MOTOR DRIVING CIRCUIT

PROBLEM TO BE SOLVED: To provide a motor driving circuit which enables the elimination of the influence of bounce occurring in comparison output of a voltage comparator 9 without needing many circuit parts. SOLUTION: This motor driving circuit is equipped with window opening/closing switches 1 and 2...

Full description

Saved in:
Bibliographic Details
Main Author HIWATARI MINORU
Format Patent
LanguageEnglish
Published 22.01.2004
Edition7
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:PROBLEM TO BE SOLVED: To provide a motor driving circuit which enables the elimination of the influence of bounce occurring in comparison output of a voltage comparator 9 without needing many circuit parts. SOLUTION: This motor driving circuit is equipped with window opening/closing switches 1 and 2, an autoswitch 3, a motor 4 for opening and closing of a window, a relay 7 for operation changeover for switching the motor 4 into the drive state or the nondrive state, a charge circuit 5 for charging a capacitive element 5(1) when the window opening/closing switches 1 and 2 are operated, and a voltage comparator 8 which compares the charge voltage of the charge circuit 5 with the reference voltage, and this stops the drive of the motor by switching the contact of the relay 7 onto the drive stop side by the comparison output generated from the voltage comparator 8 when the charge voltage of the charge circuit 5 reaches the reference voltage at drive operation of the motor 4, and also discharges the charge voltage of the charge circuit 5 through the drive coil of the relay 7, thereby eliminating the influence of the bounce included in the charge output. COPYRIGHT: (C)2004,JPO
Bibliography:Application Number: JP20020177317