IJREE – Volume 4 Issue 3 Paper 4

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“PERFORMANCE ANALYSIS OF QUADRATIC BOOST CONVERTER UNDER CONSTANT AND VARIABLE SWITCHING FREQUENCY OPERATION”

Author’s Name :  Sowjanya K V

Volume 04 Issue 03  Year 2017  ISSN No: 2349-2503  Page no: 12-15

12

Abstract:

In the high DC gain applications the Quadratic Boost Converter is explored to operate in different conduction modes. A description for the steady state behaviour of the converter which is operating in four different values of inductor currents are discussed. With the corresponding transitions the boundaries between the different modes are determined. This includes the converter operation using pulse width modulation for constant switching frequency and also employing hysteresis comparator for variable frequency switching. For same set of parameters, both the cases are analysed. The converter is supplied by the voltage ranging from 20 to 30 VDC. Theoretical analysis is predicted and simulations are carried out to verify the wave forms. The efficiency of the DCM can compete with the CCM in high DC gain applications.

Keywords:

Quadratic Boost Converter, Continuous Conduction Mode (CCM), Discontinuous Conduction Mode (DCM)

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