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。