2.5 A, Dual Mode, Wide Efficiency Band, Hysteretic Buck Controller for Automotive Applications
This paper presents a dual mode hysteretic Buck converter with high efficiency (>80%) over a wide load current range (10mA÷2A). The regulation loop is simple and employs a digital Asynchronous Finite State Machine (AFSM) for implementing the output regulation algorithm. The proposed solution is implemented and simulated in Infineon's automotive grade technology. A comparative study is conducted showing that the proposed converter offers a maximum efficiency improvement of more than 30% at light load currents (10mA). Also, the circuit was characterized by simulations considering the strict automotive requirements, temperature range (−40 ÷150) °C and considering also process variations.
Authors
- Gheorghe Brezeanu (ORCID: https://orcid.org/0000-0002-9026-3992)
- Bogdan Dimitriu (ORCID: https://orcid.org/0000-0003-3831-8543)
- Florin Dumitru
Institutions
- Center of Technology and Engineering for Nuclear Projects (RO)
Publication Details
- Published
- 2024-10-09
- DOI
- https://doi.org/10.1109/cas62834.2024.10736863
- Primary Topic
- Sensor Technology and Measurement Systems
- Type
- article
- Field-Weighted Citation Impact
- 0.00