In this paper, the proposed shunt regulator is presented. Compared with a series voltage regulator, the shunt voltage regulator gives wideband power supply rejection (PSR) and fast transient response at the expense of large quiescent current. In this paper, a novel shunt regulator architecture is proposed to achieve the genuine characteristic of a shunt regulator with small quiescent current. T...

The d.c. I-V characteristic of polycrystalline YBa2Cu3O7−x high temperature superconductors (HTSC) is measured near the transition temperature (Tc). The Tc was found to be 90 K with a width of 2 K. The voltage was measured at various current values and with reversing the current. A difference in voltage was found for forward and reverse current directions near Tc. The observed directionality of...

In this paper we analyze threshold voltage and body coefficient (Υ) on varying the oxide thickness in CNTFET. Simulation analysis of drain current and drain voltage characteristic is discussed and found that due to decreasing nature of quantum capacitance in CNTFET, the factor (Υ) has still impact on device and it is not negligible in deep nano regime. We also observed from simulation on nanohu...

Conduction characteristics of amorphous InGaZnO thin-film transistors were investigated by applying constant drain current with gate bias (V GS) modulation. Constant drain current in the off-current (I off) level from the transfer characteristic was applied to the drain electrode and the measured drain voltage with the gate bias sweep. The normalized channel conductance (G d) characteristics we...

The basic principles of work of proton exchange membrane fuel cell (PEMFC) are presented. The real experiments with PEMFC are made. Current – voltage characteristic in electrolyses, voltage, current and power characteristics of PEMFC are given. The efficiencies at different operating modes are made. The final conclusion about characteristics and efficiency of PEMFC are derived.

The exponential behaviour of the voltage-to-current characteristic is of primary importance because it enables us to construct a current source, which delivers a current that is proportional to the absolute temperature (PTAT). This can be used to implement a mechanism of temperature compensation in a bandgap reference circuit [8]. The conventional diode has an exponential voltage-to-current rel...

We have used electrochemical anodic oxidation to form gate oxides on strained n-channel Si:SiGe quantum wells. The oxides are characterized by current–voltage and capacitance–voltage measurements. Comparison of measured and calculated electron sheet densities in the quantum well, indicates that the oxide growth does not cause degradation of the Si:SiGe material. This is confirmed by low-tempera...

Histrionicotoxin, a toxin isolated from skin secretions of a Colombian arrow poison frog, Dendrobates histrionicus, decreased the amplitude and time-course of the endplate current, and altered the voltage dependence of the half-decay time. In addition, the toxin produced a characteristic nonlinearity in the current-voltage relationship of the endplate current when 3-s voltage conditioning steps...