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Design of Digital Current Mode Control for Power Converters  

Jung Young-Seok (부경대 기계공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.10, no.2, 2005 , pp. 162-168 More about this Journal
Abstract
In this paper, a digital current mode control is designed for the power converter applications. The designed digital current mode controller is derived analytically from the continuous time small signal model of the power converters. Due to the small signal model based derivations of the control law, the designed control method can be applicable to boost, buck, and buck-boost converters. It is also proven that the controlled power converter employing the designed digital current mode controller is always stable regardless of an operating conditions. In order to show the usefulness of a designed controller, experiments are carried out using a 16bit DSP micro-processor, TMS320LF2406A.
Keywords
Digital current mode control; Deadbeat control; Small signal model;
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