公开(公告)号：US20150222252A1

公开(公告)日：2015-08-06

申请号：US14546376

申请日：2014-11-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyung-Tae KIM ,  Ji-Woon JUNG ,  In-Suk KIM ,  Jong-Kon BAE ,  Jae-Hyuck WOO ,  Won-Sik KANG ,  Yang-Hyo KIM

IPC: H03K5/003 ,  H03K17/687

CPC classification number: H03K5/003 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0275 ,  G09G2310/0291 ,  H03F3/3022 ,  H03F3/45112 ,  H03F3/45771 ,  H03F2203/45212 ,  H03K17/687

Abstract: Provided are an output buffer circuit having an amplifier offset compensation function and a source driving circuit including the output buffer circuit. The output butler circuit may include a plurality of channel amplifiers, each of which is configured to adjust an amount of current flowing through transistors connected to at least one of a non-inverted input terminal and an inverted input terminal of a differential input unit to compensate an amplifier offset, and adjust buffer input voltage signals to generate output voltage signals.

Abstract translation: 提供具有放大器偏移补偿功能的输出缓冲电路和包括输出缓冲电路的源极驱动电路。 输出管家电路可以包括多个通道放大器，每个通道放大器被配置为调节流过连接到差分输入单元的非反相输入端子和反相输入端子中的至少一个的晶体管的电流量，以补偿 放大器偏置，并调整缓冲器输入电压信号以产生输出电压信号。

公开(公告)号：US20140240208A1

公开(公告)日：2014-08-28

申请号：US14183662

申请日：2014-02-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyung-Tae KIM ,  Ji-Woon JUNG

IPC: H03L5/00 ,  G09G3/36

CPC classification number: H03L5/00 ,  G09G3/3648 ,  G09G3/3677 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2310/0289 ,  H03K3/35613 ,  H03K19/018528

Abstract: A voltage level conversion circuit includes a voltage switch circuit and a level shift circuit. The voltage switch circuit is configured to sequentially output an intermediate voltage and a conversion voltage in response to a switch signal. The level shift circuit is configured to latch a voltage level corresponding to an input signal using the intermediate voltage, and to convert the latched voltage level using the conversion voltage to generate an output signal.

Abstract translation: 电压电平转换电路包括电压开关电路和电平移位电路。 电压开关电路被配置为响应于开关信号顺序地输出中间电压和转换电压。 电平移位电路被配置为使用中间电压来锁存与输入信号相对应的电压电平，并且使用转换电压来转换锁存电压电平以产生输出信号。