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Four‐segment oscillator circuit for piezoelectric sensing devices
Author(s) -
Satoh Tomio,
Izyan Ruslan Ruzaini,
Katou Yousuke,
Marumo Masahide,
Akitsu Tetsuya
Publication year - 2011
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.20656
Subject(s) - colpitts oscillator , vackář oscillator , pierce oscillator , crystal oscillator , voltage controlled oscillator , overtone , oscillation (cell signaling) , electrical engineering , negative resistance , cmos , relaxation oscillator , optoelectronics , inverter , rlc circuit , electronic engineering , materials science , engineering , physics , resonator , voltage , chemistry , quantum mechanics , biochemistry , capacitor , spectral line
Novel circuit design is proposed for a low‐frequency quartz crystal oscillator circuit that consists of four segments. The characteristics of the negative resistance in a low‐frequency Complementary Metal Oxide Semiconductor (CMOS)‐inverter quartz oscillator were reviewed for the two modes of SC (stress‐compensated) cut mode and the overtone of low‐frequency mode; separation of two modes and suppression of overtone oscillation were demonstrated successfully. Experimental results and an estimate of the absolute value of the negative resistance are presented for the four‐segment oscillator circuit and the conventional Colpitts circuit and two new types of oscillator circuits. © 2011 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.