This paper proposes a control strategy for Hybrid Active Series Power Filter (HASPF) based on a P+Resonant compensator. The proposed control uses Adaptive Notch Filter to isolate the harmonic content of the source current and a P+Resonant regulator to calculate the harmonic voltage signal necessary to properly tune the hybrid branch. This control strategy ensures multiple frequencies tuning by ...

The paper presents a new voltage-mode universal filter using a differential voltage current conveyor transconductance amplifier (DVCCTA). It has three inputs and single output. The proposed circuit can simultaneously realize low-pass, band-pass, and high pass, band reject and all pass filter functions without changing the circuit topology and passive elements. The circuit exhibits a good freque...

A new configuration for realizing currentmode multifunction filter using current feedback amplifiers for a single current input source is presented. The proposed current-mode circuit realizes simultaneously low pass, high pass and band pass filters where as notch and all-pass filter functions can also be realized by addition and/or subtraction of various filter functions without any substantial...

An ideal blackbody resides inside a cavity in a medium (heat bath) of temperature T that is also an ideal blackbody. If the small black body is initially at temperature T , could its temperature evolve to an equilibrium temperature T ′ different from T if the inner surface of the cavity were covered with a passive filter? For example, the filter might be an ideal transmitter for light of some w...

Increasing demands on circuits with low supply voltage and low power consumption lead to the realization of analogue circuits working in the current-mode. In this paper a new topology is presented of multifunctional frequency filter SIMO (Single Input Multiple Output) working the in currentmode. The proposed circuit is realized using four second-generation current conveyors and six passive elem...

Mine drainage waters vary considerably in the range and concentration of heavy metals they contain. Besides iron, manganese is frequently present at elevated concentrations in waters draining both coal and metal mines. Passive treatment systems (aerobic wetlands and compost bioreactors) are designed to remove iron by biologically induced oxidation/precipitation. Manganese, however, is problemat...

In this paper, a new electronically tunable current-mode universal filter with three-input one-output employing only two translinear current conveyors and two grounded capacitors is presented. The proposed configuration provides lowpass, bandpass, highpass, bandstop and allpass current responses by appropriately connecting the input signals. The output terminal possesses high-impedance level wh...

Most single-phase inverters, being sourced by fuel cell stacks (FCSs), subject the stacks to reflected low-frequency (120 Hz) current ripples that ride on average dc currents. The ripple current impacts the sizing and efficiency of the FCS. As such and typically, a passive or active filter is required at the input of the inverter (or output of the FCS) to mitigate the ripple current. Toward tha...

This dissertation presents voltage stabilization techniques for flying capacitors used in soft-switching multilevel active power filters. The proposed active filter has proved to be a solution for power system harmonics produced by static high power converters. However, voltage unbalance of the clamping capacitors in the active filter in practical applications was observed due to its unequal pa...

We discovered three errors in our analysis for this paper, which have slight effects on the results we reported in Sections 1, 4, and 5. The first error was a syntax error in the filter we used to exclude spoofed source traffic; this filter erroneously excluded 170,501 and 153,974 /24 blocks respectively from the UCSD and MERIT darknet traffic samples, although some of these we observed at the ...