2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) 2020
DOI: 10.1109/i2mtc43012.2020.9128788
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Using a Digital Timer to Demodulate AM Triangular Signals for Sensor Applications

Abstract: A timer-based demodulator for low-frequency amplitude-modulated (AM) triangular signals coming from sensor circuits is presented in this work. The proposed circuit does not require a rectifier/mixer, a low-pass filter, or an analog-to-digital converter, but it employs a digital timer to extract and digitize the AM-signal amplitude. This is carried out by measuring the period of another triangular (reference) signal that is altered by the AM signal itself, as already suggested in previous papers but for AM sinu… Show more

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“…An alternative to ADCs was addressed in [137]- [140] using a timer-based converter. The works detailed in [137]- [139] are focused on applications where sensors output amplitude-modulated signals.…”
Section: Operating Systems For Low-power Mcusmentioning
confidence: 99%
“…An alternative to ADCs was addressed in [137]- [140] using a timer-based converter. The works detailed in [137]- [139] are focused on applications where sensors output amplitude-modulated signals.…”
Section: Operating Systems For Low-power Mcusmentioning
confidence: 99%