Open Access Open Access  Restricted Access Subscription or Fee Access

Design of Digital Frequency Sensitive Phase Detector and study its Phase Response

E.N. Ganesh

Abstract


In this paper, a digital frequency sensitive phase detector (PD) with voltage controlled phase response is presented. This scheme is based on classical type flip-flop phase detectors and an improved PD operating on both edges of the input sequence. Phase-to-voltage response characteristic control is accomplished by the additional feedback of the low-pass filter output voltage to reset the control pin input. In this paper, we have presented a simulated frequency sensitive phase detector circuit and showed an improved phase-voltage response with control over its characteristics. The output signal of the phase detector is controlled by a digital signal and thus precisely controls its characteristics. The Phase detector operational status has been tested on both falling and rising edges and is proven to operate within the detected range. Here, the signal slope control ranges from + to - π. But other phase detectors have control on one of the input signal's edges, either on the falling edge or on the rising edge, but here it is designed on both sides so control is possible. Two types of circuits are considered for the study. The first type only works on up and half edge controls while the second has both up and down edge controls and thus can have full or fine control

Full Text:

PDF

References


Kroupa V., Phase Lock Loops and Frequency Synthesis, JohnWiley & Sons Ltd 2003

Mihov G., A Digital Phase Synchronisation of Counters. The fifth National Scientific Conference ELECTRONICS ’96.Bulgaria, Sozopol, 1996

Yordanov, A., G. Mihov. Simulation Investigation of Frequency Sensitive Digital Phase Detectors. ICEST 2007, book 2, Ohrid,Macedonia, p. 773–776, 2007.

Yordanov, A., G. Kachakov, G. Mihov. Investigation of thephase-voltage responses of digital phase detectors, ICEST 2008,book 2, Niš, Serbia, p. 544–545, 2008.

Curtin M., Phase Locked Loops for High-Frequency Receiversand Transmitters, Analog Dialogue 33–7, 1999

J.I. Brown, "A digital phase and frequency-sensitive detector," in Proceedings of the IEEE, vol. 59, no. 4, pp. 717–718, April 1971, doi: 10.1109/PROC.1971.8246.

J. Lu, "A digital frequency synthesizer-phase sensitive detector," in IEEE Transactions on Instrumentation and Measurement, vol. 37, no. 2, pp. 318-320, June 1988, doi: 10.1109/19.6076

Min Wang, Zhiping Wen, Lei Chen and Yanlong Zhang, "A novel configurable no dead-zone digital phase detector design," APCCAS 2008-2008 IEEE Asia Pacific Conference on Circuits and Systems, 2008, pp. 721-724, doi: 10.1109/APCCAS.2008.4746125.

B. Akin, H.A. Toliyat, U. Orguner and M. Rayner, "Phase Sensitive Detection of Motor Fault Signatures in the Presence of Noise," 2007 IEEE International Electric Machines & Drives Conference, 2007, pp. 1420–1426, doi: 10.1109/IEMDC.2007.383637.


Refbacks

  • There are currently no refbacks.


Copyright (c) 2022 Journal of Microwave Engineering and Technologies