Device for compensation of voltage drop at light sources of a vehicle with electrical auxiliary charging device
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United States of America Patent
Stats
-
Feb 20, 2001
Grant Date -
N/A
app pub date -
Jul 28, 1999
filing date -
Jul 28, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for compensation of voltage drop at light sources of a vehicle has light sources having a resistance R.sub.0 and connected to a vehicle battery. An auxiliary charging device with electric motor is provided. The electric motor has an on/off switch and is connected to the vehicle battery. The electric motor is connected parallel to the light sources. A resistor is serially connected upstream of the light sources and is selected, based on the resistance R.sub.0, such that a nominal current I flowing through the light sources causes a voltage drop .DELTA.E=I.times.R in the resistor that matches a voltage drop occurring when the electric motor is switched on. A first switch is connected parallel to the resistor for short-circuiting the resistor when the electric motor is switched on by the on/off switch.
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