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Phase locked loop design with diode for loop filter capacitance leakage current control
Phase locked loop design with diode for loop filter capacitance leakage current control
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机译:带二极管的锁相环设计,用于环路滤波器电容泄漏电流控制
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摘要
A phase locked loop design uses a diode operatively connected to a loop filter capacitor to control a leakage current of the loop filter capacitor. By positioning a diode in series with the loop filter capacitor, a voltage potential across the loop filter capacitor is reduced, thereby reducing the leakage current of the loop filter capacitor. Moreover, the leakage current of the loop filter capacitor is controlled in that it cannot exceed the current through the diode. Control and reduction of the loop filter capacitor leakage current leads to more reliable and stable phase locked loop behavior.
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