In this paper, we propose a technique for designing low-power fast Fourier transform (FFT) processors with applications in next generation wireless LAN and wireless access systems. The proposed low-power technique is based on the general principle of soft digital signalprocessing [4] where voltage overscaling (VOS) [4] (scaling the supply voltage beyond the critical voltage vdd-crit required fo...

Level shifter is an interfacing circuit which can interface low core voltage to high input-output voltage. It allows communication between different modules without adding up any extra supply pin. The main objective of the work is to minimize power dissipation in shifter circuit, which is due to different supply voltages in the circuit. The proposed method uses MTCMOS technique, which is one of...

In passive matrix liquid crystal displays (PMLCDs), multiplexing is achieved by using intrinsic non-linear electro-optic characteristics of the displays. Supply voltage can be reduced considerably as compared to the conventional as well as multi-line addressing techniques by using displays with steep electro-optic characteristics. The technique is demonstrated by driving a display with the hybr...

A comprehensive approach to the design of UPFC controllers (power-flow controller, DC-voltage regulator and damping controller) is presented. Studies reveal that damping is adversely affected by the incorporation of a DC-voltage regulator. Investigations were carried out to understand the relative effectiveness of modulation of thc UPFC control signals inR, SB, niE and <5£ on damping of the sys...

A curvature compensation technique for bandgap voltage references that utilizes an adaptive reference temperature is presented. This compensation technique is intended for high-resolution temperature-stable analogdigital converters. A test circuit had been designed in a 0.6 pn CMOS technology to implement this technique. The reference voltage has a simulated temperature coefficient of 2.3 ~ p m...

A curvature compensation technique for bandgap voltage references that utilizes an adaptive reference temperature is presented. This compensation technique is intended for high-resolution temperature-stable analogdigital converters. A test circuit had been designed in a 0.6 μm CMOS technology to implement this technique. The reference voltage has a simulated temperature coefficient of 2.3 ppm/ ...

THE RELATIONSHIP between the potential difference across an excitable membrane and the current that flows through the membrane has been investigated on the squid giant axon by the use of the so-called voltage-clamp technique (7, 17). This technique involves the sudden elevation of the membrane potential and, by an automatic control of the membrane current, the maintenance for a certain period o...

We present an algorithmic noise-tolerance (ANT) technique for designing low-power DSP systems. The proposed technique achieves substantial energy savings via voltage overscaling, whereby the supply voltage is scaled beyond the minimum supply voltage Vdd−crit at which the architecture operates correctly for a given throughput specification. The resulting input-dependent soft errors are corrected...

To achieve the most energy-efficient operation, this brief presents a circuit design technique for separating the power supply voltage (VDD) of flip-flops (FFs) from that of combinational circuits, called the higher voltage FF (HVFF). Although VDD scaling can reduce the energy, the minimum operating voltage (VDDmin) of FFs prevents the operation at the optimum supply voltage that minimizes the ...

A new circuit technique for voltage gain enhancement in CMOS op amp design suitable for low voltage and high speed operation is presented in this paper. A negative conductance is used to cancel the positive output conductance of an amplifier thereby reducing the total equivalent output conductance and increasing the voltage gain of the amplifier. The negative conductance is derived from the out...