Generation control appparatus for vehicle generators
AssigneeNippondenso Co., Ltd.
InventorsKatsutaro Iwaki, Keiichiro Banzai, Shigeru Tanaka, Hajime Matsuhashi
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Abstract
A generation control apparatus for a vehicle generator detects the output voltage of an excitation current supplying rectifier circuit of the generator. When the output voltage is lower than a predetermined value, a switching element is turned on and a current for operating an indicator lamp is caused to flow through a resistor connected to the switching element, thus detecting a break in the generator circuit.
Claims3
A generation control apparatus for a vehicle generator having a first rectifier circuit for supplying power to loads including a battery, and a second rectifier circuit for supplying an excitation current to an excitation coil, comprising:
- a voltage regulator circuit connected to said excitation coil and said battery and operable in response to the closing of a key switch to control the excitation current to said excitation coil in accordance with an output voltage of said battery and thereby to control an output voltage of said generator;
- indicator means connected to an output terminal of said second rectifier circuit;
- and
- an indicator drive circuit connected to the output terminal of said second rectifier circuit, said drive circuit including a detecting circuit for detecting a voltage at said output terminal, a resistor connected to said output terminal, and a switching circuit connected to said detecting circuit and said resistor and operable when the voltage at said output terminal is lower than a predetermined value so as to cause an energization current for said indicator means to flow through said resistor.
Dependencies are inferred from the claim text.