Performance Improvement of Voltage-mode Controlled Interleaved Buck Converters

Mummadi Veerachary

Performance Improvement of Voltage-mode Controlled Interleaved Buck Converters

Mummadi Veerachary

Vol. 5, No. 2, pp. 104-108, Apr. 2005

10.6113/JPE.2005.5.2.104

Interleaved buck converter

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Abstract

This paper presents the performance improvement of voltage-mode controlled interleaved synchronous buck converters. This is a voltage-mode controlled scheme, where the controllers do not need an external saw-tooth generator for PWM generation and the loop design is easier. The controller implementation requires only a single error amplifier and gives almost current mode control performance. The control scheme uses voltage feedback with two loops similar to current mode control: one for the slow outer loop and the other for the faster inner PWM control loop. To improve the performance of the converter system a coupled inductor is used. This coupled inductor reduces the magnetic size and also improves the converter’s transient performance without increasing the steady-state current ripple. The effectiveness of the proposed control scheme is demonstrated through PSIM simulations.

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Cite this article

[IEEE Style]

M. Veerachary, "Performance Improvement of Voltage-mode Controlled Interleaved Buck Converters," Journal of Power Electronics, vol. 5, no. 2, pp. 104-108, 2005. DOI: 10.6113/JPE.2005.5.2.104.

[ACM Style]

Mummadi Veerachary. 2005. Performance Improvement of Voltage-mode Controlled Interleaved Buck Converters. Journal of Power Electronics, 5, 2, (2005), 104-108. DOI: 10.6113/JPE.2005.5.2.104.