| 摘要 |
<p>The cooking hob includes spaced electrically conductive hob rails HR1-HR3 protruding from the outer support surface. Driver 530 with an output coupled to the inductive coils 430 is coupled to a controller and associated appliance decoder modules 535. Each appliance decoder 535 has decoder outputs and inputs selectively coupled to the electrically conductive hob rails. The decoder identifies a cooking appliance seated on the hob rails by use of a resistance circuit R1 carried on mount 120 of the cooking appliance 100 which mount supports electrically isolated conductive base rails BR1-BR3. BR1 and BR2 are connected by the resistance R1 whilst BR2 and BR3 are connected by a thermistor circuit TC which thermally engages the base 115 of the vessel. The decoder module determines the appliance type by outputting a reference voltage via the rails to the resistance circuit and receiving the attenuated voltage and comparing it with stored tables in the memory module 515. The decoder has three inputs/outputs, each output being from a tri-state buffer which allows the system to be non-orientation sensitive. An attenuated signal from the thermistor circuit is similarly acquired and compared to ascertain vessel temperature.</p> |
