IMMS Institut für Mikroelektronik- und Mechatronik-Systeme gemeinnützige GmbH (IMMS GmbH)’s Post

Improved energy harvesting for #UHF passive #RFID applications like object tracking in supply chains or #sensor #measurements for #greenhouse #automation – today, Rohit Kesharwani, Andre Jäger, Martin Grabmann, David Schreiber, Georg Gläser, Hani Abdullah, and Eric Schäfer will contribute “A Charge Pump System with Controlled Input Impedance for Optimized RFID Energy Harvesting” to the IEEE RFID 2024, 4 – 6 June, MIT, Cambridge, MA: https://2024.ieee-rfid.org. Efficient #energyharvesting is crucial for the seamless operation of passive #UHF #RFID #sensor applications, especially in energy-constrained environments. The authors will present a novel approach to optimize RFID transponder energy harvesting using a carefully designed charge pump system. Their architecture pumps energy from the transponder’s rectified supply voltage to a storage capacitor from which the EEPROM and #sensors are powered. By regulating the rectifier output voltage, i.e. the input of the charge pump, the maximum energy is extracted without overloading the rectifier. Compared to conventional charge pump output voltage regulation, their approach maintains a minimum supply for the operation of the transponder IC. Their implementation using an #analog control loop with a voltage-controlled oscillator results in a lower ripple of the rectifier voltage compared to a #digital control loop. The entire design is implemented and validated in a commercial 180-nm #CMOS technology. Learn more on our #research on battery-free #RFID #sensors under www.imms.de/rfid or contact Eric Schäfer directly. The StorAIge project (www.imms.de/storaige) has received funding from the ECSEL Joint Undertaking (JU) under grant agreement No 101007321. The JU receives support from the European Union’s Horizon 2020 research and innovation programme and France, Belgium, Czech Republic, Germany, Italy, Sweden, Switzerland, Turkey. StorAIge is funded by the German Federal Ministry of Education and Research (BMBF) under the reference 16MEE0155T and by the Thuringian Ministry of Economic Affairs, Science and Digital Society (TMWWDG) under the reference 2021 ECS 0003. #ASIC #ASICs #asicdesign #icdesign #rfidtechnology #ultralowpower

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Jacek Nowak

Project Manager – Electronic & Sensors @ microsensys

1mo

Great work guys. Very innovative chip, top publication.

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