Detail publikačního výsledku

Tunable Fully-Differential Filters Designed Using Signal-Flow Graphs Method

LANGHAMMER, L.; JEŘÁBEK, J.; POLÁK, J.

Originální název

Tunable Fully-Differential Filters Designed Using Signal-Flow Graphs Method

Anglický název

Tunable Fully-Differential Filters Designed Using Signal-Flow Graphs Method

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

Two new differential filtering structures of the 2nd order that are universal and operate in the current-mode designed using signal-flow graphs method are presented in this paper. Presented filters are also proposed in single-ended (S-E) forms in order to compare behavior of single-ended and fully-differential (F-D) structures. A multiple-output current follower (MO-CF) and digitally adjustable current amplifier (DACA) have been used to design the filters. Ability to tune the pole frequency without disturbing the quality factor of filters is achieved by changing the current gain of digitally adjustable current amplifiers suitably placed in the circuit structure. The proper function of the proposed filters is verified using PSpice simulations. Chosen simulation results of all proposed filters are presented and evaluated.

Anglický abstrakt

Two new differential filtering structures of the 2nd order that are universal and operate in the current-mode designed using signal-flow graphs method are presented in this paper. Presented filters are also proposed in single-ended (S-E) forms in order to compare behavior of single-ended and fully-differential (F-D) structures. A multiple-output current follower (MO-CF) and digitally adjustable current amplifier (DACA) have been used to design the filters. Ability to tune the pole frequency without disturbing the quality factor of filters is achieved by changing the current gain of digitally adjustable current amplifiers suitably placed in the circuit structure. The proper function of the proposed filters is verified using PSpice simulations. Chosen simulation results of all proposed filters are presented and evaluated.

Klíčová slova

Current amplifier; Current follower; Current mode; Frequency filter; Fully differential; Single ended

Klíčová slova v angličtině

Current amplifier; Current follower; Current mode; Frequency filter; Fully differential; Single ended

Autoři

LANGHAMMER, L.; JEŘÁBEK, J.; POLÁK, J.

Rok RIV

2016

Vydáno

20.09.2015

ISSN

1213-1539

Periodikum

Elektrorevue - Internetový časopis (http://www.elektrorevue.cz)

Svazek

6

Číslo

3

Stát

Česká republika

Strany od

38

Strany do

48

Strany počet

11

URL

http://elektrorevue.cz

BibTex

@article{BUT118259,
  author="Lukáš {Langhammer} and Jan {Jeřábek} and Josef {Polák}",
  title="Tunable Fully-Differential Filters Designed Using Signal-Flow Graphs Method",
  journal="Elektrorevue - Internetový časopis (http://www.elektrorevue.cz)",
  year="2015",
  volume="6",
  number="3",
  pages="38--48",
  issn="1213-1539",
  url="http://elektrorevue.cz"
}