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热词
    • 10. 发明授权
    • High voltage generating circuit
    • 高压发生电路
    • US4041355A
    • 1977-08-09
    • US623107
    • 1975-10-16
    • Toshio Onodera
    • Toshio Onodera
    • H01F38/42H04N3/18H01J29/70
    • H01F38/42H04N3/18H01F2038/426
    • A high voltage generating circuit for a television receiver which includes a horizontal oscillator and a switching circuit operating at the horizontal sweep frequency of the television receiver and being coupled to a flyback transformer which has an input resonant frequency in the vicinity of but higher than the horizontal oscillator frequency. The output of the flyback transformer is coupled to a rectifier circuit which in turn is coupled to the high voltage anode of the television receiver. The flyback transformer also has an input resonant circuit which includes a capacitor which is serially connected to the primary winding of the flyback transformer. This series resonant circuit is resonant at a frequency in the vicinity but less than the frequency of the horizontal oscillator with the result that improved voltage regulation is obtained while avoiding excess high voltage which otherwise would be caused by a shift in the output frequency of the horizontal oscillator.
    • 一种用于电视接收机的高电压发生电路,包括水平振荡器和在电视接收机的水平扫频频率下工作的开关电路,并且耦合到具有在水平附近但高于水平的输入谐振频率的回扫变压器 振荡器频率。 回扫变压器的输出耦合到整流电路,该整流电路又耦合到电视接收机的高压阳极。 回扫变压器还具有输入谐振电路,其包括串联连接到回扫变压器的初级绕组的电容器。 该串联谐振电路在附近的频率处谐振,但是小于水平振荡器的频率,结果是获得改善的电压调节,同时避免过高的高电压,否则将由水平的输出频率的偏移引起 振荡器