A current-mode universal biquadratic filter is presented. The architecture has three input terminals, one output terminal using one differential difference current conveyor (DDCC), two grounded capacitors and two resistors. It can realize all standard second-order filter functions, which are, highpass, bandpass, lowpass, notch and allpass responses without changing the circuit topology. The pro...

Dalibor Biolek 1 Montree Siripruchyanun 2 Winai Jaikla 3 Department of Electrical Engineering, Military Academy Brno, Kounicova 65, 612 00 Brno, Czech Republic Department of Teacher Training in Electrical Engineering, Faculty of Technical Education, King Mongkut’s Institute of Technology North Bangkok, Bangkok, 10800, Thailand Electric and Electronic Program, Faculty of Industrial Technology, S...

The field of low-voltage low-power CMOS technology has grown rapidly in recent years; it is an essential prerequisite particularly for portable electronic equipment and implantable medical devices due to its influence on battery lifetime. Recently, significant improvements in implementing circuits working in the low-voltage lowpower area have been achieved, but circuit designers face severe cha...

In this work, an electronically tunable universal voltage-mode biquadratic filter with single input and five outputs is introduced. The proposed filter structure only employs three differential difference current conveyor transconductance amplifiers (DDCCTAs) and two grounded capacitors without needing any external passive resistor. All the five standard biquadratic filter functions; lowpass, b...

Department of Teacher Training in Electrical Engineering, Faculty of Technical Education, King Mongkut’s University of Technology North Bangkok, THAILAND. E-mail: [email protected] Electric and Industrial Program, Faculty of Industrial Technology, Uttaradit Rajabhat University, THAILAND Electric and Electronic Program, Faculty of Industrial Technology, Suan Sunandha Rajabhat University, THAILAND...

A Novel Switched capacitor Resonator circuit based on CCII is proposed. The new Circuit is the CCII based version of I2P Resonator. Key-Words: RESONATOR, CCII, SC Filter, SC Circuit

This paper presents a new structure of a bandgap circuit which can be programmed to get any desired output voltage. Unlike conventional bandgap circuits, the proposed bandgap circuit uses MOS transistors operating in subthreshold region instead of bipolar transistors to generate PTAT and IPTAT currents. Use of the current conveyor makes the circuit capable of being operated at lower supply volt...

In a recent paper, Chua [l] introduced three new network elements, namely, the mutator, the scalar, and the reflector. These, together with the rotator that he introduced earlier [2], form a family of four basic elements that prove to be useful in the area of nonlinear network synthesis as well as suggesting many unusual circuit applications. This correspondence extends the work of Chua by prov...

Conditioning a current source using OCCII-GIC for EIT systems Ali Zarafshani, Thomas Bach, Wei Wang and Chris Chatwin Instrumentation and Hardware, Bioelectrical Research Group, Engineering and Design, University of Sussex, England, BN19QT Sensatech Research, Brighton, England, BN2 0GP [email protected] Abstract: A multi-Frequency EIT has been developed to evaluate the permittivity spec...