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Mobile applications necessitate nowadays huge digital resources. Power management of digital circuits is based on dynamic strategies to preserve energy. DC/DC converters used to supply the digital core face stringent constraints with respect to load transients. Sliding-mode control is well suited to control buck converters that are subject to high dynamic load and line transients. Fixed frequency...
This paper proposes a high-resolution Digital-PWM (DPWM) architecture for high-frequency low-power Switching Mode Power Supply (SMPS). The proposed DPWM takes advantage of Digital Clock Manager (DCM) phase-shift characteristics available in FPGA, and combines a counter-comparator with a Multi-stAge-noise-SHaping (MASH) Delta-Sigma (Delta-Sigma) modulator. An 11-bit effective prototype DPWM along with...
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