| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an air conditioner reduced in cost and size. <P>SOLUTION: The air conditioner 1 performing heating operation through energization of a heating portion 28 including a plurality of PTC (Positive Temperature Coefficient) heaters 71, 72, 73 connected to a power supply section 80 includes: a heater output control section 77 controlling an output of the heating portion 28; and a plurality of pulse signal generating sections 74, 75, 76 provided corresponding to the respective PTC heaters 71, 72, 73 and each generating a predetermined pulse signal P1 when corresponding one of the plurality of PTC heaters 71, 72, 73 is supplied with the current. The connected state and non-connected state of the respective PTC heaters 71, 72, 73 are detected based on presence/absence of the pulse signal P1. Output control of the heating portion 28 by the heater output control section 77 can be varied according to the number of the PTC heaters 71, 72, 73 in the connected state. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
