Topic
Comparator applications
About: Comparator applications is a research topic. Over the lifetime, 2518 publications have been published within this topic receiving 26639 citations.
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Patent•
19 Dec 2003TL;DR: An oscillator circuit includes a capacitor, a current source for supplying a current to the capacitor device, a reference voltage, and a control circuit as mentioned in this paper, which resets the oscillator when the first and second inputs to the comparator are equal.
Abstract: An oscillator circuit includes a capacitor device, a current source for supplying a current to the capacitor device, a reference voltage, and a control circuit. The reference voltage is a first input to a comparator. An output of the capacitor device and an output of the current source are a second input to the comparator. The control circuit resets the oscillator circuit when the first and second inputs to the comparator are equal.
15 citations
Patent•
15 Nov 1960
15 citations
Patent•
27 Dec 1979
TL;DR: In this article, a carrier recovery scheme for phase modulated waves including phase-locked loops is presented, which includes a clock recovery circuit which generates a signal in response to a modulated carrier.
Abstract: A carrier recovery apparatus for phase modulated waves including phase-locked loops is operable to prevent false locks. The apparatus includes a clock recovery circuit which generates a signal in response to a modulated carrier, a first phase comparator responsive to the modulated carrier and the output of a VCO, a second phase comparator responsive to the first phase comparator and the clock signal, and a control device for superimposing the low frequency component of the output of the second phase comparator on the output of the first phase comparator or a loop filter which controls the VCO.
15 citations
Patent•
18 Jun 1980
TL;DR: In this paper, a digital phase comparator circuit consisting of a circuit connected to the output terminals of phase comparators and a circuit connecting to the input terminals is proposed to remove erroneous pulse output signals simultaneously appearing at output terminals due to propagation delay times of logic gates incorporated in the phase comparulator.
Abstract: of the Disclosure A digital phase comparator circuit comprises a digital phase comparator having output terminals and a circuit connected to the output terminals of the phase comparator and arranged to remove erroneous pulse output signals simultaneously appearing at the output terminals due to propagation delay times of logic gates incorporated in the phase comparator.
15 citations
TL;DR: In this paper, an ultra high-speed latched comparator using a controlled amount of positive feedback cell has been designed in TSMC 0.18 μm CMOS technique, which results in a reduction in the power consumption of the high speed comparator as well as clock feedthrough and the effect of charge injection.
Abstract: An ultra high-speed latched comparator using a controlled amount of positive feedback cell has been designed in TSMC 0.18 μm CMOS technique. Transmission gate (TG) switches are used to implement the preamplifier circuit. The use of TG switches results in a reduction in the power consumption of the high-speed comparator as well as clock feedthrough and the effect of charge injection. The simulation results demonstrate that it can work at 1.25 GHz suitable for high speed applications, and consumes 273.6 μW with a power supply of 1.8 V at 100 MHz and Monte Carlo simulation shows that the comparator has a low offset voltage approximately 0.499 mV.
15 citations