Current and Voltage Sensing Solutions for Motor Drive Control Using Photocouplers

Today’s trend for industrial motor drive devices (such as robot controllers, AC servos, NC servos and the like) is towards higher precision control and sensing in harsh environments. Additionally, system designers seek to standardize designs during the development of the equipment. Renesas RV1S9353A meets both of these objectives by using a high input resistance, high precision ΔΣ modulator. The RV1S9353A can be used for both high precision current sensing and for voltage monitoring enabling the common use of components.