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A novel switching controller for a multiple-inductor buck converter is presented based on quantized control theory. This new design gives rise to a self-switching voltage-feedback buck converter, eliminating the need of using PWM generator and current-sense amplifiers. A 12V/1.5V three-inductor buck converter is designed for illustration. The experiment reports a static regulation error of 1.13%, step-up transient regulation error of 7.3% (110mV), and step-down transient regulation error of 8.4% (126mV) under the load current variation from 0A/50A to 50A/0A at a slew rate of 30A/µs. [ABSTRACT FROM PUBLISHER]

In quantized control system, the control system performance is degraded by different kinds of noise, but also the noise can make the encoder/decoder pairs overflow. In the latter case, we cannot get the effective information of the state. In this paper, the noise flag method which classifies the different kinds of noise is proposed to make the bound less conservative. The new method solves the problem that the negative influence to control accuracy caused by noises in quantized control. The method also solves the problem of encoder/decoder pairs overflow. Then we verify the BIBO stability of the system and the schedulability of the CAN network. [ABSTRACT FROM PUBLISHER]

This paper considers the quantized output feedback control design for a class of uncertain nonlinear systems. Different from the literature [11], the nonlinear growth of the systems under investigation depends on the unmeasured states, which makes the observer design in [11] inapplicable, and renders the performance analysis for the closed-loop system more complex and difficult. First, a new high-gain observer is introduced to reconstruct the unmeasured states. Then, by applying the set-valued maps and recursive control design method in [11], a quantized output feedback controller is designed. Lastly, by the cyclic-small-gain theorem and dynamic quantization strategy, a sufficient condition is given to guarantee that all states of the closed-loop system are bounded and furthermore output can be ultimately arbitrarily small. [ABSTRACT FROM PUBLISHER]

This paper focuses on the feedback stabilization problem of hybrid impulsive linear control systems with quantized input signals. Based on impulsive control theory and the feature of quantizer, a simple criterion for stability of the hybrid impulsive quantized systems is presented. The obtained results possess practical significance because of considering the limited communication capability with impulsive effects in control systems. [ABSTRACT FROM PUBLISHER]