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公开(公告)号:US3665500A
公开(公告)日:1972-05-23
申请号:US3665500D
申请日:1970-04-01
申请人: SLI IND
发明人: LEWIS MARTYN A , DOMIN SIEGFRIED
CPC分类号: G05D3/1445 , G11B5/022 , G11B5/5547
摘要: Apparatus selectively and automatically operable in either a linear or a pulse-width modulation mode. A controlled feedback loop in a basically linear system is automatically closed in response to threshold conditions of particular parameters of a moving inductance type load, the loop providing positive feedback in a range of frequencies determined by the phase shift characteristics of the load and additional phase shift circuits. The positive feedback results in a controlled oscillatory condition producing a pulse-width modulation mode for the system.
摘要翻译: 设备以线性或脉冲宽度调制方式选择性地和自动地操作。 响应于运动电感型负载的特定参数的阈值条件,基本线性系统中的受控反馈回路自动关闭,该回路在由负载的相移特性和附加相移确定的频率范围内提供正反馈 电路。 正反馈导致产生用于该系统的脉冲宽度调制模式的受控振荡条件。