Analogue phase detection device - produces output voltage dependent on phase difference of two input voltages and uses two conventional phase detectors

摘要

Analogue phase detection device produces output voltage dependent on phase difference of two input voltages and uses two conventional phase detectors. The two input voltages are directly supplied to the first phase detector. Voltage proportional to the sine of the phase difference of the two input voltages is emitted. The second phase detector emits voltage proportional to the coisine of the phase difference. The voltage emitted by the second phase detector (3) is supplied to an exponential circuit (6). The voltage taken from the exponential circuit (6) represents the input voltage of an adder (7). The second input voltage (K) tobe added is freely selectable.