Abstract
Practical implementation of a low-cost digital controller for switched-mode converters is feasible if the sampling rate is lower than the switching frequency. The authors present a sampled-data model of a switched-mode converter applicable for the low-frequency range. The assumption made is that the sampling rate is sufficiently high as dictated by the sampling theorem. It is shown that the models are linear for small-signal operation but represent a bilinear system under large-signal conditions. The models could be useful for the design of a microprocessor-based controller for switched-mode converters, with improved transient response. Two examples of possible applications of the model are discussed: as a fast and efficient time-domain simulator and as a tool for the analysis and design of a fast-turn-on boost converter.
Original language | English |
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Pages (from-to) | 492-499 |
Number of pages | 8 |
Journal | PESC Record - IEEE Annual Power Electronics Specialists Conference |
Volume | 1 |
State | Published - 1 Dec 1989 |
Event | 20th Annual IEEE Power Electronics Specialists Conference - PESC'89 - Milwaukee, WI, USA Duration: 26 Jun 1989 → 29 Jun 1989 |
ASJC Scopus subject areas
- Modeling and Simulation
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering