Fast transient response, simple control scheme and low cost are features that distinguish constant-on-time buck converters from others. Simplicity of the control scheme is reflected in a single requirement for power electronics engineers: a design that ensures enough low amplitude resistive ripple component at the feedback to precisely starts the on-time pulse. There are design rules that guide the selection of the components. A well known one reported in the literature predicts if the converter suffers of the sub-harmonic oscillations undesirable phenomenon. The authors present a better simple design expression to avoid the onset of this unwanted drawback.

A novel sufficient condition to avoid subharmonic oscillations for buck converters with constant on-time control

Bizzarri F.;Brambilla A.
2020-01-01

Abstract

Fast transient response, simple control scheme and low cost are features that distinguish constant-on-time buck converters from others. Simplicity of the control scheme is reflected in a single requirement for power electronics engineers: a design that ensures enough low amplitude resistive ripple component at the feedback to precisely starts the on-time pulse. There are design rules that guide the selection of the components. A well known one reported in the literature predicts if the converter suffers of the sub-harmonic oscillations undesirable phenomenon. The authors present a better simple design expression to avoid the onset of this unwanted drawback.
2020
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1157770
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