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

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.

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Analysis of temperature dependent power supply voltage drop in graphene nanoribbon and Cu based power interconnects

AIMS Materials Science ◽

10.3934/matersci.2016.4.1493 ◽

2016 ◽

Vol 3 (4) ◽

pp. 1493-1506 ◽

Cited By ~ 5

Author(s):

Sandip Bhattacharya ◽

◽

Debaprasad Das ◽

Hafizur Rahaman

Keyword(s):

Power Supply ◽

Supply Voltage ◽

Voltage Drop ◽

Graphene Nanoribbon ◽

Temperature Dependent ◽

Power Supply Voltage

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High-performance combined ring oscillators

COMPEL The International Journal for Computation and Mathematics in Electrical and Electronic Engineering ◽

10.1108/compel-01-2020-0039 ◽

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.

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