| 摘要 |
<P>PROBLEM TO BE SOLVED: To quickly energize plural PTC elements while restraining costs. <P>SOLUTION: A heater control device comprises: a current calculation part 20 for calculating a third current value according to a first current value flowing through a first PTC element of a first PTC heater currently under an energization state and a second current value estimated to flow through a second PTC element of a new second PTC heater to be in an energization state next; and a switch control part 21 for holding the second PTC element of the second PTC heater under a non-energization state and keeping the second PTC element of the second PTC heater under an energization state at less than a predetermined maximum allowable current value, until the third current value calculated by the current calculation part 20 is determined as less than a predetermined maximum allowable current value. <P>COPYRIGHT: (C)2013,JPO&INPIT |
