| ??? 12/18/04 23:00 Read: times |
#83443 - Yet Another Idea Responding to: ???'s previous message |
Hi Rahu,
Another possibility, subject to processing and filtering phase lag restrictions, is to use an on chip counter/timer to generate a PWM output proportional to the angle. Low pass filter the PWM to obtain a 'dc' voltage. Then using an op amp, offset and scale the filter output to get the appropriately scaled voltage. If you have an external ADC channel available, convert the scaled analog voltage to correct for error in the analog loop. Bruce |
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