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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hao Peng Chin Chang |
| Copyright Year | 2009 |
| Description | Author affiliation: 200 Flynn Rd, Semtech Corp., Camarillo, CA 93012, U.S.A (Chin Chang) || 2580 N 1st St., Semtech Corp., San Jose, CA 95131, U.S.A (Hao Peng) |
| Abstract | In this paper, we analyze a simple, yet effective nonlinear digital control approach -- gain scheduling of the A/D converter, in PWM converters to achieve system stability and improved dynamic performance. It is shown that a nonlinear gain scheduling could be conveniently realized and implemented, e.g. right after the A/D converter in digital controlled PWM converters. Several simple gain scheduling schemes are analyzed with describing function method, and associated gains are derived and provided. Experimental results on a FPGA system showed that the Buck converter transient response could be improved via nonlinear gain scheduling method. However, in Boost and Buck-Boost converters, it is necessary to make proper controller adjustment (pole and zero) so that the system stability is guaranteed not only with normal gain, but also with reduced gain. |
| Starting Page | 331 |
| Ending Page | 336 |
| File Size | 151594 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424435562 |
| DOI | 10.1109/IPEMC.2009.5157408 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-05-17 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Pulse width modulation converters Digital control Performance analysis Dynamic scheduling Stability analysis Nonlinear dynamical systems Field programmable gate arrays Buck converters Transient response Control systems |
| Content Type | Text |
| Resource Type | Article |
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