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motor phase current sensing with ISO130

168
Prodigy 90 points
Other Parts Discussed in Thread: OPA604, AMC1200

dear ti engineer:

plz see the attached picture. one question is as follow:

when the phase current is 20ARMS sinusoidal 50Hz current, how about the output of the OPA604? is it a sinusoidal waveform?

thank u in advance.

  • 0
    Guru 21975 points

    466576266,

    Yes, this circuit provided an AC sinusoid output, assuming the measured current was a sinusoid.

    The ISO130, however, is an obsolete component, no longer available. For new designs, consider the AMC1200. This product is supported on the "motor control" E2E forum under the "applications" heading.

    Regards, Bruce.