This paper describes a comparator that uses a gain stage as a preamplifier in the preamplification mode and as a latch in the latch mode. This method effectively reduces the power consumption of the comparator. Using a 1.2um CMOS process and applying offset cancellation to all of the circuit, an offset of less than 100uV at comparison rates up to 6MHz, with only a 130uW power dissipation and 3V...

ADi erentially controlled monolithic LC-VCO along with a di erential charge pump are used to implement a di erential PLL for substrate noise immunity. The di erential VCO control is achieved with minimal increase in the power consumption and without sacri cing the tuning range. In a 0.5 m CMOS technology the measured VCO phase noise is -119dBc @1.0MHz and the tuning range is 26% of the 1.25GHz ...

FAST-EVP (Fluid-Dynamics Analysis Software Tool for Engine Virtual Prototyping) is a simulation tool for internal combustion engines running on cluster platforms; it has evolved from the KIVA-3V code base, but has been extensively rewritten making use of modern numerical software for linear systems, parallel programming techniques and advanced physical models. The software is currently in use a...

This paper presents a balanced receiver structure suitable for wireless infrared data communications. The receiver provides a fixed photodiode bias voltage with the use of a regulated cascode input stage. Together with an active feedback loop used to eliminate dc photocurrents, the receiver implements ac coupling without the need for matching capacitors. Differential sensing of the photodiode c...

This paper, presents a novel idea for analog current comparison which compares input signal current and reference currents with high speed, low power and well controlled hysteresis. Proposed circuit is based on current mirror and voltage latching techniques which produces rail to rail output voltage as a result of current comparison. The same design can be extended to a simple current comparato...

This paper presents a complete low-voltage 3V single supply analog lock-in amplifier (LIA) based on phase sensitive detection technique (PSD) for processing AC sensor signals buried in noise in embedded wireless applications. Reference and bias sensor signals are provided by a quadrature oscillator. Experimental results confirm the capability of the proposed lock-in amplifier to effectively rec...

In this work, Monte Carlo simulation is performed for InP Gunn diode with a notch-d-doped structure. It found that the presence of d-doped layer has improved performance significantly as compared to conventional notch The effect caused an increment in fundamental operating frequency and current harmonic amplitude diodes by modifying electric field profile within device. An device length 800 nm ...

Abstract We proposed a reconfigurable valley topological acoustic waveguide constructed using 2D phononic crystal (PnC) with C 3v symmetric arrangement of three rods in the unit cell. An interface between two types PnCs differently oriented cells exhibits high robustness transport waves via topologically protected state. Structural reconfiguration was introduced by continuous translation rod ar...

This paper proposes a liner low-dropout regulator (LDO) circuit using on-chip steady-state compensation technology. Firstly, bandgap reference is designed with low temperature drift and power consumption. Secondly, the adopted in LDO, which can avoid use of large off-chip capacitors reduce layout area LDO circuit. The performances are verified TSMC 180 nm CMOS process. Test results show that co...