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The display is a dominant power-consuming component in mobile devices. The active matrix organic light-emitting diode (AMOLED) display has been popular in mobile devices and its accurate power model is crucial for efficient power management. Existing power models do not consider the behaviours of the driving hardware components of AMOLED display modules. A new power model is proposed which considers...
A novel zero-current switching (ZCS) method for dc–dc buck converter is proposed. Instead of a conventional high precision and high speed comparator, a comparator with adaptive offset is designed here. By detecting the conduction of parasitic body diode after low-side power transistor turned off, the offset is automatically adjusted to achieve ZCS. Thus the delay and offset of comparator are no longer...
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