| 摘要 |
PURPOSE:To make it possible to correct the operation frequency by providing load detecting means, frequency memory means, frequency discriminating means, output means, drive means and further frequency correcting means increasing or decreasing the operation frequency to a corrected value. CONSTITUTION:An air conditioning load is detected by a load detector 1, and a signal is inputted to an LSI2. In a case where a seventh memory part is selected by frequency discriminating means, the operation frequency of 70Hz stored in the 7th memory part of frequency memory means is read out, and the 7th memory part corresponds to an input port 11, and hence carries out an action to read out an input voltage VH of the input port 11 because the 7th memory part corresponds to the input port 11. The input voltage VH to the input port 11 is controlled by a frequency correction circuit 5. The LSI2 A/D converts the input voltage VH to the input port 11, and outputs O-M bits. The corrected value corresponding to each bit is stored in frequency storing means of the LSI2, and corrected values corresponding to bits are determined. Thus, a correction is added to the operation frequency and the corrected operation frequency is outputted. |
