472 Lecture 7 Full average model

472 Lecture 7 Full average model - Lecture 7 Average (CCA),...

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Lecture 7 1 Lecture 7 Average (CCA), large-signal model of dc-dc converters • Average model of building block, switching pole • Average model of converter EEE 498/591 – Raja Ayyanar
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Lecture 7 2 Why average model • Unified analysis of most converters – in both transient and steady state • Controller design - through simulation - analytically with small signal model • Much faster simulation • Better intuitive understanding of converter behavior EEE 498/591 – Raja Ayyanar
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Lecture 7 3 Building block approach • Identify the building block common to all converters • Derive the average model for the building block • Replace the ‘switching’ building block by the above model, to obtain the average model of the converter EEE 498/591 – Raja Ayyanar
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Lecture 7 4 Building block – Two port network + _ + _ Initially assume CCM () A t q + _ v A ( t ) i A ( t ) 1 2 A A t q A t q + _ V in cp vt A t q cp it vp vp 1 0 d Current port Voltage port • Voltage across voltage port close to steady dc
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This note was uploaded on 05/25/2011 for the course EE 472 taught by Professor Ayynar during the Spring '11 term at ASU.

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472 Lecture 7 Full average model - Lecture 7 Average (CCA),...

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