Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Lukas Langhammer"'
Publikováno v:
IEEE Access, Vol 12, Pp 105069-105079 (2024)
This paper compares the analytical approach and optimization algorithm for designing a two-bilinear-section-based two-port transfer function hinged on a numerical sweep with the intention of implementing fractional-order (FO) systems in many sensing
Externí odkaz:
https://doaj.org/article/73c1942490634c6ca16be61a605ad897
Autor:
Lukas Langhammer, Roman Sotner
Publikováno v:
IEEE Access, Vol 11, Pp 8600-8608 (2023)
The paper introduces a novel design solution of a reconnection-less reconfigurable filter based on the method of unknown nodal voltages (MUNV). The filter offers all standard 2nd-order transfer functions and the electronic adjustment of the pole freq
Externí odkaz:
https://doaj.org/article/881887701a1048bfa915c69e7152be91
Publikováno v:
Sensors, Vol 24, Iss 5, p 1558 (2024)
This paper presents electronically tunable current conveyors using low-voltage, low-power, multiple-input operational transconductance amplifiers (MI-OTAs). The MI-OTA is realized using the multiple-input bulk-driven Metal Oxide Semiconductor transis
Externí odkaz:
https://doaj.org/article/71edfe52a88f463e809bea0678165809
Publikováno v:
Sensors, Vol 23, Iss 19, p 8057 (2023)
The design of a low-pass-frequency filter with the electronic change of the approximation characteristics of resulting responses is presented. The filter also offers the reconnection-less reconfiguration of the order (1st-, 2nd-, 3rd- and 4th-order f
Externí odkaz:
https://doaj.org/article/6945bc2f67154ab0ad79faee98a52384
Reconnection–less Reconfigurable Fractional–Order Current–Mode Integrator Design With Simple Control
Publikováno v:
IEEE Access, Vol 9, Pp 136395-136405 (2021)
A design of a fractional-order (FO) integrator is introduced for the operation of the resulting solution in the current mode (CM). The solution of the integrator is based on the utilization of RC structures, but in comparison to other RC structure ba
Externí odkaz:
https://doaj.org/article/df10fdbe659442609a25b3be819d091f
Publikováno v:
IEEE Access, Vol 9, Pp 138026-138041 (2021)
A novel electronically reconfigurable fractional-order filter allowing independent electronic frequency tuning and switchless change of the transfer response by a single parameter between standard band-pass, inverting all-pass response and special ty
Externí odkaz:
https://doaj.org/article/724d2b2047004f6bbccc1fb72ab48030
Publikováno v:
Journal of Advanced Research, Vol 25, Iss , Pp 257-274 (2020)
The paper discusses a new design of a current–mode reconnection–less reconfigurable fractional–order (FO) low–pass filter of various orders. The filtering structure is based on a 4th–order leap–frog topology using operational transconduct
Externí odkaz:
https://doaj.org/article/95aa1357d92a41aeb10551c59aee0397
Publikováno v:
Elektronika ir Elektrotechnika, Vol 26, Iss 3, Pp 36-41 (2020)
A novel solution of a reconnection-less reconfigurable filter is being presented. The filter works in the current mode, voltage mode, and mixed mode (voltage tocurrent) offering sixteen transfer functions in total. The structure utilizes a voltage di
Externí odkaz:
https://doaj.org/article/fe47f19694a146f7aaa990f311e69cf3
Autor:
Roman Sotner, Jiri Petrzela, Jan Jerabek, Lukas Langhammer, Josef Polak, Winai Jaikla, Sunti Tuntrakool
Publikováno v:
Elektronika ir Elektrotechnika, Vol 26, Iss 2, Pp 42-47 (2020)
This paper introduces design of the linearly tunable quadrature voltage-controlled oscillator (VCO) using modern off-the-shelf active elements suitable for the design of electronically adjustable applications. The simplified topology was achieved usi
Externí odkaz:
https://doaj.org/article/f1d52458fd744c0991da7e0f14456c10
Publikováno v:
Elektronika ir Elektrotechnika, Vol 25, Iss 5, Pp 25-30 (2019)
This contribution presents and experimentally analyzes the idea how to reach the constant magnitude as well as the phase response in the fractional-order (FO) phase when shifting two-ports. The straightforward method employing the automatic gain cont
Externí odkaz:
https://doaj.org/article/9751e2dca9d8423e86022e8931e34298