Power window circuit board overcurrent protection

Details Power window circuit board overcurrent protection Power window circuit board overcurrent protection

1995-04-28

1997-03-18

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Impedance insertion

361 27, 307 101, 318434, H02H 900

Patent

active

056128479

ABSTRACT:
A vehicle door (22) has a window (24) capable of being opened and closed. A master power window switch assembly (26) is mountable in an arm rest (28) of the door (22) near a driver of the vehicle. A polyswitch resettable fuse (56) is connected to a printed circuit board (50) of a master power window switch assembly (26) through a jumper terminal (58). An electrically conductive trace (52) is electrically connected to the jumper terminal (58). The polyswitch resettable fuse (56) may be used to limit current in the conductive trace (52) on the circuit board (50). Locating the polyswitch resettable fuse (56) between the power source (40) and the circuit board (50) permits design of the conductive traces (52), (53) and the circuit board electrical components for normal operating currents instead of significantly larger foreseeable motor stall current levels.

REFERENCES:
patent: 4663537 (1987-05-01), Goldner et al.
patent: 4725765 (1988-02-01), Miller
patent: 4922170 (1990-05-01), Kawasaki et al.
patent: 4983897 (1991-01-01), Tennant
patent: 5229695 (1993-07-01), Tsuda et al.

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