Abnormal Waveforms

Example 1
PROBABLE CAUSE: Open circuit or short circuit in diode

Fig 1: Abnormal Waveform - Open Circuit Or Short Circuit In Diode
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Example 2
PROBABLE CAUSE: Open circuit in stator coil (In stator coil)

Fig 2: Abnormal Waveform - Open Circuit In Stator Coil
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Example 3
PROBABLE CAUSE: Open circuit in stator coil (Open circuit between stator coil and diode)

Fig 3: Abnormal Waveform - Open Circuit Between Stator Coil And Diode
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Example 4
PROBABLE CAUSE: Short circuit in stator coil

Fig 4: Abnormal Waveform - Short Circuit In Stator Coil
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.