Operating device for consumers connected to the electric system of mobile units
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United States of America Patent
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-
Apr 7, 1992
Grant Date -
N/A
app pub date -
Jul 5, 1989
filing date -
Jul 14, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an operating device for high-current loads, such as fan motors, or the like, connected to the electric system of mobile units, in particular motor vehicles, it is proposed each respective electric motor is connected to the electric system via an electronic control circuit controlling the pulse width of the pulse supply voltage supplied to the motor for the purpose of adjusting the motor to different power requirements, with nominal-value adjustment. An interference elimination circuit including a series coil and at least one capacitor of high capacitance is arranged between the electronic control system and the electric system of the mobile unit. The series coil is equipped with an iron-powder core and designed in such a manner that no saturation is obtained even under maximum current conditions so that a sufficiently high inductivity reserve remains available for pulse damping.
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