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Open AccessArticle

An Amplifier-Less Acquisition Chain for Power Measurements in Series Resonant Inverters

Department of Electronic Engineering and Communications, I3A, Universidad de Zaragoza, María de Luna 1, 50018 Zaragoza, Spain
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Author to whom correspondence should be addressed.
Sensors 2019, 19(19), 4343; https://doi.org/10.3390/s19194343
Received: 10 September 2019 / Revised: 30 September 2019 / Accepted: 5 October 2019 / Published: 8 October 2019
(This article belongs to the Special Issue Electronic Interfaces for Sensors)
Successive approximation register (SAR) analog-to-digital converter (ADC) manufacturers recommend the use of a driver amplifier to achieve the best performance. When a driver amplifier is not used, the conversion speed is severely penalized because of the need to meet the settling time constraint. This paper proposes a simple digital correction method to raise the performance (conversion speed and/or accuracy) when the acquisition chain lacks a driver amplifier. It is intended to reduce the cost, size and power consumption of the conditioning circuit while maintaining acceptable performance. The method is applied to the measurement of the output power delivered by a series resonant inverter for domestic induction heating. View Full-Text
Keywords: analog-digital conversion; data acquisition chain; error compensation; power measurement; home appliances; induction heating analog-digital conversion; data acquisition chain; error compensation; power measurement; home appliances; induction heating
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MDPI and ACS Style

Villa, J.; Artigas, J.I.; Barragán, L.A.; Navarro, D. An Amplifier-Less Acquisition Chain for Power Measurements in Series Resonant Inverters. Sensors 2019, 19, 4343.

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