基本信息:
- 专利标题： 差分AB类放大器电路、驱动器电路以及显示装置
- 专利标题（英）：Differential class AB amplifier circuit, driver circuit and display device
- 申请号：CN201010221374.8 申请日：2010-06-30
- 公开(公告)号：CN101951233A 公开(公告)日：2011-01-19
- 发明人： 久野晴彦
- 申请人： 瑞萨电子株式会社
- 申请人地址： 日本神奈川县
- 专利权人： 瑞萨电子株式会社
- 当前专利权人： 瑞萨电子株式会社
- 当前专利权人地址： 日本神奈川县
- 代理机构： 中原信达知识产权代理有限责任公司
- 代理人： 孙志湧; 穆德骏
- 优先权： 2009-162827 2009.07.09 JP
- 主分类号： H03F3/45
- IPC分类号： H03F3/45 ; G09G3/20 ; G09G3/36
The invention relates to a differential class AB amplifier circuit, a driver circuit and a display device. The driver circuit of the present invention comprises a differential class AB amplifier circuit which comprises: a first differential amplifier circuit configured to amplify differential input signals and output a first signal in a first voltage range; a second differential amplifier circuit configured to amplify the differential input signals and output a second signal in a second voltage range; and a class AB output circuit configured to input the first and the second signals as differential signals and amplify the differential signals, wherein the class AB output circuit comprises: a phase compensating capacitance section; and a current buffer circuit configured to control a current flowing through the phase compensating capacitance section.