In this paper, a new algorithm is implemented to solve optimal placement of capacitors in radial distribution systems in two ways that is, optimal placement of fixed or Discrete size of capacitor banks (Variable Locations Discrete sizing Capacitor banks-VLDC) and optimal sizing and placement of capacitors (Variable Locations Continues sizing of Capacitors-VLCC) for real power loss minimization ...

Asymptotic Waveform Estimator (AWE) is a waveform estimator for general RC networks which can be used to estimate signal propagation delays through VLSI interconnects. The interconnects are modeled as resistors and capacitors connected such that each node has a capacitance to ground. State variable approach is used to obtain the steady-state asymptotes and the Forward Euler approximation for th...

An RF low phase noise voltage-controlled oscillator is implemented with micromachined IC-compatible variable capacitors and three-dimensional coil inductor. Unlike conventional on-chip passive devices, the micromachined variable capacitors achieve a high-Q value above 60 at 1 GHz with a 15% tuning range for a nominal 2 pF capacitance with 3 V tuning voltage. Three-dimensional inductors minimize...

This paper presents two Current Differencing Transconductance Amplifiers (CDTA)–based current–mode resistors–less variable frequency third–order Quadrature Oscillators (TOQO). The proposed TOQOs consist of minimum number of active and passive components, especially the first TOQO, only two CDTAs and three capacitors are used in it. The two TOQOs are completely resistor–less, and the capacitors ...

Inductively coupled plasma source operating at low pressure to improve uniform and high plasma density is widely employed for microelectronic device fabrication. As the size of the inductively coupled source increases, it has the problems related to the electrical characteristic and non-uniformity. To improve the non-uniformity, the roles of the parallel resonance antenna are presented. The two...

A current mode variable frequency sinusoidal oscillator employing single differential difference current conveyor is proposed. The circuit uses two capacitors and three resistors which are minimum in number. The frequency of oscillation can be adjusted by a grounded resistor without disturbing the oscillation condition. The presented topology was synthesized using an innovative genetic algorith...

In wireless communication systems, passive elements including tunable capacitors and inductors often need high quality factor ( -factor). In this paper, we present the design and modeling of a novel high -factor tunable capacitor with large tuning range and a high -factor vertical planar spiral inductor implemented in microelectromechanical system (MEMS) technology. Different from conventional ...

This paper reports on the development of a micromachined parallel-plate tunable capacitor with a wide tuning range. Different from conventional two-parallel-plate tunable capacitors, this tunable capacitor consists of one suspended top plate and two fixed bottom plates. One fixed plate and the top plate form a variable capacitor, while the other one provides necessary electrostatic actuation. A...

The objective of the work at Chalmers test station is to carry out research, maintain and run the wind turbine at the plant. The station is used for research projects and as a demonstration and lab facility. The turbine is equipped with a permanent magnet direct-driven generator and an electrical system with a DC link suited for variable speed operation. Research focuses mainly on the generator...