| 摘要 |
A system and method for generating output signals for a position encoder is provided. The system produces an approximated position signal that is updated at a rate higher than a base rate of the measured transducer position signals. The approximated position signals may be utilized to produce quadrature outputs that are compatible with existing control systems. The measured transducer position signals are processed and/or stored by a signal processing circuit at discrete time intervals. The approximated position values are generated by a high frequency position estimation circuit. The approximated position signal is then compared by an error correction feedback loop to the measured transducer position signal and the resulting difference stored in an error register for use by the error correction feedback loop during the next discrete time interval. In one embodiment, the accuracy of the system may be further improved by utilizing a latch signal to ensure that the approximated position signal and the measured transducer position signal that are compared by the error feedback loop correspond to the same time.
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