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Current Mode Converter PowerPoint Presentation
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Current Mode Converter

Current Mode Converter

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Current Mode Converter

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  1. Current Mode Converter Shen-Yaur Chen

  2. Limited value of error voltage provides peak current protection • No Soft-start mechanism is required • Modules share a common error voltage • Peak Current in each is kept the same

  3. Limited value of error voltage provides peak current protection • No Soft-start mechanism is required • Modules share a common error voltage • Peak Current in each is kept the same

  4. Average Model • R. D. Middlebrook, “Topics in Multiple-Loop Regulations and Current-Mode Programming,” in proc. IEEE Power Electron. Spec. Conf., Rec., 1985, pp. 716-732.

  5. Complete Small Signal Model

  6. Exact Average • G. C. Verghese, C. A. Bruzos, and K. N. Mahabir, “Averaged and Sampled-Data Models for PCM Control: A Reexamination,” in proc. IEEE Power Electron. Spec. Conf., Rec., 1989, pp. 3-13.

  7. Ridley’s Model • R. B. Ridley, A New small-signal Model for Current-Mode Control, Ridley Engineering, Inc.,July 1999.

  8. Modulation Gain

  9. Sampling Gain

  10. Buck Converter

  11. Buck Converter