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US 2021/0229793 A1Published application
Aircraft window heating system with regulated dc voltage
AssigneeEmbraer S.A.
InventorsCleber Augusto BORGES, Gustavo Amaral FERREIRA DE MELO, Pedro Henrique SILVA MIRANDA, Nelson Whitaker FILHO
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Abstract
The example non-limiting technology herein provides an alternative way to control window heater temperature by delivering to the heater a DC voltage with variable level.
Claims3
A window heat controller system comprising:
- an Electrical System supplying 28 VDC in one or more independent buses;
- a controller capable to receive 28 VDC and to output a DC voltage regulated between 0 and 28 VDC for two independent heating elements, output which is regulated according to the heating element's temperature, including over-current protection and over-heat monitor on heating element through its temperature sensing element;
- and,
- power contactors for controlled power supply shut-off made by said controller;
- and,
- an electrical resistance heating element connected to receive controlled power from said controller with an embedded temperature sensing means for developing a DC signal proportional to the temperature of said heating element.
3 more elements
Dependencies are inferred from the claim text.