scholarly journals Taming the Stability-Constrained Performance Optimization Challenge of Distributed On-Chip Voltage Regulation

2019 ◽  
Vol 38 (8) ◽  
pp. 1571-1584 ◽  
Author(s):  
Xin Zhan ◽  
Peng Li ◽  
Edgar Sanchez-Sinencio
Keyword(s):  
Performance Optimization ◽  
Voltage Regulation ◽  
On Chip ◽  
The Stability

scholarly journals A Brief Overview of On-Chip Voltage Regulation in High-Performance and High-Density Integrated Circuits

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 813-826
Author(s):  
Farid Uddin Ahmed ◽  
Zarin Tasnim Sandhie ◽  
Liaquat Ali ◽  
Masud H. Chowdhury
Keyword(s):  
Integrated Circuits ◽  
High Performance ◽  
Voltage Regulation ◽  
High Density ◽  
On Chip

Design and Implementation of Mid-Frequency Magnetron Sputtering Power Supply Based on TL494 and MCU

2013 ◽  
Vol 709 ◽  
pp. 408-412
Author(s):  
Yan Ling Zhao ◽  
Rong Xing Liu
Keyword(s):  
Magnetron Sputtering ◽  
Power Supply ◽  
Current Mode ◽  
Voltage Regulation ◽  
Control Circuit ◽  
Constant Current ◽  
Loop Control ◽  
Pulse Width Modulator ◽  
Digital Pulse ◽  
The Stability

Abstract. A mid-frequency magnetron sputtering (MFMS) power supply based on TL494 and MCU was introduced. A Buck Chopper and full bridge inverter were applied to the main circuit. The PWM controller TL494 was used in the Buck voltage-regulation control circuit to realize closed loop control. The drive signal of the IGBT in full bridge inverter was based on precise digital pulse width modulator (DPWM) signal produced by the MCU M30290. The DPWM can be set by potentiometer so the power supply can output the square wave with adjustable frequency and duty cycle. The power supply was operated in constant current mode. For micro or strong arcing of the target, different safeguards were adopted by the control circuit. At last, the system test and experimental results show that the stability, reliability and tuning range of the MFMS power supply can meet the requirements of the magnetron sputtering coating.

scholarly journals Active Filter-Based Hybrid On-Chip DC–DC Converter for Point-of-Load Voltage Regulation

2013 ◽  
Vol 21 (4) ◽  
pp. 680-691 ◽  
Author(s):  
Selçuk Kose ◽  
Simon Tam ◽  
Sally Pinzon ◽  
Bruce McDermott ◽  
Eby G. Friedman
Keyword(s):  
Voltage Regulation ◽  
Active Filter ◽  
Load Voltage ◽  
On Chip

scholarly journals Voltage regulation and power loss reduction by integration of SVC in distribution networks via PSSE

2020 ◽  
Vol 11 (3) ◽  
pp. 1579
Author(s):  
Ba-swaimi Saleh ◽  
Lee Jun Yin ◽  
Renuga Verayiah
Keyword(s):  
Power Flow ◽  
Voltage Stability ◽  
Flow Analysis ◽  
Distribution Networks ◽  
Voltage Regulation ◽  
Base Case ◽  
Facts Devices ◽  
Load Demand ◽  
Power Loss Reduction ◽  
The Stability

Voltage stability is necessary in order to maintain the health of the grid system. In recent years, the load demand is increasing from time-to-time which compromised the stability of the system. On that purpose, several methods on enhancing the voltage stability of the system was introduced such as the transformer tap and FACTS devices. In a general overview, this study is to propose a several power compensation techniques on the base case of an IEEE-33 bus whereby power flow analysis using Netwon- Raphson in PSS/E software is performed. Afterwards, distributed generation (DG) and Static VAR Compensator (SVC) will be implemented within the distribution network to compensate the voltage instability losses based on the weakest index from the bus system. From both the cases which is proposed earlier, a comparison study is conducted on the performance on both DG and SVC within the proposed network.

On-chip electrocatalytic microdevice: an emerging platform for expanding the insight into electrochemical processes

2020 ◽  
Vol 49 (10) ◽  
pp. 2916-2936 ◽  
Author(s):  
Huan Yang ◽  
Qiyuan He ◽  
Youwen Liu ◽  
Huiqiao Li ◽  
Hua Zhang ◽  
...  
Keyword(s):  
Performance Optimization ◽  
Electrochemical Processes ◽  
On Chip ◽  
Insight Into

This comprehensive summary of on-chip electrocatalytic microdevices will expand the insight into electrochemical processes, ranging from dynamic exploration to performance optimization.

scholarly journals Surface-Tension-Confined Channel with Biomimetic Microstructures for Unidirectional Liquid Spreading

Micromachines ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 978
Author(s):  
Yi Zhang ◽  
Yang Gan ◽  
Liwen Zhang ◽  
Deyuan Zhang ◽  
Huawei Chen
Keyword(s):  
Surface Tension ◽  
Underlying Mechanism ◽  
Structural Features ◽  
Liquid Motion ◽  
Water Separation ◽  
Lab On Chip ◽  
Liquid Spreading ◽  
Oil Water Separation ◽  
On Chip ◽  
The Stability

Unidirectional liquid spreading without energy input is of significant interest for the broad applications in diverse fields such as water harvesting, drop transfer, oil–water separation and microfluidic devices. However, the controllability of liquid motion and the simplification of manufacturing process remain challenges. Inspired by the peristome of Nepenthes alata, a surface-tension-confined (STC) channel with biomimetic microcavities was fabricated facilely through UV exposure photolithography and partial plasma treatment. Perfect asymmetric liquid spreading was achieved by combination of microcavities and hydrophobic boundary, and the stability of pinning effect was demonstrated. The influences of structural features of microcavities on both liquid spreading and liquid pinning were investigated and the underlying mechanism was revealed. We also demonstrated the spontaneous unidirectional transport of liquid in 3D space and on tilting slope. In addition, through changing pits arrangement and wettability pattern, complex liquid motion paths and microreactors were realized. This work will open a new way for liquid manipulation and lab-on-chip applications.

scholarly journals Experimental verification and stability state space analysis of CLL–T series parallel resonant converter with fuzzy controller

2012 ◽  
Vol 63 (6) ◽  
pp. 365-372
Author(s):  
Chinnadurai Nagarajan ◽  
Muthusamy Madheswaran
Keyword(s):  
State Space ◽  
Closed Loop ◽  
Fuzzy Controller ◽  
Voltage Regulation ◽  
Control Methods ◽  
Simulation Studies ◽  
Resonant Converter ◽  
Space Technique ◽  
The Stability ◽  
Steady State Performance

This paper presents a closed loop CLL-T (capacitor inductor inductor) series parallel resonant converter (SPRC) has been simulated and the performance is analyzed. A three element CLL-T SPRC working under load independent operation (voltage type and current type load) is presented in this paper. The stability and AC analysis of CLL-T SPRC has been developed using state space technique and the regulation of output voltage is done by using Fuzzy controller. The simulation study indicates the superiority of fuzzy control over the conventional control methods. The proposed approach is expected to provide better voltage regulation for dynamic load conditions. A prototype 300 W, 100 kHz converter is designed and built to experimentally demonstrate, dynamic and steady state performance for the CLL-T SPRC are compared from the simulation studies.

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