Over-voltage protection apparatus and vehicular direction indica

Details Over-voltage protection apparatus and vehicular direction indica Over-voltage protection apparatus and vehicular direction indica

1998-07-15

2000-07-11

Leja, Ronald W.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

307 108, H02H 320

Patent

active

060882077

ABSTRACT:
An over-voltage protection apparatus includes a power feed line. A load has a given low impedance. A current supplying device operates for supplying a current to the load via the power feed line. A load drive device operates for controlling the supply of the current to the load by the current supplying device. An over-voltage detecting device operates for detecting an over-voltage at the power feed line. A discharge command device operates for, when the over-voltage at the power feed line is detected by the over-voltage detecting device, controlling the load drive device to enable a discharge current to flow from the power feed line into the load and thereby to remove the over-voltage from the power feed line through discharge. A current detecting device operates for detecting the discharge current. A discharge continuing device operates for continuing the discharge and the flow of the discharge current from the power feed line in cases where the discharge current detected by the current detecting device exceeds a predetermined reference level.

REFERENCES:
patent: 5130883 (1992-07-01), Edwards
patent: 5444595 (1995-08-01), Ishikawa et al.
patent: 5838526 (1998-11-01), Ishikawa et al.

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