Patent ID: 6965222

Claim:
A current controller for an inductive load, comprising: a pulse width modulation signal outputting circuit for outputting a pulse width modulation signal for setting a current caused to flow through the inductive load to a target current; a saw-tooth-wave signal generating circuit for generating a saw-tooth-wave signal having the same period as that of the pulse width modulation signal; a command value smoothing circuit for smoothing the pulse width modulation signal to generate a setting signal having the same period as that of the pulse width modulation signal; a detection value amplifying circuit for generating a detection signal having the same period as that of the pulse width modulation signal on the basis of the current caused to flow through the inductive load; a deviation integrating circuit for generating a deviation integration signal corresponding to deviation integration of the setting signal and the detection signal; and a current controlling circuit for controlling the current caused to flow through the inductive load on the basis of the saw-tooth-wave signal and the deviation integration signal.