CURRENT DETECTION APPARATUS AND CONTROL SYSTEM USING THE SAME

摘要

PROBLEM TO BE SOLVED: To achieve a high-precision current detection means with a one-chip LSI.SOLUTION: A power supply means for supplying a prescribed voltage between a power supply of a voltage amplification means and a virtual ground potential, wherein an end of a current detection means is connected to an analog power supply or an analog virtual ground potential of a voltage amplification means and an analog/digital conversion means. A high-precision current detection is allowed, and hence high-precision current control is allowed. A smoother electric power actuator control and comfortable and sophisticated electronic control are allowed.