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US 6,204,643 B1Granted
Controller for car AC generator
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsTatsuki Kouwa, Keiichi Komurasaki, Hirofumi Watanabe
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Abstract
A controller for a car AC generator which eliminates the need for a drive signal supplied by a key switch and stabilizes the power generation of an AC generator at the start of an internal combustion engine. The voltage regulator of the controller comprises trigger means for supplying a field current from a battery to a field coil by detecting a drop in battery voltage.
Claims9
A controller for a car AC generator comprising:
- an AC generator driven by the internal combustion engine of a vehicle;
- a rectifier for rectifying the AC output of the AC generator;
- a battery which is charged with the rectified output of the rectifier and supplies power to the field coil of the AC generator at the start of the internal combustion engine;
- and
- a voltage regulator for adjusting the output voltage of the AC generator to a predetermined value by controlling a field current to be supplied to the field coil from the battery intermittently, wherein
- the voltage regulator comprises trigger means for supplying a field current from the battery to the field coil when it detects a drop in battery voltage.
3 more elements
Dependencies are inferred from the claim text.