Patent ID: 7671305
Filing Date: 2010-03-02
Classification: F23Q

Abstract:
1. A control system to control energizing one or more electrical resistance igniters from an electrical power source, the control system comprising: a control device configured and arranged to control application of a voltage to the one or more electrical resistance igniters; and a voltage measuring device, the voltage measuring device being operably coupled to the electrical power source so as to measure an output voltage of the power source and being operably coupled to the control device so as to provide an output of the measured output voltage to the control device; wherein the voltage being applied initially is a first voltage, so the first voltage is applied for a full-on time period and thereafter the average voltage being applied is a second voltage lower than the first voltage, and the first voltage is applied at a level whereby voltage developed across the one or more igniters is more than the nominal operating voltage of the one or more igniters, and the second voltage maintains the one or more igniters at or above ignition temperature, wherein the control device is configured and arranged to determine the full-on time period based on the measured output voltage.