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The current mode dc-dc converter is useful in order to perform the superior dynamic characteristics. However, these studies have focused on sensing the average value of the switch/reactor current because it is very difficult to sample the data of accurate peak point of switch/reactor current in the digitally controlled high switching converter. Therefore, it has been reported that the peak point is...
In this paper we discuss performance results of a novel real-time closed-loop power amplifier (PA) linearization technique that has originally been proposed by Ahmed and Li. The novel approach performs on-the-fly prediction and measurement of the PA AM/AM and AM/PM non-linearity, stores such non-linear characteristics and calculates their inverse functions in order to pre-distort the base-band amplitude...
This paper introduces a digital dual-mode controller for low-power high-frequency dc-dc switch-mode power supplies (SMPS) suitable for on-chip implementation. In steady state the controller behaves as a conventional digital PWM controller, and during transients it utilizes continuous-time digital signal processing to achieve very fast transient response. The continuous time DSP is triggered by a sudden...
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