High Integrated ACDC Mains Converter for Integrated Circuits

Research on circuit and system concepts for ACDC converters for direct 230V mains supply of integrated circuits (ICs) and electronics modules containing those ICs with the goal to eliminate the need for bulky external power supplies and to optimize the power efficiency dependent on load conditions



  • AC-DC conversion 230V AC to 5V DC
  • Smaller/ fewer external components
  • System cost reduction, improved reliability


  • High Conversion Ratios
  • High Input Voltage 230V AC
  • Full Integration


  • Integrated Power Management
  • Smart Building Management
  • Internet of Everything
  • Industry 4.0
  • Sensor Networks


Digitaler Regelkreis

Digitaler Regelkreis

Digitaler Regelkreis


  • D. Lutz, P. Renz and B. Wicht, "An Integrated 3-mW 120/230-V AC Mains Micropower Supply," in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 6, no. 2, pp. 581-591, June 2018.
    doi: 10.1109/JESTPE.2018.2798504
  • D. Lutz, P. Renz, B. Wicht, “Switched-Capacitor Power Converters for High-Vin Applications,” 19. Workshop Analogschaltungen 2017, Technische Universität Berlin, March 02-03, 2017.
  • D. Lutz, P. Renz and B. Wicht, "A 120/230 Vrms-to-3.3V micro power supply with a fully integrated 17V SC DCDC converter," ESSCIRC Conference 2016: 42nd European Solid-State Circuits Conference, Lausanne, 2016, pp. 449-452.
    doi: 10.1109/ESSCIRC.2016.7598338
  • D. Lutz, P. Renz and B. Wicht, "A 10mW fully integrated 2-to-13V-input buck-boost SC converter with 81.5% peak efficiency," 2016 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, 2016, pp. 224-225.
    doi: 10.1109/ISSCC.2016.7417988
  • D. Lutz, P. Renz, B. Wicht, “High Vin SC Converters and Supporting Circuits for Power on Chip Applications,” 5th International power supply on chip workshop, PwrSoC 2016, Madrid, October 03-05, 2016
  • B. Wicht, J. Wittmann, P. Renz, D. Lutz, “High Vin Fast-Switching Inductive and Capacitive Point-of-Load Converters,” ECPE PowerSoC Workshop, μPE: Powering Low-Power Systems, Ismaning-Munich, June 16-17, 2015.
  • P. Renz, D. Lutz, B. Wicht, Vollintegrierter Low Power SC DC-DC Wandler mit großem Eingangsspannungsbereich 5 - 20 V, 17. Workshop Analogschaltungen 2015, Technische Universität Darmstadt, March 05-06, 2015.
  • D. Lutz, P. Renz, B. Wicht, “Low-Power-SC-Wandler mit hoher variable Eingangsspannung,” 53. Workshop on Microelectronics, Hochschule Esslingen, February 06, 2015.
  • D. Lutz, P. Renz, A. Seidel, B. Wicht, Vorrichtung und Verfahren zum elektrischen Verbinden und Trennen zweier elektrischer Potentiale sowie Verwendung der Vorrichtung; Deutsches Patent- und Markenamt, Patentschrift, DE102015011396A1, 02.03.2017