1,721,548 research outputs found
Current-feedback architecture for high-slew-rate and low-THD high-end audio amplifier
No full textThe design of a current-feedback (CF) amplifier for high end power audio applications, up to 200 W RMS, is presented. Measured results prove that the proposed scheme achieves optimal signal-to-noise ratios and total harmonic distortion levels on the entire audible frequency range. Thanks to the CF topology the amplifier also features high bandwidth and high slew-rate
Preface of Highly Integrated Low-Power Radars
No full textPreface on radar design at highly integration levels and its civil applications in automotive, biomedical and surveillance scenario
Integrated Bandgap Voltage Reference for High Voltage Vehicle Applications
No full textThis work presents a bandgap voltage reference (BGR) integrated in 0.25-mu m bipolar-CMOS-DMOS (BCD) technology. The BGR circuit generates a reference voltage of 1.22V. It is able to withstand large supply voltage variations of vehicle applications from 4.5 V, e.g., in case of cranking, up to 60-V, maximum value in case of emerging 48-V battery systems for hybrid and electrical vehicles. The circuit has an embedded high-voltage (HV) pseudo-regulator block that provides a more stable internal supply rail for a cascaded low-voltage bandgap core. HV MOS are used only in the pre-regulator block thus allowing the design of a BGR with compact size. The proposed architecture permits to withstand large input voltage variations with a temperature drift of a hundred of ppm/degrees C, a line regulation (LR) of few mV/V versus the external supply voltage and a power supply rejection ratio (PSRR) higher than 90 d
Highly Integrated Low-Power Radars Conclusions
No full textChapter 8 of Conclusions and final remarks in the
book HIGHLY INTEGRATED LOW-POWER RADARS, Artech House, 201
Radar Integration Levels, Technology Trends, and Transceivers
No full textChapter 2 of the book Highly Integrated Low-power Radars focused on integration levels for radar-on-single-chip or radar-on-single-boar
Real-time and low-power processing of 3D direct/inverse discrete cosine transform for low-complexity video codec
No full textThe 3D discrete cosine transform and its inverse (3D DCT/IDCT) extend the spatial compression properties of conventional 2D DCT to the spatio-temporal coding of 2D videos. The 3D DCT/IDCT transform is particularly suited for embedded systems needing the low-complexity implementation of both video encoder and decoder, such as mobile terminals with video-communication capabilities. This paper addresses the problem of real-time and low-power 3D DCT/IDCT processing by presenting a context-aware fast transform algorithm and a family of VLSI architectures characterized by different levels of parallelism. Implemented in submicron CMOS technology, the proposed hardware macrocells support the real-time processing of main video formats (up to high definition ones with an input rate of tens of Mpixels/s) with different trade-offs between circuit complexity, power consumption and computational throughput. Voltage scaling and adaptive clock-gating strategies are applied to reduce the power consumption versus the state of the art
Complexity Analysis, Algorithm and VLSI Architecture Design for Low-power Multimedia Systems
No full textSlew-rate boosted amplifier integrated in a digital input driver for automotive actuator control units
No full textThe paper presents a slew-rate boosted analog amplifier embedded in a digital input driver for automotive actuator control unit (ACU). The whole ACU integrated circuit has been realized in a 0.18 lm CMOS technology with embedded Flash memory. The slew-rate boosted amplifier allows to drive high capacitive loads of power FETs, with rise and fall time of few μs. The IC has been designed to face harsh automotive requirements such as extended ambient temperature range, from -40 to 160 °C, ESD of ±4 kV as proved by experimental measurements on the fabricated IC
Hardware-Software Implementing Platforms for Radar Digital Signal Processing
No full textChapter 3 of the book Highly integrated low-power
radars focused on hardware-software architectures for low power and highly-integrated radar signal processin
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