Device and method for supplying power to a vehicle, semi-conductor circuit device for use in the same and collective wiring device for a vehicle or an automobile
First Claim
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1. A semiconductor circuit apparatus, comprising:
- a power supply input terminal to which a wire connected to one of poles of a power supply is connected;
a communication terminal to which a communication line for information transmission is connected;
a communication IC for receiving a signal inputted from said communication terminal;
a power supply output terminal to which an electric load is connected; and
a switching circuit interposed between said power supply input terminal and said power supply output terminal for connecting or disconnecting a connection state between the two terminals, said switching circuit comprising at least two switching elements connected in series to an electric power line between the power supply input terminal and the power supply output terminal;
a first output interface switching element being positioned at a side of said power supply output terminal and controlling the power supplied to the electric load corresponding to control signals; and
a second interruption circuit switching element being positioned at a side of said power supply input terminal and cutting-off the electric power line by receiving an abnormal control signal.
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Abstract
A power supply line is wired in a loop from a battery power supply, and a power supply relay circuit is installed intermediately of the power supply line such that power is supplied from the power supply relay circuit to an electric load connected to a terminal unit of an intensive wiring line. By this arrangement, not only wires for control signals but also wires for power supply can be reduced. The terminal unit may serve also as the power supply relay circuit.
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Citations
6 Claims
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1. A semiconductor circuit apparatus, comprising:
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a power supply input terminal to which a wire connected to one of poles of a power supply is connected;
a communication terminal to which a communication line for information transmission is connected;
a communication IC for receiving a signal inputted from said communication terminal;
a power supply output terminal to which an electric load is connected; and
a switching circuit interposed between said power supply input terminal and said power supply output terminal for connecting or disconnecting a connection state between the two terminals, said switching circuit comprising at least two switching elements connected in series to an electric power line between the power supply input terminal and the power supply output terminal;
a first output interface switching element being positioned at a side of said power supply output terminal and controlling the power supplied to the electric load corresponding to control signals; and
a second interruption circuit switching element being positioned at a side of said power supply input terminal and cutting-off the electric power line by receiving an abnormal control signal.- View Dependent Claims (2, 3, 4, 5, 6)
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Specification