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Design of a Boost Push-Pull Converter with Output Filter
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| Author(s) |
H. Valderrama; E. Vidal-Idiarte; L. Martínez-Salamero; P. Garcés; J. Calvente |
| Abstract |
In this work, a boost push-pull converter with output filter and its corresponding controller are
designed and simulated. The converter here analyzed is a dc-to-dc voltage step-up converter of high
efficiency that has been previously used as battery discharge regulator. Magnetic coupling of input and
output inductors and the insertion of an R-C network in parallel with the intermediate capacitor
eliminate the right half plane zeros and facilitate the regulation. First, using a hysteresis comparator, a
two-loop control processing output current and output voltage is designed. Criteria for the regulator
design and expressions for calculating the main system parameters are given. Secondly, a control
system using a PWM at constant switching frequency is designed with the same regulator
characteristics than in the first case. In the second approach, the possible saturation of the transformer
core is considered and prevented by inserting an inner control loop of the push-pull current. |
| Download |
| Filename: | EPE-PEMC2002 - SSLS-01 - Valderrama.pdf |
| Filesize: | 1.326 MB |
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| Type |
Members Only |
| Date |
Last modified 2004-05-12 by System |
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