发明授权
- 专利标题: Raster distortion correction and deflection circuit arrangement
- 专利标题(中): 栅格失真校正和偏转电路布置
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申请号: US944965申请日: 1997-10-07
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公开(公告)号: US6060845A公开(公告)日: 2000-05-09
- 发明人: Masahisa Tsukahara , Toshimitsu Watanabe , Makoto Kitamura , Takeshi Mochizuki
- 申请人: Masahisa Tsukahara , Toshimitsu Watanabe , Makoto Kitamura , Takeshi Mochizuki
- 申请人地址: JPX Tokyo JPX Kanagawa-ken
- 专利权人: Hitachi, Ltd.,Hitachi Video and Information Systems, Inc.
- 当前专利权人: Hitachi, Ltd.,Hitachi Video and Information Systems, Inc.
- 当前专利权人地址: JPX Tokyo JPX Kanagawa-ken
- 优先权: JPX8-265736 19961007
- 主分类号: H04N3/223
- IPC分类号: H04N3/223 ; H04N3/23 ; H01J29/56 ; H01J29/70
摘要:
A raster distortion correction and deflection circuit arrangement includes a deflection coil adapted to be mounted on a cathode ray tube, a horizontal deflection coil driving circuit for passing a current of saw-tooth waveform of a horizontal deflection period through a horizontal deflection coil constituting the deflection coil, a flyback transformer the primary winding of which is connected between a power supply and an output terminal of the horizontal deflection coil driving circuit, an S-correction capacitor connected in series with the horizontal deflection coil, and an anode voltage detection circuit for detecting variations in an anode voltage of the cathode ray tube which is a secondary winding output of the flyback transformer. A raster distortion correction current based on an output voltage of the anode voltage detection circuit is injected into a connection point of the horizontal deflection coil and the S-correction capacitor. A signal from a signal detection circuit for ABL connected to the flyback transformer can be employed together with an output of the anode voltage detection circuit or in substitution for it for generating the raster distortion correction current.
公开/授权文献
- US4768634A Backdrive overload release clutch 公开/授权日:1988-09-06