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US 2013/0270874 A1Published application
Seat heater usable as antenna electrode
AssigneeIee International Electronics & Engineering S.A.
InventorLaurent Lamesch
Life of this patent
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AssigneeIee International Electronics & Engineering S.A.
InventorLaurent Lamesch
Estimating the term…
A seat heater, e.g. for a vehicle seat, comprises a heating element (10) for dissipating heat when a heating current flows across it and a temperature sensor (15) for providing a temperature signal indicative of the seat temperature. The seat heater comprises a common mode choke (16) with at least three windings. The heating element is connected in series between a first (16.1) and a second (16.2) thereof so as to be operatively connectable to a power source (12) via the common mode choke. The temperature sensor is connected to a third winding (16.3) of the at least three windings in such a way that the temperature signal may be received, e.g. by a temperature controller of the seat heater, via the third winding of the common mode choke.
A seat heater, comprising
An assembly of a capacitive seat occupancy sensor and a seat heater, said seat heater, comprising
Vehicle seat, comprising
A capacitive sensing network configured to apply an oscillating voltage to an antenna electrode and to derive a capacitive load of said antenna electrode from a current flowing into said antenna electrode in response to said application of said oscillating voltage, said capacitive sensing network comprising an interface for connecting said capacitive sensing network to a seat heater including a heating element for dissipating heat when a heating current is caused to flow across said heating element and a temperature sensor for providing a temperature signal, said interface being configured for operating said heating element as said antenna electrode, said capacitive sensing network being characterized in that said interface comprises a common mode choke including a first winding for connecting a first node of said heating element to a first terminal of a power supply, a second winding for connecting a second node of said heating element to a second terminal of said power supply and a third winding for connecting said temperature sensor to a temperature controller.
Dependencies are inferred from the claim text.