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The stability of conventional constant on-time control buck converter is constrained by the time constant, which is the product of the output capacitor and its equivalent series resistance (ESR). Specialty polymer capacitor which is mostly used as output capacitor for such a consideration although it limits the performance of converter. On the other hand, the multilayer ceramic capacitors are widely...
The time constant, which is the product of the output capacitor and its equivalent series resistance (ESR), limits the stability of conventional constant on-time control buck converter. To meet the expected requirements, SP-CAP is mostly used as output capacitor although it deteriorates the performance of converter. On the other hand, the multi-layer ceramic capacitors (MLCC) features low cost and...
A differential-zero-compensator (DZC) technology in constant on-time control dc-dc buck converter which can be applied for the ceramic capacitors is proposed in this paper. Ceramic capacitors are widely used in industry because its low cost. However, the stability often confronts with the sub-harmonic problem related to the incorrect output capacitor and ESR used. In this paper, the proposed DZC technology...
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