 分压器在第一驱动电压和接地电压之间产生分压。 运算放大器接收分压，并输出分压为第二驱动电压。 第一开关连接在用于接收第一驱动电压的第一电源电压端子和公共节点之间。 第二开关连接在公共节点和第二电源电压端子之间以接收地电压。 保护器连接到公共节点，以响应于公共节点的电压来限制第一电源电压端子的电压输出。

公开(公告)号：US08736593B2

公开(公告)日：2014-05-27

申请号：US12899848

申请日：2010-10-07

申请人： Chang-Soo Lee ,  Jong Jae Lee ,  Yunjae Park

发明人： Chang-Soo Lee ,  Jong Jae Lee ,  Yunjae Park

IPC分类号： G09G5/00

CPC分类号： G09G3/3696 ,  G09G3/3614 ,  G09G3/3648 ,  G09G3/3655 ,  G09G2330/04

摘要： A power source circuit of a display apparatus includes a voltage divider, an operational amplifier, a first switch, a second switch, and a protector. The voltage divider generates a divided voltage between a first driving voltage and a ground voltage. The operational amplifier receives the divided voltage and outputs the divided voltage as a second driving voltage. The first switch is connected between a first supply voltage terminal to receive the first driving voltage and a common node. The second switch is connected between the common node and a second supply voltage terminal to receive the ground voltage. The protector is connected to the common node to limit a voltage output of the first supply voltage terminal in response to a voltage of the common node.

摘要翻译： 显示装置的电源电路包括分压器，运算放大器，第一开关，第二开关和保护器。 分压器在第一驱动电压和接地电压之间产生分压。 运算放大器接收分压，并输出分压为第二驱动电压。 第一开关连接在用于接收第一驱动电压的第一电源电压端子和公共节点之间。 第二开关连接在公共节点和第二电源电压端子之间以接收地电压。 保护器连接到公共节点，以响应于公共节点的电压来限制第一电源电压端子的电压输出。