An original low-voltage current-mode high-accuracy function synthesizer circuit will be presented, allowing to implement a multitude of continuous mathematical functions. The dynamic range is strongly extended as a result of the superior-order approximation of the implemented functions. The current-mode operation and the independence of the circuit performances on technological parameters are r...

A binary genetic encoding (BGE) representation for the automatic synthesis of mixed-mode circuit topologies, is introduced. First, the genetic encoding of unity-gain cells (UGCs), such as voltage (VF) and current followers (CF), and voltage (VM) and current mirrors (CM), is presented. New BGEs for the VM and CM are introduced. Second, the UGC’s chromosomes are combined to synthesize mixed-mode ...

In this communication, the authors propose a current-mode analog circuit solution for the defuzzifying step required for the fuzzyknowledge-based control (FKBC) of switching DC-DC converters. Considering the modulation of pulse widths which is needed for the control of switched power plants, the division operation at the output layer of a fuzzy inference controller takes advantage of the implic...

A high-speed and high-accuracy continuous-time common-mode feedback block (CMFB) is presented. To satisfy speed and accuracy requirements, some modi ̄cations have been applied on di®erential di®erence ampli ̄er (DDA) CMFB circuit. The proposed method is applied to a folded cascode op-amp with power supply of 3.3V. In order to verify the proposed circuit, simulations are done in 0.35 m standard CM...

A new current-mode Tow-Thomas biquad filter based on employing current differencing transconductance amplifiers (CDTAs) is introduced. The filter circuit uses two grounded capacitors and realizes a lowpass (LP) and a bandpass (BP) responses, simultaneously. The proposed circuit is electronically tunable by adjusting the biasing current of the CDTAs. The circuit requires no component matching co...

A passive piecewise-linear function approximation circuit with current input and output is presented. The gain of the circuit is controlled by switching diodes. The breakpoints and slopes of its inputoutput characteristic are set by resistances. Relations for computation of these resistances are given. As an application of the proposed circuit, a triangle to sine wave shaper is shown. Computer ...

2 Basic implementation ......................................................................................................... 4 2.1 The optoelectronic parts ......................................................................................................... 4 2.2 The electronic circuit .........................................................................................................

A fuzzy based circuit to recognize circular patterns is proposed in this paper. The proposed algorithm calculates the center coordinates of the target patterns. The simple algorithm and exemption from the use of template patterns as well as multipliers enable the proposed circuit to implement on the hardware of an economical scale. Furthermore, the circuit design by using current-mode technique...

ATPG vectors for a combinational circuit exhibit correlations among the bits of a test vector. We propose a BIST/decompressor circuit design methodology using spectral methods which utilizes the correlation information. This circuit serves dual purposes. It generates BIST vectors that are similar to the ATPG vectors with higher test coverage as compared to random and weighted random vectors. Th...