Many ac quantized Hall resistance experiments have measured significant values of ac longitudinal resistances under temperature and magnetic field conditions in which the dc longitudinal resistance values were negligible. We investigate the effect of non-vanishing ac longitudinal resistances on measurements of the quantized Hall resistances by analyzing equivalent circuits of quantized Hall eff...

Current-voltage ( I V ) characteristics of linear and annular discrete arrays of underdamped small Josephson junctions with different values of single loop inductances are calculated numerically and compared with those obtained for continuum long Josephson junctions. The resonances between the moving fluxon and the linear waves caused by the array discreteness induce steps on t h e / V c u r v ...

Received Jan 15, 2017 Revised Mar 15, 2017 Accepted Mar 29, 2017 In high power DC applications, the single-phase DC-DC converter will face large voltage and current stress in each control switch and thereby the power handling capacity is less. To overcome this problem, three-phase DC-DC converter is used and it is suitable for high power applications with reduced number of switches as compared ...

We derive a near-time-optimal trajectory for wheeled mobile robots (WMRs) satisfying the following: 1) initial and final postures/velocities as well as 2) battery voltage and armature current constraints, under assumptions of simplified dynamics and constant translational/rotational velocity sections. We use a simplified dynamic model for WMRs neglecting inductances of motor armatures and divid...

Other than by reducing power, extending battery life in portable microelectronics amounts to increasing power efficiency, which when coupled with accuracy, translates to increasing filter inductance. The problem with higher inductances is magnetic cores require more space to prevent the onset of saturation, so accuracy and efficiency (via their need for bulky inductors) hamper the miniaturizati...

We present a formulation of the determination of the impedance between any two nodes in an impedance network. An impedance network is described by its Laplacian matrix L which has generally complex matrix elements. We show that by solving the equation Luα = λαuα with orthonormal vectors ua , the effective impedance between nodes p and q of the network is Zpq = ∑ α(uαp−uαq)/λα , where the summat...

Structural vibration can be reduced by shunting an attached piezoelectric transducer (PZT) with an electrical impedance. Current shunt circuit designs, e.g. a single-mode inductor–resistor network, typically require large inductance values of up to thousands of henries. In practice, discrete inductors are limited in size to around 1 H. By placing an additional capacitance across the terminals o...

To develop a fault tolerant machine with the least redundant phases, the inductance model and a nonlinear radial air gap flux density model of a new four-phase doubly salient electromagnetic generator (DSEG) is presented and verified by the finite element analysis (FEA) and experiments result in this paper. With the proposed formulas, a new four-phase 24-slot 18-pole DSEG without cogging torque...

A simple scheme for the realization of terahertz (THz) fundamental-mode closed-stopband composite right/left-handed leaky-wave antennas (CRLH LWAs) is presented. The proposed CRLH LWAs are reconstructed by graphene-based coplanar waveguide (CPW) transmission line supercells. Their shunt inductances achieved narrow graphene strips two unit cell structures halved. designed and confirmed numerical...

In this paper, we study the extraction of some analytical solutions to nonlinear perturbed sine-Gordon equation with long Josephson junction properties. The model studied was formed observe properties separated by two superconductors. Moreover, it is also used explain effect arising in highly nature junctions. This provides shunt inductances realize a left-handed transmission line. A powerful s...