A layered heater is provided that comprises at least one resistive layer defining a circuit configuration, the circuit configuration comprising at least one resistive trace oriented relative to a heating target and comprising a material having temperature coefficient characteristics such that the resistive trace provides power commensurate with demands of the heating target. In one form, resistive traces of the resistive layer are a PTC material having a relatively high TCR and are oriented approximately perpendicular to a primary heating direction. In another form, resistive traces of the resistive layer are an NTC material having a relatively high BETA coefficient and are oriented approximately parallel to a primary heating direction.
申请公布号
WO2006032050(A1)
申请公布日期
2006.03.23
申请号
WO2005US33364
申请日期
2005.09.15
申请人
WATLOW ELECTRIC MANUFACTURING COMPANY;PTASIENSKI, KEVIN;MCMILLIN, JAMES;JULIANO, ROLANDO, O.;LAMMERT, GREGORY, J.
发明人
PTASIENSKI, KEVIN;MCMILLIN, JAMES;JULIANO, ROLANDO, O.;LAMMERT, GREGORY, J.