Control scheme for negative temperature coefficient of resistivity heaters
AssigneeGoodrich Corporation
InventorsAdam George, Mark James Didyk, Reid Philip Beery
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Abstract
A system for controlling a multi-zone resistive heater. The system includes a first zone of the multi-zone resistive heater formed from a material having a negative temperature coefficient of resistivity (TCR) and configured to receive a first power to generate thermal energy. The system further includes a second zone of the multi-zone resistive heater formed from the material having the negative TCR, separated from the first zone by a gap, and configured to receive a second power to generate the thermal energy.
Claims20
A system for controlling a multi-zone resistive heater, the system comprising:
- a first zone of the multi-zone resistive heater formed from a material having a negative temperature coefficient of resistivity (TCR) and configured to receive a first power to generate thermal energy;
- and
- a second zone of the multi-zone resistive heater formed from the material having the negative TCR, separated from the first zone by a gap, and configured to receive a second power to generate the thermal energy.
A system for controlling a multi-zone resistive heater, the system comprising:
- a first zone of the multi-zone resistive heater formed from a material having a negative temperature coefficient of resistivity (TCR) and configured to receive a first power to generate thermal energy;
- a second zone of the multi-zone resistive heater formed from the material having the negative TCR, separated from the first zone by a gap, and configured to receive a second power to generate the thermal energy;
- and
- a controller configured to control power distribution to the first zone and to the second zone separately.
A method for controlling a multi-zone resistive heater, the method comprising:
- transmitting, at a start of a first time period and until an end of the first time period, first power to a first zone of the multi-zone resistive heater, the first zone being formed from a material having a negative temperature coefficient of resistivity (TCR);
- and
- transmitting, at the start of a second time period and until an end of the second time period, second power to a second zone of the multi-zone resistive heater, the second zone being formed from the material having the negative TCR.
Dependencies are inferred from the claim text.