| 摘要 |
In an AC power regulator for variably outputting power supplied from an input AC power supply with respect to a load, when an inputted output set value is equal to or more than a predetermined operation switch threshold value, on the basis of the output set value, desired power is outputted to the load by a first control method, and when the output set value is less than the predetermined operation switch threshold value, on the basis of the operation switch threshold value, a control signal generated by the first control method is turned on/off in a cycle unit of the input AC power supply, and the desired power is outputted to the load. As a result, with respect to such a load that an applied voltage is preferably not lower than a predetermined effective value (or applied power is preferably not lower than a predetermined value) such as a halogen lamp heater, an effective value of an output voltage is prevented from being lower than a predetermined value (or output power is prevented from being lower than a predetermined value). |
