Accurate automatic tuning circuit for bipolar integrated filters

Wim J.A. de Heij; W.J.A. de Heij; Klaas Hoen; Klaas Hoen; Evert Seevinck; E. Seevinck

doi:10.1109/ISCAS.1990.112327

Accurate automatic tuning circuit for bipolar integrated filters

Wim J.A. de Heij, W.J.A. de Heij, Klaas Hoen, Klaas Hoen, Evert Seevinck, E. Seevinck

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

An accurate automatic tuning circuit for tuning the cutoff frequency and Q-factor of high-frequency bipolar filters is presented. The circuit is based on a voltage controlled quadrature oscillator (VCO). The frequency and the RMS (root mean square) amplitude of the oscillator output signal are locked to the frequency and the RMS amplitude of a reference signal, respectively. Special attention is paid to the actual Q-factor in the oscillator. Experimental results for a breadboard circuit operating from 136 to 317 kHz are presented

Original language	Undefined
Title of host publication	ISCAS'90
Place of Publication	New Orleans, USA
Publisher	IEEE
Pages	-
Number of pages	0
DOIs	https://doi.org/10.1109/ISCAS.1990.112327
Publication status	Published - 1 May 1990
Event	IEEE International Symposium on Circuits and Systems, ISCAS 1990 - New Orleans, USA Duration: 1 May 1990 → 3 May 1990

Publication series

Name
Publisher	IEEE
Volume	2

Conference

Conference	IEEE International Symposium on Circuits and Systems, ISCAS 1990
Period	1/05/90 → 3/05/90
Other	1-3 May 1990

Keywords

METIS-113918
IR-17033

Access to Document

10.1109/ISCAS.1990.112327

00112327

Cite this

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title = "Accurate automatic tuning circuit for bipolar integrated filters",

abstract = "An accurate automatic tuning circuit for tuning the cutoff frequency and Q-factor of high-frequency bipolar filters is presented. The circuit is based on a voltage controlled quadrature oscillator (VCO). The frequency and the RMS (root mean square) amplitude of the oscillator output signal are locked to the frequency and the RMS amplitude of a reference signal, respectively. Special attention is paid to the actual Q-factor in the oscillator. Experimental results for a breadboard circuit operating from 136 to 317 kHz are presented",

keywords = "METIS-113918, IR-17033",

author = "{de Heij}, {Wim J.A.} and {de Heij}, W.J.A. and Klaas Hoen and Klaas Hoen and Evert Seevinck and E. Seevinck",

year = "1990",

month = may,

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T1 - Accurate automatic tuning circuit for bipolar integrated filters

AU - de Heij, Wim J.A.

AU - de Heij, W.J.A.

AU - Hoen, Klaas

AU - Seevinck, Evert

AU - Seevinck, E.

PY - 1990/5/1

Y1 - 1990/5/1

N2 - An accurate automatic tuning circuit for tuning the cutoff frequency and Q-factor of high-frequency bipolar filters is presented. The circuit is based on a voltage controlled quadrature oscillator (VCO). The frequency and the RMS (root mean square) amplitude of the oscillator output signal are locked to the frequency and the RMS amplitude of a reference signal, respectively. Special attention is paid to the actual Q-factor in the oscillator. Experimental results for a breadboard circuit operating from 136 to 317 kHz are presented

AB - An accurate automatic tuning circuit for tuning the cutoff frequency and Q-factor of high-frequency bipolar filters is presented. The circuit is based on a voltage controlled quadrature oscillator (VCO). The frequency and the RMS (root mean square) amplitude of the oscillator output signal are locked to the frequency and the RMS amplitude of a reference signal, respectively. Special attention is paid to the actual Q-factor in the oscillator. Experimental results for a breadboard circuit operating from 136 to 317 kHz are presented

KW - METIS-113918

KW - IR-17033

U2 - 10.1109/ISCAS.1990.112327

DO - 10.1109/ISCAS.1990.112327

M3 - Conference contribution

SP - -

BT - ISCAS'90

PB - IEEE

CY - New Orleans, USA

T2 - IEEE International Symposium on Circuits and Systems, ISCAS 1990

Y2 - 1 May 1990 through 3 May 1990

ER -