This paper presents a brief introduction of some prominent current mode circuits which have been finding its attention in the area of analog signal processing. High performance current differencing transconductance amplifier (CDTA) has been realized using CMOS, provides a wider bandwidth, low power consumption and requires less space in integrated circuits implementation. Pspice simulation resu...

The main building block of analog electronics is a voltage amplifier: an electronic device capable of amplifying small alternating current (AC) voltage signals. Many graphene analog electronic devices, performing different functions, 1-5 have recently been proposed stemming from high carrier mobility 6,7 and ambipolar transport in graphene field effect transistors (FETs). However, none of these...

This paper presents an electronically controllable grounded capacitor quadrature oscillator using single multiple-output current controlled current differencing transconductance amplifier (MO-CCCDTA) as an active element. The proposed circuit employs a single MOCCCDTA, two grounded capacitors and one grounded resistor and offers the advantages of (i) independent control of condition of oscillat...

This paper presents the high-output-impedance current-mode multiphase sinusoidal oscillators (MSO) using voltage differencing current conveyor (VDCC)-based lossy integrators, which consist of one VDCC, grounded capacitor, and two resistors. The proposed oscillator can provide an odd-phase even-phase system without use additional amplifier. frequency oscillation (FO) is electronically tuned via ...

An electronic amplifier, amplifier, or (informally) amp is an electronic device that increases the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. Amplifier design relies on feedback mechanism. Offsets that accumulate in different stages of amplifier are corrected by feedback mechanism. ...

This paper provides electronic implementation of electrocardiograph (ECG) circuit by using instrumentation amplifier (IA) as bio-potential amplifier in such a manner which reduces noise, common voltage, DC offset value and RF interference from the existing circuit.Noise and common voltage can be removed from ECG using driven right leg circuit or by using isolator circuit. DC offset can be remov...

This paper presents a current-mode (CM) second-order filter, employing one so-called “Z Copy – Current Differencing Transconductance Amplifier” (ZC-CDTA), two grounded capacitors, and one virtually grounded resistor. The filter provides two current outputs of low-pass (LP) and band-pass (BP) types for driving independent loads, and one high-pass (HP) current output, flowing through one of the w...

High-power high-voltage dc power supply has been developed based on series resonant converter technology for a MW class RF amplifier. For low-voltage ripple, an IGBT inverter consisting of 1400 V-600 A devices is drives with a maximum switching frequency of 31.2 kHz. A performance test was carried out using an RF amplifier. We examined this power supply under two different conditions. One was w...

In this paper, we present an exact analysis of class DE amplifier outside optimum conditions. We derive analytical expressions of waveform equations. By using waveform equations, we derive initial values of current and voltage, switching voltage and the slope of switching voltage, output voltage and power conversion efficiency in steady state. We denote the behavior of class DE amplifier outsid...