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Articles by Zhang Xia
Total Records ( 2 ) for Zhang Xia
  Cheng Wei , Zhang Xia , Hu Jian-Ping and Han Cheng-Hao
  The leakage dissipation catches up with the dynamic power consumption gradually and it is becoming an important factor in low-power CMOS circuits. In this work, a p-type complementary pass-transistor adiabatic logic (P-CPAL) using DTCMOS and gate-length biasing techniques is proposed. In order to reduce sub-threshold leakage dissipations, DTCMOS and gate-length biasing techniques are used for the P-CPAL circuits. An ISCAS benchmark circuit using DTCMOS and gate-length biasing techniques is verified. All circuits are simulated with HSPICE using a NCSU 65nm PTM (Predictive Technology Model) process. Results show that both leakage and dynamic dissipations of the P-CPAL circuits with dual-threshold CMOS and gate-length biasing techniques are reduced greatly compared with the normal P-CPAL circuits.
  Zhang Xia
  The temperature characteristics of main physical parameters of a fence structure capacitive micromachined accelerometer are investigated by theoretical analysis and experiment. The experimental results show that the two initial sensing capacitances change with temperature and their variations are different from each other. Based on the temperature characteristics of the accelerometer and its interface circuit, the system-level simulation model is built on Simulink platform. The simulation results demonstrate that the mismatch between the different variations of the two initial sensing capacitances as temperature changing is the major influencing factor to the temperature performance of the accelerometer system. The greater the mismatch degree is, the more serious the temperature effect on the system becomes. The temperature performance of the accelerometer system is improved from -6.245 to -2.1 mg °C-1 by adopting thermal resistance as the gain resistance of the instrumentation amplifier, without any additional hardware circuit or software algorithm.
 
 
 
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