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In this paper, we propose a new technique to regulate multi-phase interleaved switched-capacitor DC-DC converters. Traditionally, SC converters are either regulated by modulating the switching frequencies directly through a voltage-controlled-oscillator or by using hysteretic control where separate control loops are used for each converter core. Achieving fast regulation by modulating VCO is difficult...
Hysteretic control is widely adopted in the power management units (PMUs) for modern electronic devices due to their simple and stable control architecture, as well as the fast load transient response. However, the switching frequency of a traditional hysteretic converter is not fixed. It changes with operating condition and component aging, and hence brings in electro-magnetic interference (EMI)...
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