Power window driving apparatus

Details Power window driving apparatus Power window driving apparatus

2005-10-11

2005-10-11

Masih, Karen (Department: 2837)

Electricity: motive power systems

Plural diverse motor controls

Motor-reversing

C318S445000, C318S466000, C318S468000

Reexamination Certificate

active

06954043

ABSTRACT:
A power window driving apparatus includes a reference current generator which generates a reference current corresponding to a motor current. The power window driving apparatus further includes a comparator which compares the reference voltage with a comparison signal; a stopping or reversing circuit which stops or reverses the driving motor based on a comparison result by the comparator; a first timer and a second timer which measure two predetermined times from the start of activation of the driving motor; a voltage difference holder which hold a difference between the comparison signal and the reference voltage so as to be equal to or greater than a first predetermined value while the first timer is in operation; and a voltage difference reducer which reduces monotonously the difference until the difference becomes a second predetermined value while the second timer is in operation after the first timer is completed the measuring of time.

REFERENCES:
patent: 2002/0043948 (2002-04-01), Ogasawara
patent: 2002/0158596 (2002-10-01), Pehrson et al.
patent: 10-25964 (1998-01-01), None
patent: 2001-20605 (2001-01-01), None
patent: 2002-96632 (2002-04-01), None
patent: 2002-295129 (2002-10-01), None

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