| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-frequency heating device for driving a magnetron, and to propose a method for separately fabricating step-up transformers with different step-up ratios and different number of turns with ease so as to correspond to different power supply voltage zones (e.g., 100 V, 120 V, 220-240 V) in these days of globalization.SOLUTION: A bobbin configuring a step-up transformer and around which a coil is wound is divided into one for a primary coil 13, one for a secondary coil 15, and one for a heater coil 20, and coils are wound around them, and thereby, individual production becomes possible. That is, such advantages that production flexibility is increased, and that, even if failures occur, it can cope with the failures by exchanging only a defective block can be obtained. |
