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公开(公告)号：US3806862A
公开(公告)日：1974-04-23
申请号：US19895171
申请日：1971-11-15
Applicant: BENDIX CORP
Inventor： CHAO A
Abstract: A power amplifier configuration is described which operates in a quasi-switching mode with a clipped sinusoidal output which produces efficiencies substantially higher than expected with linear Class B operation or square wave switching operation when used in a narrow band application. This is achieved through precise control of the duration of peak saturation to produce a maximum of the fundamental frequency component of the output power. The amplifier thus controlled is defined as operating in the forced saturation mode and may alternately produce either essentially constant power or constant voltage output with respect to load variations within its narrow operating frequency band. The amplifier also retains a capability as a linear amplifier at reduced power levels. Several amplifier embodiments are described, all of which utilize the above operating concepts.
Abstract translation: 描述了功率放大器配置，其在具有限幅正弦输出的准开关模式下工作，其在窄带应用中使用时产生比线性B类操作或方波切换操作显着高于预期的效率。 这是通过精确控制峰值饱和的持续时间来实现的，以产生输出功率的基频分量的最大值。 由此控制的放大器被定义为在强制饱和模式下工作，并且可以相对于其窄工作频带内的负载变化交替产生基本上恒定的功率或恒定电压输出。 该放大器还保留了作为线性放大器功能降低的能力。 描述了几个放大器实施例，所有这些实施例都利用上述操作概念。
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公开(公告)号：US3828261A
公开(公告)日：1974-08-06
申请号：US31942472
申请日：1972-12-29
Applicant: BENDIX CORP
Abstract: In a compass display system, a compass follower for insuring that true north is always at the top of the display. Solid state equipment is provided for correlating the compass outputs with a reference signal and for operating on the correlated output in a phase locked loop. An auxiliary loop is provided in which the compass follower output is phase locked to an external reference to render said output independent of compass excitation.
Abstract translation: 在指南针显示系统中，用于确保真正北部的指南针跟随器始终处于显示器的顶部。 提供固态设备用于将罗盘输出与参考信号相关联，并用于在锁相环中的相关输出上进行操作。 提供一个辅助回路，其中罗盘跟随器输出被锁定到外部参考，以使得所述输出独立于罗盘激励。
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