发明名称 |
Resonant degaussing without residual magnetism |
摘要 |
A resonant degaussing circuit provides rapid recovery for use with computer monitors or video display apparatus where frequent movement of the display apparatus occurs. The degaussing circuit comprises a capacitor in parallel with a degaussing coil. Triggering of an SCR causes the capacitor to discharge, so that it resonates with the degaussing coil to produce the desired AC degaussing current. The SCR is triggered only when the vertical deflection current is substantially zero, in order to eliminate interference of the vertical flux with the degaussing current.
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申请公布号 |
US4535270(A) |
申请公布日期 |
1985.08.13 |
申请号 |
US19830553007 |
申请日期 |
1983.11.17 |
申请人 |
RCA CORPORATION |
发明人 |
FRANTZ, KEITH R.;BARNES, ROBERT A.;MARKS, BRUCE G. |
分类号 |
H04N9/29;(IPC1-7):H01J29/06 |
主分类号 |
H04N9/29 |
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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