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热词
    • 32. 发明授权
    • Phase locked loop circuit
    • 锁相环电路
    • US5117204A
    • 1992-05-26
    • US708758
    • 1991-05-31
    • Tadashi EndoYasuhiko SakamotoHaruo Yoshida
    • Tadashi EndoYasuhiko SakamotoHaruo Yoshida
    • H03B9/12H03F3/45H03L7/085H03L7/093H03L7/099H03L7/18
    • H03L7/085H03L7/18
    • By using an EIP source lock counter, a frequency of a Gunn oscillator is stabilized. This increases the frequency stability of a circuit. An oscillation output of the Gunn Oscillator is supplied to the EIP source lock counter, and a phase lock signal indicative of a phase shift of the oscillation frequency from the EIP source lock counter relative to a preset reference frequency is supplied to a driver circuit. The driver circuit includes level shift circuit which level-shifts the phase lock signal thereof. A phase compensation circuit in the driver circuit boosts a gain as well as advances a phase at a high frequency region. The current amplifier circuit amplifies a current amplitude of the output of the level shift circuit, and the amplified output therefrom controls an oscillation frequency of the Gunn oscillator using negative feedback.
    • 通过使用EIP源锁定计数器,Gunn振荡器的频率稳定。 这增加了电路的频率稳定性。 将GUN振荡器的振荡输出提供给EIP源锁定计数器,并且将指示来自EIP源锁定计数器的振荡频率相对于预设参考频率的相位锁定信号提供给驱动器电路。 驱动器电路包括对其锁相信号进行电平移位的电平移位电路。 驱动电路中的相位补偿电路增益增益以及在高频区域前进相位。 电流放大器电路放大电平移位电路的输出的电流幅度,并且其放大的输出使用负反馈来控制耿氏振荡器的振荡频率。