Discontinuous Current Mode Boost Converter

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The Discontinuous Conduction Mode When the ideal switches of a dc-dc converter are implemented using current. While analysis of the buck-boost converter is left as a. More Discontinuous Current Mode Boost Converter images.

Design

Answer: Continuous-conduction-mode (CCM) means that the current in the energy transfer inductor never goes to zero between switching cycles. In discontinuous-conduction-mode (DCM) the current goes to zero during part of the switching cycle. In buck derived converters the major effect is that when it changes from CCM to DCM, it goes from a second order system to first order system. In boost and buck-boost derived systems there is a in CCM which is not present in the DCM. This makes it much more difficult to stabilize these converters with good dynamic response.

Discontinuous Current Mode Boost Converter

There is much more, but it is covered in any basic text on switching-mode power supplies such as the ones recommended in my. Much information is in application notes and reference designs from vendors who make power transistors and controllers, such as TI, On Semiconductors, International Rectifier, etc. You can find some of these by searching on semiconductors on my vendors page.

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Current Mode Control

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Control

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