FAULT TOLERANT HEATER CIRCUIT

摘要

In one embodiment, a heater circuit includes a number of groups which each include a number of resistive elements arranged in an electrically parallel circuit that are coupled between two power terminals in a series circuit. Each resistive element is disposed on the surface of a structure and physically parallel to other resistive elements in the group and to resistive elements in other groups. The width and/or thickness of the resistive elements may be varied to control the heat generated in particular regions.