A Time-Slicing Ring Oscillator for Capturing Instantaneous Delay Degradation and Power Supply Voltage Drop

2006 ◽  
Author(s):  
Takashi Sato ◽  
Yu Matsumoto ◽  
Koji Hirakimoto ◽  
Michio Komoda ◽  
Junichi Mano
Keyword(s):  
Power Supply ◽  
Supply Voltage ◽  
Voltage Drop ◽  
Ring Oscillator ◽  
Power Supply Voltage ◽  
Time Slicing

scholarly journals Analysis of the influence of zero potential live operation on protection

2020 ◽  
Vol 152 ◽  
pp. 03004
Author(s):  
Qi Yang ◽  
Zhenyu Wang ◽  
Liang Zhu ◽  
Li Xu ◽  
Chaohui Zhen
Keyword(s):  
Power Supply ◽  
Impact Analysis ◽  
Supply Voltage ◽  
Voltage Drop ◽  
Distribution Network ◽  
Neutral Point ◽  
Power Supply Voltage ◽  
Current Curve ◽  
Zero Sequence ◽  
Zero Potential

In the case of live working in the distribution network, a live method of live working that satisfies the requirements for personal safety and power supply reliability needs to be studied, because of the serious safety accidents caused by misuse and weak safety awareness. Based on the analysis of singlephase buck symmetrical operation characteristics, a new method of zero-potential live working of distribution network based on injection current is proposed. By injecting current into the neutral point, the zero-sequence voltage is regulated so that the neutral point voltage is equal to the value of the operating phase line voltage drop minus the operating phase power supply voltage, ensuring that the operating point voltage is zero. Based on the principle of current fast-break protection and time-limited overcurrent protection, it is analyzed that the zero-potential uninterruptible operation method of the distribution network will not affect the distribution network protection. Finally, the system model is established based on the MATLAB. The simulation verifies the feasibility of the method by the operating phase voltage curve and the correctness of the protection impact analysis by comparing the non-working phase current curve with the protection setting.

High-performance combined ring oscillators

2020 ◽  
Vol 39 (3) ◽  
pp. 535-550
Author(s):  
Masoud Soltani ◽  
Farzan Khatib ◽  
Seyyed Javad Seyyed Mahdavi Chabok
Keyword(s):  
Power Supply ◽  
Delay Time ◽  
Supply Voltage ◽  
Theoretical Calculations ◽  
Cmos Technology ◽  
Ring Oscillator ◽  
Ring Oscillators ◽  
Large Signal ◽  
Power Supply Voltage ◽  
Content Type

Purpose The purpose of this paper is to investigate a more robust ring oscillator. Less sensitivity to power supply variations is a target. This is important since low-quality ring oscillators could be exploited in numerous systems to reduce die costs. Design/methodology/approach The method in this work is large signal analysis. Delay time as the large signal parameter is calculated symbolically to explore dependency on a power supply voltage. Then simulations are performed to make a comparison. In this work, mathematical justifications are verified via HSPICE circuit simulator outputs, while 0.18 µm TSMC CMOS technology is exploited. Findings At least two combined configurations are presented with higher robustness. These circuits are more appropriate in noisy conditions. Both theoretical calculations and simulation results verify less sensitive oscillation against supply voltage ripples and temperature variations. Originality/value Introducing a band-switched inverter in combined configurations is contribution. In this way, three structures are presented which both show higher stability in oscillation frequency. The band switched delay time calculations are quite new and also the validity of the symbolical delay time approach is verified by circuit simulations.

Power Supply Voltage Dependence of Within-Die Delay Variation of Regular Manual Layout and Irregular Place-and-Route Layout

2011 ◽  
Vol E94-C (6) ◽  
pp. 1072-1075
Author(s):  
Tadashi YASUFUKU ◽  
Yasumi NAKAMURA ◽  
Zhe PIAO ◽  
Makoto TAKAMIYA ◽  
Takayasu SAKURAI
Keyword(s):  
Power Supply ◽  
Voltage Dependence ◽  
Supply Voltage ◽  
Power Supply Voltage ◽  
Place And Route ◽  
Delay Variation

Power Supply Voltage Control for Eliminating Overkills and Underkills in Delay Fault Testing

2016 ◽  
Vol E99.C (10) ◽  
pp. 1219-1225
Author(s):  
Masahiro ISHIDA ◽  
Toru NAKURA ◽  
Takashi KUSAKA ◽  
Satoshi KOMATSU ◽  
Kunihiro ASADA
Keyword(s):  
Power Supply ◽  
Supply Voltage ◽  
Voltage Control ◽  
Fault Testing ◽  
Power Supply Voltage ◽  
Delay Fault ◽  
Delay Fault Testing

AlInAs/GaInAs on InP HEMTs for low power supply voltage operation of high power-added efficiency microwave amplifiers

1993 ◽  
Vol 29 (15) ◽  
pp. 1324 ◽  
Author(s):  
L.E. Larson ◽  
M.M. Matloubian ◽  
J.J. Brown ◽  
A.S. Brown ◽  
M. Thompson ◽  
...  
Keyword(s):  
Low Power ◽  
High Power ◽  
Power Supply ◽  
Supply Voltage ◽  
Power Supply Voltage ◽  
Power Added Efficiency ◽  
Microwave Amplifiers
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