Current Mode Converter

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Current Mode Converter

• Shen-Yaur Chen

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• 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

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• 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

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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.

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Complete Small Signal Model
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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.

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Ridleys Model

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

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Modulation Gain
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Sampling Gain
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Buck Converter
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Buck Converter
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Boost Converter
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Boost Converter
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Boost Converter
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Boost Converter
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Boost Converter
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Boost Converter
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