Analytical modeling of 2DEG with 2DHG polarization charge density drain current and small‐signal model of quaternary AlInGaN HEMTs for microwave frequency applications

2019 ◽  
pp. e2609 ◽  
Author(s):  
Anbuselvan N. ◽  
Mohankumar N. ◽  
Mohanbabu A.
Keyword(s):  
Charge Density ◽  
Analytical Modeling ◽  
Drain Current ◽  
Microwave Frequency ◽  
Small Signal ◽  
Signal Model ◽  
Polarization Charge ◽  
Small Signal Model

Polarization based charge density drain current and small-signal model for nano-scale AlInGaN/AlN/GaN HEMT devices

2013 ◽  
Vol 54 ◽  
pp. 188-203 ◽  
Author(s):  
D. Godwinraj ◽  
Hemant Pardeshi ◽  
Sudhansu Kumar Pati ◽  
N. Mohankumar ◽  
Chandan Kumar Sarkar
Keyword(s):  
Charge Density ◽  
Drain Current ◽  
Small Signal ◽  
Signal Model ◽  
Gan Hemt ◽  
Nano Scale ◽  
Small Signal Model

Small-signal Model and Dynamics of MMC- HVDC Grid under Unbalanced Grid Conditions

2020 ◽  
pp. 1-1
Author(s):  
Quanrui Hao ◽  
Zheng Li ◽  
Chenjing Yue ◽  
Feng Gao ◽  
Shuying Wang
Keyword(s):  
Small Signal ◽  
Signal Model ◽  
Small Signal Model ◽  
Unbalanced Grid

Logic-Based Switching Adaptive Control of DC-DC Buck Converter

2012 ◽  
Vol 229-231 ◽  
pp. 2209-2212
Author(s):  
Bao Bin Liu ◽  
Wei Zhou
Keyword(s):  
Adaptive Control ◽  
Closed Loop ◽  
Buck Converter ◽  
Uncertain Parameters ◽  
Small Signal ◽  
Closed Loop System ◽  
Unknown Parameters ◽  
Signal Model ◽  
Small Signal Model ◽  
Control Scheme

Logic-based switching adaptive control scheme is proposed for the model of DC-DC buck converter in presence of uncertain parameters and power supply disturbance. All uncertain parameters and the disturbance are estimated together through constructing Lyapunov function. And a switching mechanism is used to ensure global asymptotic stability of the closed-loop system. The results of simulation show that even if there are multiple unknown parameters in the small-signal model, the control system of DC-DC buck converter can estimate unknown parameters quickly and accurately.

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