Circuit for power supply of a ventilation fan and a battery by means of solar cells in a motor vehicle
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United States of America Patent
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Sep 18, 2001
Grant Date -
N/A
app pub date -
Feb 26, 1998
filing date -
Mar 1, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A circuit for power supply of a ventilation fan for cooling the interior of a motor vehicle and/or a motor vehicle battery by means of solar cells, with a manually actuated switch for switching the solar cell power supply to the ventilation fan or battery. An automatic control provides a fully automatic mode for automatic switching of the solar cell power supply depending on the temperature in the motor vehicle interior and/or the battery charging state which can be overridden by activating an actuating element of a manually activated switch in a semiautomatic mode. Furthermore, there is an optical display for indicating which of the automatic and semiautomatic mode is activated.
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