This paper investigates the dynamic behavior of Gas Metal Arc Welding (GMAW) process for two types of power supplies –inverter and rectifier- for short circuit transfer mode. The large ripples on the rectifier power source are able to perturb the metal transfer mode. In this experimental work some operating points in the short circuit mode have been selected using an automatic pipeline welding ...

introduction: the risk of morbidity and mortality increases in neonates admitted to the neonatal intensive care units (nicus). various factors contribute to the prognosis of these newborns. in the current study, we aimed to investigate the role of mode of delivery on short-term neonatal outcomes. methods: this retrospective study was conducted on 215 neonates admitted to the nicu of shohada-e-t...

A receiver subsystem for current mode interconnects is presented in the present paper. It is shown that current mode interconnects shows better performance compared to voltage mode interconnect circuits. The current mode interconnect system using proposed receiver subsystem shows about 15% lesser latency and 40% increased throughput. Effect of voltage scaling on power dissipation for current mo...

In recent years a host of “new” current-mode continuous-time filters have been proposed. Although there is widespread acceptance of the premise that current-mode structures are more suitable for high frequency and low voltage applications than their voltage-mode counterparts, a valid comparison of voltage-mode and current-mode structures is conspicuously absent in the literature. In an attempt ...

A new quadrature oscillator circuit using a single differential voltage current conveyor transconductance amplifier (DVCCTA) and four all grounded passive elements is presented. The proposed circuit provides two current quadrature outputs at high impedance and three voltage quadrature outputs simultaneously. The oscillation condition and oscillation frequency are independently controllable. The...

In addition to the recently proposed full-wave rectifier by Prommee et al. [25] using voltage-mode (VM) two-cell winner-takes-all (WTA) circuit, we present currentmode (CM) precision full-wave rectifier using CM two-cell WTA circuit. The popular Lazzaro’s CM WTA circuit has been employed for the purpose and there is no requirement of inverting the input signal as in [25]. Also, dual complimenta...

A novel ultra-high compliance, low power, very accurate and high output impedance current output stage (COS) with extremely high output current drive capability is proposed in this paper. The principle of operation of this unique structure is discussed, its most important formulas are derived and its outstanding performance is verified by HSPICE simulation in TSMC 0.18µm CMOS, BSIM3, and Level4...