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A digital adaptive voltage positioning (Digital AVP) technique with fast transient response for voltage regulators (VRs) is proposed in this paper. In this proposed digital control architecture, two digital-to-analog converters (DACs) are used instead of analog-to-digital converters (ADCs), thus significantly reducing system complexity. Both the voltage and current references are changed dynamically...
A new two-stage buck topology for voltage regulators (VRs) is proposed in this paper. Continuous input current, intermediate bus current and output current can be achieved without intermediate bus capacitor. Good stability of the cascade converter and better transient response than conventional buck converter can also be achieved. Detailed theoretical analyses have been presented. A 1 V/25 A experimental...
In this paper, a new converter architecture that is based upon the buck topology and that allows a multi-interleaving technique is proposed. The converter provides automatic current sharing and improving current ripple cancellation effect. Multiphase buck converters with multi-interleaving technique perform better than with interleaving technique because the multi-interleaving technique can extend...
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