The design of an active-unity power factor correction circuit with variable-hysteresis control for off-line dc-to-dc switching power supplies is described. Design equations relating the boost inductor current ripple to the circuit components selection and circuit performance arc discussed. A computer-aided design program (CADO) is developed to give the optimal circuit components selection. A 500 watt, 300 volt experimental circuit is built to verify the simulation and analysis results.
The control-to-output response of the power factor circuit is verified with the experimental results. Design guidelines for the low-frequency feedback network are presented. Small-signal closed-loop responses are measured with an experimental power factor circuit. / Master of Science
| Identifer | oai:union.ndltd.org:VTETD/oai:vtechworks.lib.vt.edu:10919/53729 |
| Date | January 1989 |
| Creators | Zhou, Chen |
| Contributors | Electrical Engineering, Lee, Fred C., Vorperian, Vatche, Cho, B. H. |
| Publisher | Virginia Polytechnic Institute and State University |
| Source Sets | Virginia Tech Theses and Dissertation |
| Language | en_US |
| Detected Language | English |
| Type | Thesis, Text |
| Format | vi, 100 leaves, application/pdf, application/pdf |
| Rights | In Copyright, http://rightsstatements.org/vocab/InC/1.0/ |
| Relation | OCLC# 20770707 |
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