Active-only variable-gain low-pass filter for dual-mode multiphase sinusoidal oscillator application

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F17%3APU123755" target="_blank" >RIV/00216305:26220/17:PU123755 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.3906/elk-1702-159" target="_blank" >http://dx.doi.org/10.3906/elk-1702-159</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3906/elk-1702-159" target="_blank" >10.3906/elk-1702-159</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Active-only variable-gain low-pass filter for dual-mode multiphase sinusoidal oscillator application

Popis výsledku v původním jazyce

This research presents the active-only low-pass (LP) filter whose pole frequency and gain are independently tunable by means of the bias current manipulation. The realization of the proposed LP filter required one operational amplifier (OA), two operational transconductance amplifiers (OTA), and two MOS transistors. The multiphase sinusoidal oscillator (MSO) was subsequently realized by cascading n LP filters (n = 3) and loop-backing the output of the last LP filter to the input of the first LP filter. Simulations were carried out and the results revealed that the MSO could simultaneously achieve the low impedance voltage and high impedance current outputs without the circuit topology alteration. The frequency of oscillation (FO) and the condition of oscillation (CO) could also be electronically tuned without disturbing each other. Furthermore, the sinusoidal signal of the MSO exhibited a relatively low total harmonic distortion (THD) of around 0.8% at 2.75MHz. To verify, a prototype of the active-only LP-based MSO (n = 3) was constructed and the experiments performed. The experimental findings were agreeable with the simulation results.

Název v anglickém jazyce

Active-only variable-gain low-pass filter for dual-mode multiphase sinusoidal oscillator application

Popis výsledku anglicky

This research presents the active-only low-pass (LP) filter whose pole frequency and gain are independently tunable by means of the bias current manipulation. The realization of the proposed LP filter required one operational amplifier (OA), two operational transconductance amplifiers (OTA), and two MOS transistors. The multiphase sinusoidal oscillator (MSO) was subsequently realized by cascading n LP filters (n = 3) and loop-backing the output of the last LP filter to the input of the first LP filter. Simulations were carried out and the results revealed that the MSO could simultaneously achieve the low impedance voltage and high impedance current outputs without the circuit topology alteration. The frequency of oscillation (FO) and the condition of oscillation (CO) could also be electronically tuned without disturbing each other. Furthermore, the sinusoidal signal of the MSO exhibited a relatively low total harmonic distortion (THD) of around 0.8% at 2.75MHz. To verify, a prototype of the active-only LP-based MSO (n = 3) was constructed and the experiments performed. The experimental findings were agreeable with the simulation results.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

TURK J ELECTR ENG CO

ISSN

1300-0632

e-ISSN

1303-6203

Svazek periodika

2017 (25)

Číslo periodika v rámci svazku

, IF: 0.578

Stát vydavatele periodika

TR - Turecká republika

Počet stran výsledku

15

Strana od-do

4326-4340

Kód UT WoS článku

000412571400067

EID výsledku v databázi Scopus

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