Low side driver with short to battery protection

Details Low side driver with short to battery protection Low side driver with short to battery protection

2011-07-12

2011-07-12

Patel, Dharti H (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

C361S091100, C361S091500, C361S093900

Reexamination Certificate

active

07978453

ABSTRACT:
A driver circuit includes a driver module having a first transistor for receiving a driver voltage signal. In response to the driver voltage signal, the first transistor conducts current through an electronic device. A protection module includes a second transistor in electrical communication with the first transistor for receiving a logic voltage signal and for inhibiting current flow through the first transistor in response to receiving the logic voltage signal. The protection module further includes a digital logic gate having at least one input in electrical communication with the first transistor for detecting a short-circuit voltage signal. At least one output of the digital logic gate is in electrical communication with the second transistor for outputting the logic voltage signal in response to receiving the short-circuit voltage signal.

REFERENCES:
patent: 4771190 (1988-09-01), Umeki
patent: 6008972 (1999-12-01), Pietrobon
patent: 6580627 (2003-06-01), Toshio
patent: 7295412 (2007-11-01), Sasaki et al.

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