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•
01 Nov 2002TL;DR: A switch mode controller circuit includes a hysteretic comparator HYST_COMP for monitoring an output of a switch mode circuit; a standard comparator PHASE-COMP as discussed by the authors for monitoring a phase of the circuit.
Abstract: A switch mode controller circuit includes: a hysteretic comparator HYST_COMP for monitoring an output of a switch mode circuit; a standard comparator PHASE_COMP for monitoring a phase of the switch mode circuit; a logic block having a first input coupled to a clock signal generator Oscillator, a second input coupled to an output of the hysteretic comparator HYST_COMP, and a third input coupled to an output of the standard comparator PHASE_COMP, wherein the logic block generates switching cycles based on a fixed ON/OFF time during a first part of a cycle and based on a hysteretic control during a second part of the cycle.
12 citations
TL;DR: A mixed analogue-digital window comparator is presented whose boundaries can be programmed independently, with untrimmed matching accuracy as good as 0.1%.
Abstract: A mixed analogue-digital window comparator is presented whose boundaries can be programmed independently, with untrimmed matching accuracy as good as 0.1%. Only one voltage reference is needed and its accuracy does not affect the precision with which the width of the comparison window is defined.
12 citations
01 Dec 2012
TL;DR: In this article, a new current comparator is proposed which offers high speed and high resolution while maintaining low power dissipation, and the design improves upon previous current comparators by modifying the given gain stage which leads to up to 83% improvement in delay.
Abstract: In this paper a new current comparator is proposed which offers high speed and high resolution while maintaining low power dissipation. The design improves upon previous Traff current comparator by modifying the given gain stage which leads to up to 83% improvement in delay. Simulation results performed on SPICE using TSMC 0.18µm CMOS technology demonstrate that proposed current comparator has a resolution of ± 10nA and delay of 0.86ns at ± 1µA input current. Performance for lower supply voltages is also reported.
12 citations
Patent•
14 Jan 2004TL;DR: In this article, an input-output circuit sending and receiving a signal to and/or from an electronic device includes a driver for supplying signal to the electronic device, a comparator provided parallel to the driver for receiving signal from the device, relaying circuit provided between the comparator and the device in series with the device.
Abstract: An input-output circuit sending and/or receiving a signal to and/or from an electronic device includes a driver for supplying a signal to the electronic device, a comparator provided parallel to the driver for receiving a signal from the electronic device, a relaying circuit provided between the comparator the electronic device in series with the comparator and the electronic device, a first transmission line for coupling the comparator and the relaying circuit electrically and a first switch for selecting either of short or open-circuited state of the first transmission line and the electronic device, wherein the impedance of the relaying circuit is larger than the impedance of the first transmission line.
12 citations
TL;DR: A high-sensitivity voltage-to-frequency converter (VFC) using an all-MOS voltage window comparator is presented in this work, which shows the worst-case linear range of the output frequency of the proposed VFC is 0-55.40MHz verified by simulations given a 0.9V input range.
12 citations