Stable operation of grid-connected converters with the LCL filter is essential. Variations grid impedance and consequently, variations resonance frequency, can push system toward instability. Also, delay that comes from sampling PWM, could worsen stability condition. Thus, control should be designed by considering these non-ideal factors. To fill in this gap, brief presents an effective but sim...

In this paper, a universal current-mode filter for simultaneously providing all the general responses such as low-pass, band-pass, high-pass, notch and all-pass responses, is proposed. The proposed biquad employs only two grounded capacitors and three identical plus-type current-controlled conveyors (CCCII+s) thus it can easily be realized in integrated circuit (IC) process. Nevertheless, it re...

A two-input two-output (TITO) current-mode universal biquad using only four dual-output operational transconductance amplifier (DO-OTAs) and two grounded capacitors is described. By appropriately connecting the input and output terminals, the proposed circuit can provide lowpass, bandpass, highpass, bandstop and allpass current responses. The filter also offers an independent electronic control...

In this brief, it is shown that two of the recently reported voltage mode and current mode current conveyor-based all-pass circuits can be generated from the well known single input op amp all-pass configuration. It is also found that two other voltage mode current conveyor-based all-pass circuits are related directly to the differential input op amp all-pass structure. Several new grounded cap...

A new CMOS programmable balanced output transconductor (BOTA) is introduced. The BOTA is a useful block for continuous-time analog signal processing. A new CMOS realization based on MOS transistors operating in the saturation region is given. Application of the BOTA in realizing bandpass–lowpass–allpass–notch biquad mixed mode filter using four BOTAs and two grounded capacitors and in realizing...

In active noise control (ANC) headphones, the audio signal is modified together with primary if a feedback controller used. Although this problem can be alleviated an FIR model of secondary path, practical implementations are usually restricted by its computational complexity. paper, cascade biquad filters used to compensate for modification system. Instead using classical identification method...

In this paper a simple shortcoming model for a CMOS exchanged capacitor low pass channel is tried. The exchanged capacitor (SC) low pass channel circuit is modularized into practical macros. These useful macros incorporate OPAMP, switches and capacitors. The circuit is distinguished as flawed if the recurrence reaction of the exchange capacity does not meet the configuration detail. The sign st...