SMPS design from system SMPS design from system to component: to component: shortening the cycle with simulation shortening the cycle with simulation March 2008 Madrid [email protected]Universidad Polit Universidad Polit é é cnica de Madrid cnica de Madrid CentrodeElectrónicaIndustrial(CEI)
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SMPS design from systemSMPS design from systemto component: to component:
shortening the cycle with simulation shortening the cycle with simulation
March 2008Madrid
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Universidad PolitUniversidad Politéécnica de Madridcnica de Madrid
Centro de Electrónica Industrial (CEI)
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Outline
The application: Interleaved
converters
Design of magnetic components for
power converters using PExprt
Advantages of Integrated magnetics
in Interleaved Converters
Integrated magnetics component
design using PExprt
Digital control implementation with
Simplorer
System design: from the circuit level
to the system level
Simplorer + SMPS
PExprt
Simplorer + SMPS
PExprt
Simplorer
Simplorer + PTool
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Advantages of Interleaved Converters
Advantages:Power distributionDynamic response improvesOutput current ripple cancellationComponent size reduction
Limitations:One magnetic component for each phaseDynamic response may not be good enoughPhase current ripple may be quite large
Vs = 9V, Is = 10AVs = 9V, Is = 10A
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Application of Interleaved Converters
AmpRF
Pow
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Filte
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Control
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Interleaved Converters design with Simplorer
0
1.00
500.00m
0 10.005.00
Efficiency ~86%Efficiency ~86%Efficiency ~86%
2.00
5.00
3.00
4.00
9.95m 10.00m9.96m 9.98m
Current at each phase (1.6A p-p)Current at each phase (1.6A Current at each phase (1.6A pp--pp))
Problems designing power systemsThe lack of models for each DC/DC converterThe lack of information on commercial convertersDifficulty to develop the modelsLong simulation timeAll above problems multiplied by the number of converters
Get optimized VHDLGet optimized VHDL--AMS models for DC/DC AMS models for DC/DC converters in minutesconverters in minutes