| 摘要 |
<p>PURPOSE: To control plural duty solenoid valves which operate differently with the minimum program capacity of a computer by providing a signal composing means which composes a driving signal on the basis of a duty signal, an overexcitation signal, and a holding signal. CONSTITUTION: A duty signal is outputted from an output terminal OUT2 of the microcomputer 100 and an overexciation signal is outputted from an output terminal OUT3. Further, a PWM signal is outputted from an output terminal OUT1. Those output signals are processed by a duty solenoid driving circuit 200 and supplied to a solenoid coil 300. Further, a duty signal and an overexcitation signal corresponding to another duty solenoid valve are outputted from output terminals OUT4 and OUT5 respectively and processed by a duty solenoid driving circuit 210 to control a solenoid coil 310.</p> |
