Often times, a sudden voltage spike will cause the device to enter a protective state. This may be due to:
A common mode choke can be used to try and remove the common mode transient. When doing this, both leads from the device can run through the same choke. However, the wires should wrap around the choke several times. A diagram of how this can be seen in this article.Alternatively, a low pass filter can be implemented to help reduce the common mode transient.
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