Control device for AC generator
First Claim
1. A control device for an AC generator having an armature coil and a field coil, said control device comprising:
- a rectifier for rectifying an AC output of said AC generator, which is driven by an engine, to excite said field coil;
a storage battery adapted to be charged by the rectified output of said AC generator rectified by said rectifier for supplying power to said field coil when said engine is started;
a switching element for switching over a connecting condition of said storage battery so that said storage battery is connected through said rectifier to said field coil to supply power to said field coil when said engine is started, said switching element being connected to an AC output of said AC generator for supplying said AC output voltage of said AC generator as a drive voltage to said second switching element;
an output-voltage regulating circuit for detecting an AC output voltage of the AC generator and for intermittently controlling a field current to said field coil to regulate the AC output voltage of said AC generator to a predetermined value;
an indicating lamp connected between said switching element and said storage battery for indicating a state of electricity generation of said AC generator; and
an indicating-lamp control circuit for turning on and off said indicating lamp based on said state of electricity generation of said AC generator.
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Accused Products
Abstract
A control device for an AC generator having an armature coil and a field coil includes a rectifier for rectifying an AC output of the AC generator, which is driven by an engine, to excite the field coil. A storage battery is adapted to be charged by the rectified output of the AC generator rectified by the rectifier for supplying power to the field coil when the engine is started. A switching element switches over a connecting condition of the storage battery in such a manner that the storage battery is connected through the rectifier to the field coil to supply power to the field coil when the engine is started, the switching element being connected to an AC output of the AC generator for supplying the AC output voltage of the AC generator as a drive voltage to the second switching element. An output-voltage regulating circuit detects an AC output voltage of the AC generator and for intermittently controlling a field current to the field coil to regulate the AC output voltage of the AC generator to a predetermined value. An indicating lamp is connected between the switching element and the storage battery for indicating a state of electricity generation of the AC generator. An indicating-lamp control circuit turns on and off the indicating lamp based on the state of electricity generation of the AC generator.
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Citations
3 Claims
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1. A control device for an AC generator having an armature coil and a field coil, said control device comprising:
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a rectifier for rectifying an AC output of said AC generator, which is driven by an engine, to excite said field coil; a storage battery adapted to be charged by the rectified output of said AC generator rectified by said rectifier for supplying power to said field coil when said engine is started; a switching element for switching over a connecting condition of said storage battery so that said storage battery is connected through said rectifier to said field coil to supply power to said field coil when said engine is started, said switching element being connected to an AC output of said AC generator for supplying said AC output voltage of said AC generator as a drive voltage to said second switching element; an output-voltage regulating circuit for detecting an AC output voltage of the AC generator and for intermittently controlling a field current to said field coil to regulate the AC output voltage of said AC generator to a predetermined value; an indicating lamp connected between said switching element and said storage battery for indicating a state of electricity generation of said AC generator; and an indicating-lamp control circuit for turning on and off said indicating lamp based on said state of electricity generation of said AC generator. - View Dependent Claims (2, 3)
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Specification