| 摘要 |
PROBLEM TO BE SOLVED: To reduce the consumption current of a control portion and reduce the variation width of a delay time and intend a cost down, in an inverter apparatus wherein the power of its load can be controlled by an externally fed PWM signal having a variable duty factor. SOLUTION: In an inverter apparatus having an inverter circuit 2 for feeding a high-frequency power to a load 1, an inverter controlling circuit 3 for controlling the inverter circuit 2, and a PWM-signal transferring circuit 4 for receiving a PWM signal with a variable duty factor and transferring it to the inverter controlling circuit 3 wherein the output frequency given from the inverter controlling circuit 3 to the inverter circuit 2 is varied responding to the output fed from the PWM-signal transferring circuit 4 to control the power fed from the inverter circuit 2 to the load 1, a correcting means for correcting the transferring delay time of the PWM-signal transferring circuit 4 is added to the apparatus. |
