Novel Duty-Cycle-to-Code Conversion Method
Abstract
New duty-cycle–to–code conversion method is described in the Paper. It is based on the determination of average pulse width and average period during the conversion time <i>T</i><sub>q</sub>. The last one is determined by the beforehand given quantization error <i>δ</i> and equals to the integer number of periods. Due to this, the component error by reason of non-multiplicity of conversion time <i>T</i><sub>q</sub> and period <i>T</i><sub>x</sub> is eliminated. The method allows to measure the duty-cycle in a wide range of frequencies of input signals. The quantization error does not depend on the frequency of converted signal <i>f</i><sub>x</sub> and is determined basically by the pulse width <i>τ</i><sub>x</sub>. The proposed method can be used in different duty-cycle output smart sensors and transducers, as well as in DAQ boards for frequency-time parameters of electric signals.
Event details
- Event
- iwadc-2003