Recent efforts in the design of wireless RF transceivers focus on high integration and multi-standard operation. Higher integration can be obtained by using receiver architectures, such as wide-band IF with double conversion (WIF), that perform channel select filtering on-chip at baseband. Performing this baseband channel select filtering in the digital domain allows for the programmability nec...

In this paper, the authors present implementation of a number of low power FIR filter architectures to design reuse-able, programmable and parameterized soft FIR filter IP Cores and compare their performance in terms of area and power. An overall 22.1% power saving is achieved. The paper provides an analysis of the programmable cores and the impact of their constituent components on the overall...

This paper describes a low-power second-order filter for a continuous-time chopper stabilized capacitive sensor interface, integrated with a fully differential post-CMOS surface-micromachined MEMS pressure sensor. The circuit uses a single-ended folded-cascode operational amplifier and two GM-C filters connected in cascade. The circuit is realized in a 0.18 μm CMOS process and offers differenti...

In 2006 the set up of one test bench for superconducting magnets of FAIR was finished at GSI. A second one is under construction. After commissioning of both test stands magnetic measurements of up to 8 superconducting magnets per month will be possible. The dedicated power converter must supply DC currents and ramped currents up to 11000A and provide output voltages up to +/-100V. This gives a...

In Digital Signal Processing FIR Filter is used to remove the noise or unwanted components from a signal. This paper Presents an efficient VLSI Architecture of a Multi-Standard Digital Up Converter (DUC) based FIR filter that is used to remove the noise in the received channel data bits effectively. The proposed DUC based FIR filter consists of weight update block with Shift add architecture to...

Indian electrical industries supply alternators for rectifier loads, arc furnace loads and thyristor load applications to various customers. In such cases the generator line currents are not sinusoidal but are like trapezoidal which are due to harmonics .They may cause problems for utilities and industrial power system. Single tuned (ST) filter is the most commonly used device for both harmonic...

Active filters have proven to be more effective than passive techniques to improve power quality and to solve harmonic and power factor problems due to nonlinear loads. This paper proposes a control scheme based on the instantaneous active and reactive power. The inverter of this active filter is a three-phase, two-level converter. Space vector technique is used as modulators and pattern genera...