公开(公告)号：US20170039981A1

公开(公告)日：2017-02-09

申请号：US15063847

申请日：2016-03-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JUN-HO HWANG ,  HO-IN KIM ,  SHIM-HO YI

IPC: G09G3/36 ,  H02M3/07

CPC classification number: G09G3/3696 ,  G09G3/3611 ,  G09G2300/0426 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2330/02

Abstract: A boosting voltage generator includes a switching circuit, a control circuit and a boosting circuit. The switching circuit is connected to a first input terminal receiving a first frame signal and a second input terminal receiving a second frame signal, and generates a first switching signal and a second switching signal based on a voltage at the first input terminal and a voltage at the second input terminal. The second frame signal has a phase opposite to that of the first frame signal. The control circuit is connected to the first and second input terminals, and selectively connects the first and second input terminals with a ground voltage based on a mode selection signal. The boosting circuit generates a first boosting voltage and a second boosting voltage based on the first switching signal, the second switching signal, a first feedback voltage and a second feedback voltage.

Abstract translation: 升压电压发生器包括开关电路，控制电路和升压电路。 开关电路连接到接收第一帧信号的第一输入端子和接收第二帧信号的第二输入端子，并且基于第一输入端子处的电压和第一输入端子的电压产生第一开关信号和第二开关信号 第二输入端。 第二帧信号具有与第一帧信号的相位相反的相位。 控制电路连接到第一和第二输入端子，并且基于模式选择信号选择性地将第一和第二输入端子与接地电压连接。 升压电路基于第一开关信号，第二开关信号，第一反馈电压和第二反馈电压产生第一升压电压和第二升压电压。