Infinite dynamic range phase detector

Details Infinite dynamic range phase detector Infinite dynamic range phase detector

1986-10-09

1988-03-01

Tokar, Michael J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Phase comparison

324 79R, 328133, 331 25, G01R 2500

Patent

active

047288841

ABSTRACT:
An infinite dynamic range phase detector compares a test signal with a phase shifted reference signal which tracks the phase drift of the test signal. The incremental phase error between the test signal and the phase shifted reference signal is accumulated to provide an n*modulo(360) plus the increment between zero and 360 degrees output. A portion of the accumulated output is fed back as an offset which is applied to a reference signal to produce the phase shifted reference signal.

REFERENCES:
patent: 3978403 (1976-08-01), Mansfield
patent: 4053834 (1977-10-01), Lerner
patent: 4627079 (1986-12-01), Van der Embse

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