| 摘要 |
<p>PURPOSE:To shorten time required from the change of an ON/OFF signal up to the sending of a power supply control signal based upon a serial data bus system to a power supply by deciding whether a current sequence is an ON sequence or an OFF sequence at first. CONSTITUTION:When plural ON/OFF signals 151 to 15n outputted from a master control device 11 are inputted to a power supply control device 12, the circuit 12 inputs the data of current plural ON/OFF signals, i.e. the current data, to a register in its microprocessor 12a and also inputs the data of the preceding plural ON/OFF signals, i.e. the succeeding data, similarly to the register in the microprocessor 12a. Thus, whether the current sequence is the ON sequence or the OFF sequence is decided from the input data of the plural ON/OFF signals 151 to 15n and the stored data of the preceding input. Thereby, respective changes of plural ON/OFF signals can be detected in the descending priority order in each sequence. Thus, the time required from the change of the ON/OFF signal up to it serial data bus system transmission to the power supply can be shortened.</p> |
