Title :
High field capacitance-temperature behavior of BaTiO3 ceramic disc capacitors
Author :
Campbell, C.K. ; Van Wyk, Jacobus Daniel ; Holm, Max Friedrich Karl ; Schoeman, Jurgens Johannes
Author_Institution :
Fac. of Eng., Rand Afrikaans Univ., Johannesburg, South Africa
fDate :
12/1/1990 12:00:00 AM
Abstract :
Experimental and theoretical studies are reported on the capacitance-temperature (CT) characteristics of an undoped BaTiO3 high-voltage (1000 V) nonlinear ceramic disc capacitor with a 3.6:1 capacitance ratio over the DC bias voltage range, which has application to power electronics snubbers. CT responses for both the zero-bias and 1000-V-bias conditions are modeled in terms of the polarization of permanent dipole moments. High field modeling employed a modified Langevin function, incorporating an empirical domain sensitivity parameter together with a smeared Curie temperature
Keywords :
barium compounds; capacitance; capacitors; ceramics; ferroelectric devices; overvoltage protection; power electronics; 1000 V; BaTiO3; DC bias voltage range; capacitance-temperature behavior; ceramic disc capacitors; dipole moment polarisation; empirical domain sensitivity parameter; high-field capacitor modelling; modified Langevin function; nonlinear ceramic disc capacitor; permanent dipole moments; power electronics snubbers; smeared Curie temperature; undoped high-field ceramic capacitors; Breakdown voltage; Capacitance; Ceramics; Diodes; Inductance; Polarization; Power electronics; Snubbers; Switched capacitor circuits; Switches;
Journal_Title :
Components, Hybrids, and Manufacturing Technology, IEEE Transactions on
