发明名称 |
Circuit and method for compensating for fluctuations in high voltage of fly back transformer for semiwide-screen television receiver |
摘要 |
A picture stabilizing circuit for a semiwide-screen television receiver capable of preventing vertical lines of the picture from being bent by detecting and compensating for a high-voltage variation caused by a picture brightness variation. In a picture stabilizing circuit for a semiwide-screen television receiver including a high voltage circuit for providing a high voltage induced in a secondary winding of a flyback transformer to an anode of a cathode ray tube, and a horizontal output device for controlling a deflection current using a voltage applied to a primary winding of the flyback transformer as its supply voltage and compensating for the deflection current in accordance with an east/west (E/W) signal, the picture stabilizing circuit comprising: a detecting device for detecting variation of the high voltage in the secondary winding of the flyback transformer and for outputting a signal corresponding to the variation of the high voltage; and an adder for adding the output signal of the detecting device to the E/W signal.
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申请公布号 |
US5920157(A) |
申请公布日期 |
1999.07.06 |
申请号 |
US19970961129 |
申请日期 |
1997.10.30 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
SHIN, KIL-HO;YANG, YE-MOK |
分类号 |
H04N3/18;H04N3/223;H04N3/23;H04N3/233;H04N3/27;H04N5/44;H04N5/52;(IPC1-7):H04N3/223;H04N3/185 |
主分类号 |
H04N3/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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