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The mathematical interpretation of a practical sampler which is useful to obtain the small signal models for the peak and average current mode controls is proposed Due to the difficulties in applying the Shannons samp1ing theorem to the analysis of sampling effects embedded in the current mode control several different approaches have been reported
However, these approaches require the information of the inductor current in a discrete expression, which restricts the application of the reported method only to the peak current mode control In this paper, the mathematical expressions of sampling effects on a current loop which can directly apply the Shannons sampling theorem are newly proposed, and dPp1ied to the modeling of the peak current mode control By the newly derived models of a practical sampler, the models m a discrete time domain and a continuous time domain are obtained It is expected that the derived models are useful for the control loop design of power supplies The effectiveness of the derived models are verified through the simulation and experimental results
However, these approaches require the information of the inductor current in a discrete expression, which restricts the application of the reported method only to the peak current mode control In this paper, the mathematical expressions of sampling effects on a current loop which can directly apply the Shannons sampling theorem are newly proposed, and dPp1ied to the modeling of the peak current mode control By the newly derived models of a practical sampler, the models m a discrete time domain and a continuous time domain are obtained It is expected that the derived models are useful for the control loop design of power supplies The effectiveness of the derived models are verified through the simulation and experimental results
목차
ABSTRACT
1.Introduction
2.Power Stage Model
3.Modulator Model
4.Simulation and Experimental Results
5.Conclusion
REFERENCES
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