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In this paper, design and characterization of a 18 V switched-capacitor CMOS interface circuit for the closed-loop operation of a capacitive accelerometer is presented. The pendulous silicon accelerometer operates in atmosphere pressure and is designed for non-peaking (low-Q) response with a sensitivity of 0.5 pF/g without vacuum packaging. Test results shows that a full scale acceleration of plusmn15...
A reconfigurable multiple-band planar inverted-F antenna (PIFA) integrated with switches is presented. Two switches are inserted into the T-shaped slot on rectangular patch and by making these two switches ON and OFF the effective electrical length of the antenna could be changed. The antenna can work not only at GSM, but also DCS, PCS, Bluetooth/WLAN 2.4 GHz bands. This reconfigurable antenna with...
In this work, we propose a hardware-sharing P-MBIST design to test multiple memory instances with different types in one BIST design. By sharing a common address generator and controller, the area overhead is significantly reduced in comparison to existing works. A high-speed address generator with column-scan feature is also proposed for at-speed/full-speed tests. The proposed P-MBIST design can...
The paper studies the robust control of non-minimum phase nonlinear system based on the differential geometry theory. The nonlinear system could be expressed as input-output dynamics with the unstable internal modes, through nonlinear coordinate transformation. Virtual controller is introduced to stabilize zero dynamic, and the sliding mode controller, which is robust to the parameter perturbations...
Aiming at Automated Guided Vehicle (AGV) dynamic model characteristics, a Variable Structure Control based on genetic algorithm (GA) and least square-support vector machine (LS-SVM) was designed. Parameters, predetermined by conventional reaching law, were regulated by LS-SVM online. It was shown that system shattering is eliminated. Simulation results indicated that this method possesses the advantages...
A novel static compensator (STATCOM) is proposed in this paper. The new STATCOM is constructed by a hybrid topology cascading a neutral-point-clamped (NPC) inverter and several identical H-bridge inverters. With the novel topology consisting of a same DC bus voltage but different structure modules, the realization of a multilevel converter using a hybrid approach that involves higher voltage devices...
This paper proposes a direct power control (DPC) strategy employed for the neutral-point-clamped (NPC) three-level PWM rectifier. Mathematic model of NPC three-level rectifier is conducted firstly as a theoretical base. This topology generates a higher number of output voltage levels, increasing the flexibility for selecting an appropriate voltage vector. The direct instantaneous power control technique...
The interleaved multiphase resonant topology is very attractive for VRM since faster transient response and higher power density are required to meet the increasingly high demands for speed and efficiency of the next generation microprocessors. However, to solve the control strategy issue for the interleaved multiphase resonant VRM, a novel control scheme was proposed. The driving signals of this...
To make downstream dc-dc converters compatible with both single and three phases PFC stages for system integration, a novel three-level full bridge resonant dc-dc converter was proposed. This converter combines the LLC topology, which maintains merits as ZVS for all primary side main switches and ZCS for secondary side diodes under wide range inputs, and the three-level technique, which is suitable...
Resonant reset soft switching dual switch forward dc-dc topology is suitable for topology standardization in power electronics system integration since which can be used in high voltage, wide range input applications. To further meet the miniaturization requirement for system integration, the soft switching principle of resonant reset soft switching dual switch forward dc-dc topology was discussed,...
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