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Digital CPM Controller for a Non-Inverting Buck–Boost Converter With Unified Hardware for Steady-State and Optimized Transient Conditions.
- Source :
-
IEEE Transactions on Power Electronics . Aug2020, Vol. 35 Issue 8, p8794-8804. 11p. - Publication Year :
- 2020
-
Abstract
- This paper introduces a new current-programmed controller for non-inverting buck–boost (NIBB) converters. The controller facilitates tight voltage regulation and excellent transient convergence, all carried out through a simple current programmed mode (CPM) controller hardware. Steady-state operation for the full range of conversion ratios is supported with seamless transitions between modes and improved efficiency and ripple characteristics around unity conversion gain. In case of a load transient, an optimized boundary control scheme achieves near-optimal recovery, with programmable constraints for the voltage deviation and inductor current, covering the entire range of conversion ratios. The operation of the controller is experimentally verified on a 2–15 V input to 3.3 V output, NIBB converter, demonstrating a significant improvement in steady-state around unity gain as well as fast convergence for load transients with programmable constraints for the output voltage deviation and inductor current. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HARDWARE
*ELECTRIC potential
Subjects
Details
- Language :
- English
- ISSN :
- 08858993
- Volume :
- 35
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Power Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 142892235
- Full Text :
- https://doi.org/10.1109/TPEL.2020.2965554