发明名称 |
VERTICAL SWITCHING DEFLECTING DEVICE |
摘要 |
In a switched vertical deflection circuit, two SCR switches couple horizontal retrace pulses to a capacitor. A modulator couples pulse width modulated gating pulses to the SCR's. The SCR's couple to the capacitor successively smaller portions of the horizontal retrace pulses during a first part of the vertical trace interval and successively larger portions during a second part for developing in a vertical deflection winding a sawtooth vertical deflection current. The modulator couples gating pulses to one of the SCR's during the vertical retrace interval for substantially loading the horizontal deflection circuit during the vertical retrace interval for preventing undesired oscillations within the horizontal deflection circuit. |
申请公布号 |
JPS52131414(A) |
申请公布日期 |
1977.11.04 |
申请号 |
JP19770049013 |
申请日期 |
1977.04.26 |
申请人 |
RCA CORP |
发明人 |
PEETA EDOUARUTO HAAFUAARU |
分类号 |
H04N3/16;H03K4/62;H03K4/83;H03K4/92;H03K6/00 |
主分类号 |
H04N3/16 |
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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