OSCILLATION SUPPRESSION COMPONENT INVESTIGATION: CAPACITANCE AS A FUNCTION OF TEMPERATURE AND VOLTAGE

MICHAEL GURR

ME304 FALL 2012

CERAMIC CAPACITORS

Most widely used type of capacitor

Two terminal, non-polar, passive device

Fixed capacitor with ceramic material serving as a dielectric

Composition of ceramic material determines dielectric properties

Have rated voltage and temperature ranges (i.e. tolerances)

CAPACITANCEThe ability of a body to store electric charge

With linear thermal expansion defined by

Factors in surface mount ceramic capacitance calculation include:

Dissipation factor

Dielectric withstanding voltage

Insulation/Heat resistance

Project will focus on the effects of temperature and sustained voltage on capacitance