首页>
外国专利>
CRT focusing circuit with individually controlled switches developing an approximate parabolic waveform
CRT focusing circuit with individually controlled switches developing an approximate parabolic waveform
展开▼
机译：CRT聚焦电路带有独立控制的开关，可产生近似的抛物线波形
展开▼
页面导航
摘要
著录项
相似文献
摘要
A control means individually turns each switching means on or off so that a current has a waveform which is approximate to a parabolic waveform and is appropriate for focusing current flows in a focusing coil, synchronizing with a horizontal sweep. When the focusing current increases, energy is transferred from the power source to the focusing coil. When the focusing current decreases, energy is returned from the focusing coil to the power source by a flywheel current. Thus, the focusing current is supplied with less consumption.
展开▼
