| US 7,489,489 B2 | ||
| Load current sensing technique | ||
| Larry Kim, East Lansing, Mich. (US) | ||
| Assigned to JM Electronics Ltd. LLC, Wilmington, Del. (US) | ||
| Filed on Aug. 11, 2004, as Appl. No. 10/916,128. | ||
| Claims priority of provisional application 60/494247, filed on Aug. 11, 2003. | ||
| Prior Publication US 2005/0094342 A1, May 05, 2005 | ||
| Int. Cl. H02H 3/00 (2006.01); H02H 1/00 (2006.01) | ||
| U.S. Cl. 361—93.1 | 23 Claims |
| 1. A method of detecting fault conditions related to an output current from a power driver, comprising:
alternately activating and deactivating an output switching device of the power driver to provide the output current;
generating a voltage signal at a gate terminal of the output switching device during a portion of a time period when the output
switching device is activated, wherein the voltage signal represents the output current; and
monitoring the voltage signal for load fault conditions.
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