Gao Zhe

Analysis of the area efficient transmission gate power clamp in 65nm CMOS process

an area efficient clamp is presented and validated in 65nm low leakage CMOS process. With this novel design, only a very short time constant RC timer is required for triggering and keeping the clamp turning on for shunting the ESD current. And the leakage is greatly reduced in normal operation because of the small capacitor. Robust ESD protection capability and no risk of power on mis-triggering problems are also studied in the paper.

Parameter tuning of fractional-order PD μ controllers based on bacterial foraging-particle swarm optimization algorithm

An improved bacterial foraging-particle swarm optimization algorithm (BF-PSO) is proposed to tune parameters of fractional-order PDμ controllers for fractional-order systems with time-delays. Firstly, parameters are initialized based on the stable regions determined by the analytical method, overcoming the defect of uncertainty stable region by Ziegler-Nichols method. Moreover, the convergence and divergence operator is used to replace the elimination stage of BF-PSO, enhancing the efficiency and accuracy of search. Finally, the simulation results are analyzed to verify the effectiveness of this improved BF-PSO method.