Method and system for diagnosing an arm-shot of a...

Details Method and system for diagnosing an arm-shot of a... Method and system for diagnosing an arm-shot of a...

2005-04-26

2005-04-26

Tso, Edward H. (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Phase controlled switching using electronic tube or a three...

Reexamination Certificate

active

06885173

ABSTRACT:
An arm-short diagnostic method for a bi-directional DC/DC converter that includes a buck switching device, a buck diode, a boost switching device, and a boost diode, is presented. The method includes detecting an output current of the bi-directional DC/DC converter, and determining whether the output current is detected in a positive direction. The method also includes maintaining supply of a turn-off gating signal to the boost switching device, and supplying a turn-on gating signal to the buck switching device, if the detected output current is in a positive direction. Finally, the method includes determining whether the output current of the bi-directional DC/DC converter increases in a positive direction, and determining that at least one of the boost switching device and the buck diode is in a short circuit state, if it is determined that the output current of the bi-directional DC/DC converter does not increase in the positive direction.

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