High frequency modeling of peak current mode control of DC-DC converters

Karimi, Charif; Godoy, Emmanuel; Iftikhar, Muhammad; Lefranc, Pierre; Sadarnac, Daniel

doi:10.1109/powereng.2009.4915188

Cited by 6 publications

(1 citation statement)

References 7 publications

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“…Fig.4 shows the principle of PCM. This control architecture consists of two loops: one is the peak current control loop and another is the output voltage [5] .…”

Section: Loss Calculation Of Compensating Circuitmentioning

confidence: 99%

White LED power supply based on Buck converter with active ripple compensation

Tang

Wang

Xiaohui

2011

2011 International Conference on Consumer Electronics, Communications and Networks (CECNet)

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Considering that the lifespan of electrolytic capacitors in power supply don't match that of LED, we propose a Buck converter which uses active ripple compensation circuit to replace the traditional electrolytic capacitor filter. When the converter works on long duty ratio, the power loss in compensation circuit is small and ripple current and voltage are low. The operation principle of this new topology with peak current mode control (PCM) is discussed. The transfer function of PCM with slope compensation is established. The current loop stability with different slope compensation is discussed through frequency response analysis. Finally, simulation and experiment results of the power supply for LED verified correctness of the theory.

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“…Fig.4 shows the principle of PCM. This control architecture consists of two loops: one is the peak current control loop and another is the output voltage [5] .…”

Section: Loss Calculation Of Compensating Circuitmentioning

confidence: 99%

White LED power supply based on Buck converter with active ripple compensation

Tang

Wang

Xiaohui

2011

2011 International Conference on Consumer Electronics, Communications and Networks (CECNet)

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Modeling and Control of Peak Current Mode Non-ideal Buck Converter

Liu

Wang

2019

IOP Conf. Ser.: Earth Environ. Sci.

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Based on the energy conservation method and the average modeling method of switching elements, considering the non-ideal parameters of the actual circuit, the whole peak current mode control non-ideal Buck converter system model is established. On this basis, for the equivalent power level, there are still some problems such as slow response speed and poor stability. A voltage controller compensation method is proposed and a system model including voltage controller compensation network is established. Through the analysis of the model and the simulation in Matlab, it can be seen that the model is intuitive and clear in physical meaning, which can more accurately reflect the working condition of the actual circuit. The designed voltage controller can improve the performance of the converter and can be DC-DC. The design of the converter system control circuit provides a theoretical basis.

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