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sensor less (Method-ripple current counting) brushed DC motor

Gentlemen,

We tried your PCB, able to extract the ripple current, in our windowr regulator motor.

We put the Rsens between the motor and the Mosfet bridge.

In one direction we have a signal.

In the other direction we don't have signal.

Do you have an explanation of this behavior?

Normally we should have signal in both direction?

Can we meet a technician in order to support us?

Best regards

    F Breynaert Advanced manager at INTEVAPRODUCTS