| 摘要 |
PROBLEM TO BE SOLVED: To provide a load driving control device that can keep the detection frequency of actual current per period to be constant even when the period of a duty signal varies.SOLUTION: A calculation part 24 calculates a next period of a PWM signal as a duty signal for performing ON/OFF-operation on a linear solenoid 100 of a hydraulic control valve on the basis of the oil temperature of hydraulic oil in the hydraulic control valve. The calculation part 24 samples actual current flowing in the linear solenoid 100 and calculates an A/D conversion interval for performing A/D conversion in synchronism with the calculation of the next PWM period so that the detection frequency of the actual current per period of the PWM signal is kept constant even when the PWM period varies. |
