Wide range level shifters are a fast energy efficient converter capable of converting low voltage to high voltage. Level Shifters are used to shift the voltage from one level to another level. Multi voltage system utilizes the advantage of level shifter. Multi voltage systems consist of low voltage as well as high voltage. Existing method was implemented by using LVT (Low Threshold Voltage Tran...

A process, voltage and temperature (PVT) sensors with dynamic voltage selection are proposed for environmental management in the ultra-low voltage dynamic voltage and frequency scaling (DVFS) system. The process and voltage (PV) sensors initially monitor the process variation. With known process information, PV sensors can real-time provide voltage variation status. The temperature sensor has s...

Determining the voltage linearity of a large impulse voltage divider used in the testing of ultra-high-voltage (UHV) equipment is a challenging task. This leads to the question of whether the uncertainty requirements, specified in the present edition of IEC60060 [1, 2], can be met in the UHV range. This paper presents the results of voltage divider linearity tests at voltages up to 2400 kV. Mea...

In wide area measurement systems, PMUs are the main component measuring real time synchronized data from different buses. Installation of PMUs at all buses is a primary way to provide full observability of the power network. However, it is not practical in real networks due to the relatively expensive cost of PMUs and other technical limitations. Optimal PMU Placement (OPP) is an optimization p...

abstract: one the most important problems in recent sensitive loads is the quality of voltage. for this challenge custom power devices are used in distribution systems. dynamic voltage restorer (dvr) is a custom power device that improves voltage, decrease power distortion, filter harmonics and balance distributed generations (dgs) with low voltage distribution system. in this paper, a new algo...

Electrical parameter online measurement is used to monitor the working state of AC motor, to prevent the voltage being too low or the load being too large, to protect the motor safely. The paper mainly discusses the configuration and the principle based on Cortex-M3 for measuring the electrical parameter of alternating motor. The formula is given in the paper that calculates the AC signal harmo...

Stress-Induced Leakage current (SILC) on ultra-thin SiO2 was measured in-situ by using a high-resolution measurement technique in a special designed chamber at 100°C with temperature stability of 0.002°C. A gate stress voltage range was measured from –3.1V down to –1.5V in steps of 0.2V. Even at these low voltages, no significant change in the degradation mechanism could be observed. Extrapolat...

In this study, the noise voltage on the circuit installed in the frame caused by the ground potential variation and the influence of the resistance of the frame ground on the noise voltage on the circuit are discussed. It is concluded as a result of measurement and circuit simulation that the noise voltage gets lower as the grounding resistance becomes high and the capacitive coupling between t...

Current and voltage transformers influence the criterion values measurement particularly during disturbances in the system. Certain construction limitations of instrument transformers may in some cases cause maloperation or substantial delay in tripping of the protective relays. Current transformer saturation and discharging of the capacitive voltage transformer’s internal energy during short c...