Silicon carbide ceramic heating element for igniting combustible mixture has negative temperature characteristic in circuit with segment whose resistance saturates quasi-asymptotically

摘要

The arrangement has a silicon carbide ceramic heating element (1a-6) with a negative temperature characteristic in a circuit with at least one segment whose resistance passes into saturation at least quasi-asymptotically at the current required for a desired heat generation. The resistance of the segment varies by not more than 10 per cant if the current increases by 20%. Independent claims are also included for the following: a method of manufacturing a silicon carbide ceramic heating element.