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本文介绍一种采用新型检相器的过零相位计,由于采用高速逻辑开关电路和超高速电流开关电路,并采用一种新颖的可消除关开误差的电流减法技术,该相位计可满意地工作在高达50兆赫的频率上。当合理地选择控制信号时,这种检相器的噪声抑制性能将优于一般电路的性能。
This paper presents a zero crossing phase meter with a new phase detector. Due to the use of high speed logic switching circuits and ultra high speed current switching circuits and a novel current subtraction technique that eliminates turn-off errors, the phase meter satisfactorily Working at frequencies up to 50 MHz. The noise immunity of such a phase detector will outperform that of a typical circuit when the control signal is reasonably chosen.