H - Electricity – 02 – H
Patent
H - Electricity
02
H
H02H 7/122 (2006.01) H02H 9/04 (2006.01) H02M 1/00 (2006.01)
Patent
CA 2342270
A fault detection circuit and method for monitoring a power converter system to identify faults. The detection circuit includes two comparator circuits each having one input connected to the do bus of the power converter system and responsive to the voltage spikes that occur as a result of faults. The other inputs of the comparator circuits are respectively connected to first and second sources of reference voltages having preset limits. The outputs of the two comparator circuits are combined on an output lead, and a fault signal will be produced on the output lead when the voltage spike on the dc bus exceeds the limits.
Chen Chingchi
Sankaran Venkateswara
Ford Global Technologies Inc.
Sim & Mcburney
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