发明申请
US20050184977A1 Capacitive load drive circuit, method for driving the same, and plasma display apparatus
审中-公开
电容负载驱动电路,其驱动方法以及等离子体显示装置
- 专利标题: Capacitive load drive circuit, method for driving the same, and plasma display apparatus
- 专利标题(中): 电容负载驱动电路,其驱动方法以及等离子体显示装置
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申请号: US10989463申请日: 2004-11-17
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公开(公告)号: US20050184977A1公开(公告)日: 2005-08-25
- 发明人: Katsumi Itoh , Tomokatsu Kishi , Shigetoshi Tomio , Tetsuya Sakamoto , Isao Furukawa
- 申请人: Katsumi Itoh , Tomokatsu Kishi , Shigetoshi Tomio , Tetsuya Sakamoto , Isao Furukawa
- 申请人地址: JP Kawasaki
- 专利权人: Fujitsu Hitachi Plasma Display Limited
- 当前专利权人: Fujitsu Hitachi Plasma Display Limited
- 当前专利权人地址: JP Kawasaki
- 优先权: JP2004-044598 20040220
- 主分类号: H04N5/66
- IPC分类号: H04N5/66 ; G09G3/20 ; G09G3/288 ; G09G3/291 ; G09G3/294 ; G09G3/296 ; G09G3/298 ; G09G3/299 ; G09G5/00
摘要:
A capacitive load drive circuit that has reduced power consumption due to residual carriers, and a PDP apparatus using the same, have been disclosed. In the drive circuit, the power consumption due to the residual carriers, which are formed when a diode provided in parallel to a switch circuit of the capacitive load drive circuit is brought into conduction, is reduced and the switch circuit connected in parallel to the diode is brought into conduction during a period of time from when the diode is brought into conduction until when the potential of a terminal to which the diode is connected changes. By bringing the switch circuit connected in parallel into conduction, a closed circuit is formed by the diode and the switch circuit and the residual carriers formed in the diode are reduced. The voltage of the closed circuit is substantially zero V and, therefore, power consumption is very small even if a current due to the residual carriers flows through the closed circuit.
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