نتایج جستجو برای: low turn on voltage
تعداد نتایج: 8988319 فیلتر نتایج به سال:
Voltage references are crucial part of every circuit, providing a fixed voltage regardless of environmental parameters and device loading. Among several approaches proposed for designing voltage references, bandgap voltage references are the most common, but the bandgap voltage reference is bipolar in nature and does not show good stability when the supply voltage is small. Thus according to th...
In this work, a novel AlGaN/GaN lateral field-effect rectifier (L-FER) with ultralow turn-on voltage (VT) and low reverse leakage current (IR) is proposed verified by technology computer aided design (TCAD) Sentaurus. Through shortly contacting the short-channel metal–oxide–semiconductor (MOS) structure an Ohmic-contact as anode of L-FER, VT can be realized. And inserting floating clamp (FC) el...
In this work, a non-isolated high step up DC-DC converter using coupled inductor and voltage multiplier cell is proposed. The proposed converter conversion ratio is efficiently extended by using a coupled inductor. An interleaved configuration of two diode-capacitor cells is applied to step up the voltage conversion ratio and decrease the voltage stress across the switches. Also, in the suggest...
Overvoltage distribution along the transformer winding must be uniform to certify the safety of the operation of the power transformer. Influence of the parameters variation on the impulse voltage distribution (IVD) in disk winding transformer is going to be analyzed which hasn’t been analyzed on this type of winding in the previous papers. In this research, a transformer with disk winding and ...
One of the most important control methods in induction motor is direct vector control. This method is based on rotor flux estimation using stator voltage. The machine voltage is low in The voltage model for low speed and voltage drop over the stator resistance is not negligible in front of stator voltage. Thus the stator flux estimation using voltage method is not precise. Some methods are base...
Standard induction motors are exposed to steep-fronted, non-sinusoidal voltages when fed from frequency converters. These wave patterns can be destructive to the insulation. The aim of the present work is to develop methods of predicting the magnitude and distribution of fast voltage within the stator winding of an electric machine fed from a frequency converter. Three methods of predicting the...
Nanocarbon-derived electron emission devices, specifically nanodiamond lateral field emission (FE) diodes and gated carbon nanotube (CNT) triodes, are new configurations for robust nanoelectronic devices. These novel micro/nanostructures provide an alternative and efficient means of accomplishing electronics that are impervious to temperature and radiation. For example, nitrogen-incorporated na...
This article reports the development of (a) vertical and (b) lateral diamond vacuum field emission devices with excellent field emission characteristics. These diamond field emission devices, diode and triode, were fabricated using a self-aligning gate formation technique from silicon-on-insulator wafers using conventional siliconmicropatterning and etching techniques. High emission current N0....
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