| 摘要 |
PURPOSE: To avoid overshoots and an undershoots when a power supply is switched to an inductive load by a device, for distributing a power from a single inverter source to a plurality of inductive loads. CONSTITUTION: In a 1st switching cycle, an initial delay time is predetermined, the maximum values of overshoots/undershoots of respective loads 100 are measured by a measurement circuit 24, delay time adjustment values for the respective loads are determined in order to correct the overshoots/undershoots, and the adjustment values are stored in a memory 28. In a 2nd switching cycle, at the time of or prior to, the switching to an inverter, the adjustment value for the required load is drawn out of the memory 28. With this process, a new delay time value is set, a drive pulse is supplied from a delay time generator 20 to the inverter 16, a power is supplied to the required load 10 through a load switching circuit 22 and the overshoot/undershoot can be avoided. |
