| 摘要 |
PURPOSE:To perform a stable temperature control without generating a mulfunction to noise by compensating a set value for temperature control for a first thermistor to be a measured temperature of the first thermistor at a timing when a second thermistor reaches a set temperature. CONSTITUTION:As temperature control is started, an induction heating device 1 is controlled by a control means 11 to make a temperature rize to an initially set temperature value memorized in a memory of a microcomputer 3. A compensation means 10 is operated at a timing when a second thermistor 5 exceeds a predetermined temperature set by a reference resistance changing means 8, and an input of a first temperature measuring means 6 at that timing is set to be a control temperature. The means 11 controls the device 1 to keep the control temperature. A noise preventing means 9 prevents a mulfunction of a means 6 by high frequency noise. Change of a set temperature can thus be performed easily, thereby a stable temperature control is enabled. |
