| 摘要 |
PURPOSE:To improve a feeling in use of a hot air heater when its operation is started by a method wherein the starting of the operation of the hot air heater is performed such that its tempeature is reached to a maximum setting temperature regardless of the desired temperature. CONSTITUTION:When the device is started, an output terminal 19 of an output circuit 11 of a microcomputer 6 becomes high, a transistor 21 is turned on through a resistor 20, a bidirectional thyristor 23 is turned on through a resistor 22 to energize a heater 2 and to heat the hot air heater. A temperature (t) of the hot air heater is detected at 12 and inputted to an input circuit 10 at the input terminal 17. The set temperature T in the hot air heater is inputted to the microcomputer 6 from a setting circuit 14. When the temperature in the hot air heater is reached to the maximum setting temperature, the output terminal 19 of the microcomputer becomes Low, the transistor 21 is turned OFF, an energization of the heater 2 is terminated, the temperature (t) of the hot air heater is decreased to the desired temperature T and subsequently it is controlled by the desired temperature T. With this arrangement, a comfortable feeling of the device in case of starting operation is improved. |
