A 0.18-&amp;#x03BC;m-CMOS low-power reconfigurable low pass filter for multi-standard receivers

Bao, Kuan; Fan, X.; Wang, Zhigong

doi:10.1109/atc.2013.6698139

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…Lygiagretaus jungimo PRM (4.5 pav.) yra sudaryta iš n + 1 pasvertų rezistorių (Kladovščikov 2015, Bao et al 2013, Kiela et al 2016. Kiekvieno paskesnio derinimo rezistoriaus varža yra dvigubai didesnė už prieš tai buvusį.…”

Section: Sequential Switched Resistor Matrixunclassified

Belaidžio ryšio siųstuvų-imtuvų filtrų savitestavimo ir autokalibravimo metodų sukūrimas ir tyrimas

Kladovščikov¹

2020

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Section: Sequential Switched Resistor Matrixunclassified

Belaidžio ryšio siųstuvų-imtuvų filtrų savitestavimo ir autokalibravimo metodų sukūrimas ir tyrimas

Kladovščikov¹

2020

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“…Integrinių filtrų derinimo grandinės dalis, skirta filtro parametrams keisti, yra perjungiamųjų rezistorių ar kondensatorių matrica. Derinimo matricos, priklausomai nuo struktūros, gali būti valdomos tolydžiai arba diskrečiais žingsniais -tolydžiajam valdymui naudojami tranzistoriai arba varikapai (Amir-Aslanzadech et al, 2009;Khumsat ir Worapishet, 2012), o diskrečiajam -rezistoriai arba kondensatoriai (Xia et al, 2004;Du et al, 2006;Jiang et al, 2011;Oshima et al, 2004;Jin ir Dai, 2012;Bao et al, 2013;Kiela et al, 2017;Hwang et al, 2005). Derinimo matricų raida parodo siekiamybę kuo labiau sumažinti aktyvių RC filtrų parametrų variacijas, tačiau dažnai neatsižvelgiama į tokių matricų užimamą IG plotą.…”

Section: įVadasunclassified

“…3 pav.) sudaryta iš n + 1 pasvertų rezistorių (Bao et al, 2013;Kiela et al, 2016). Kiekvieno paskesnio derinimo rezistoriaus varža yra dvigubai didesnė už prieš tai buvusį.…”

Section: Derinimo Matricos Projektavimasunclassified

Design and Investigation of Resistor Matrix for Active Analog Rc Filters

Kladovščikov

Navickas

2020

Science - Future of Lithuania

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Resistor matrixes are widely used in active RC filters as well as in self-tuning systems. Using self-tuning systems for active RC filters, it is possible to automatically tune various parameters of filter – cut-off frequency, gain and quality of filter. Most recent multiband transceivers employ higher order filters for fine bandpass filtering, thus number of passive components increases. In this work, a novel resistor matrix structure and design method is proposed. Proposed resistor matrix structure compensates both integrated circuit process variations and temperature change. Proposed resistor matrix is designed using 0.18 μm TSMC CMOS technology node and investigated using Cadence Virtuoso software. For most accurate comparison of different resistor matrices, all of them were designed in same technology node using design techniques described in other authors’ works.

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“…A digital filter can be represented by two parameter vectors, a and b, where the lengths of a and b are p and q, respectively, and the first element of a is always 1, as follows: Or equivalently, we can express y[n] explicitly as: The low-pass chopper functions to pass the low-frequency signal and attenuate the high-frequency signal, which is suitable for high-frequency noise. For example, if the temperature or flow sensor has a low frequency, the low-pass chopper can be used to remove electrical noise generated by a motor [23][24][25][26].…”

Section: Filter Designmentioning

confidence: 99%

An Electromagnetic Lock Actuated by a Mobile Phone Equipped with a Self-Made Laser Pointer

Perng

Hsieh

2019

Electronics

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The main purpose of this study was to create an acousto-optic control lock device to convert electrical signals with a specific sound command using an acousto-optic conversion module, thereby improving the reliability and safety of opening or closing remote controlled door locks, such as car central locks or rolling doors. We used music playing through a smart phone speaker to create a special laser pointer to connect with the smart phone‘s auxiliary input. The laser pointer (wavelength of 630–650 nm and maximum output of 5 mw) lights up when the smart phone’s music starts playing at a music frequency matching the light frequency. When the solar panel receives light, it converts the frequency of the light signal into an electrical frequency signal. The current is amplified using the power amplifier and then the amplified current flows to the sound recognition module. The sound recognition module performs audio comparison on the set sound signal, and once the comparison is correct, the output voltage activates the electromagnetic switch on the door to open or close it.

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A 0.18-μm-CMOS low-power reconfigurable low pass filter for multi-standard receivers

Cited by 5 publications

References 8 publications

Belaidžio ryšio siųstuvų-imtuvų filtrų savitestavimo ir autokalibravimo metodų sukūrimas ir tyrimas

Belaidžio ryšio siųstuvų-imtuvų filtrų savitestavimo ir autokalibravimo metodų sukūrimas ir tyrimas

Design and Investigation of Resistor Matrix for Active Analog Rc Filters

An Electromagnetic Lock Actuated by a Mobile Phone Equipped with a Self-Made Laser Pointer

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