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1. 发明授权

US4163177A Oscillation generator providing oscillations of varying amplitude 失效
标题翻译：振荡发生器提供振幅变化
公开(公告)号：US4163177A
公开(公告)日：1979-07-31
申请号：US842490
申请日：1977-10-17
申请人： Arthur R. Warner , Derrick A. Ward
发明人： Arthur R. Warner , Derrick A. Ward
IPC分类号： H02M7/5383 , H02M7/53846 , H02M7/53862 , H05B41/288 , H05B37/02 , H03B3/02
CPC分类号： H02M7/53862 , H02M7/53846 , H05B41/2885 , Y02B20/202
摘要： An oscillation generator providing a succession of oscillations repetitively and progressively varying in amplitude includes a feedback oscillator arranged to receive its operating voltage from a capacitor that is progressively charged from a periodically fluctuating voltage source by way of an SCR and a timing circuit arranged to progressively vary the timing during the fluctuation period of the source of firing signals applied to the SCR. The timing circuit includes a firing capacitor charged from a unidirectional source and semiconductor switches arranged, when the potential on the firing capacitor attains a predetermined level, to discharge the capacitor into the trigger electrode of the SCR. The time required for the potential on the firing capacitor to reach the predetermined level is varied by a saw-tooth generator that controls the charging potential for the capacitor. The oscillator output may be applied directly to energize an electric discharge tube, or may be applied to a power amplifier fed from a constant source, that in turn energizes a discharge tube.
摘要翻译：提供重复并逐渐变化的振荡的振荡发生器包括：反馈振荡器，被布置成从电容器接收其工作电压，该电容器通过SCR和周期性波动的电压源逐渐充电，定时电路被布置为逐渐变化在施加到SCR的点火信号源的波动期间的定时。定时电路包括从单向源充电的点火电容器和当触发电容器上的电位达到预定电平时将半导体开关布置成将电容器放电到SCR的触发电极中。触发电容器上的电位达到预定电平所需的时间由控制电容器的充电电位的锯齿发电机改变。可以直接施加振荡器输出以激励放电管，或者可以将其施加到从恒定源馈送的功率放大器，其进而激励放电管。

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