Angle detection apparatus computing phase differences...

Details Angle detection apparatus computing phase differences... Angle detection apparatus computing phase differences...

2006-10-17

2006-10-17

Barnie, Rexford (Department: 2819)

Coded data generation or conversion

Phase or time of phase change

Synchro or resolver signal

C341S111000

Reexamination Certificate

active

07123175

ABSTRACT:
A resolver use angle detection IC subjected to a phase lock operation so as to follow not an angle θ(t) for detection, but a phase angle ωot±θ(t) having an offset of a frequency ωot in the phase lock units. For this reason, when the excitation frequency ωot is set sufficiently high with respect to the frequency of the angle θ(t), the phase angle ωot±θ to be followed in the phase lock units will not become zero. For this reason, an angle having a high precision can be found in real time regardless of the configuration not including the conventional apparatus in which the configuration is complex and the power consumption is large like a bipolar VCO and an up/down type counter.

REFERENCES:
patent: 3579268 (1971-05-01), Steiger
patent: 3800228 (1974-03-01), Acker
patent: 4204257 (1980-05-01), Hungerford
patent: 4710770 (1987-12-01), Hakata et al.
patent: 4795954 (1989-01-01), Sakurai et al.
patent: 4857926 (1989-08-01), Neglia et al.
patent: 4972186 (1990-11-01), Morris
patent: 4989001 (1991-01-01), Serev
patent: 5796231 (1998-08-01), Kyodo
patent: 5796357 (1998-08-01), Kushihara
patent: 6104328 (2000-08-01), Alhorn et al.
patent: 6278388 (2001-08-01), Kushihara
patent: 6925401 (2005-08-01), Kameya
patent: 6972700 (2005-12-01), Kanekawa et al.
patent: 11-083544 (1999-03-01), None

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