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The analog-to-digital converter (ADC) is an essential component providing the interface between the sensed analog signal and the corresponding digital representation for a portable ultrasonic systems. In order to extend the battery life for the portable system, a low-voltage ADC is crucial for saving the power. However, the sensed analog signal is usually larger than the tolerable range of a low-voltage...
By utilizing two quasi-lumped LC tanks, a novel synthesized microstrip line is proposed in this paper. Owing to its good slow-wave properties, the proposed synthesized line is capable of significantly reducing the circuit size. Two transmission zeros, contributed by the LC tanks in the synthesized microstrip line, are introduced to suppress the unwanted harmonic signals. An equivalent lumped circuit...
An accurate and practical method is proposed to predict the loop gain of buck converters with limited knowledge of their control circuits. This approach models the control circuits of buck converters as a simplified linear system based on a few measurements. Compared with other prediction methods, this approach obtains accurate loop gain Bode plots with much less information. Detail procedures of...
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