Signal generation circuit
First Claim
1. A signal generation circuit, configured to generate a pilot signal for communication between a vehicle equipped with a battery device, and a charging cable,wherein the signal generation circuit comprises:
- a circuit comprising an operational amplifier configured to output the pilot signal;
a first input unit configured to supply a non-inverted input terminal of the operational amplifier with either a first signal or a second signal that is different from the first signal;
a second input unit configured to supply an inverted input terminal of the operational amplifier with either a first voltage or a second voltage that is different from the first voltage; and
a control unit configured to control each output of the first input unit and the second input unit, whereineach of the first signal and the first voltage is a zero voltage, andthe circuit comprising the operational amplifier is configured so that the operational amplifier outputs a zero voltage if the first signal is supplied to the non-inverted input terminal of the operational amplifier and the first voltage is supplied to the inverted input terminal of the operational amplifier.
3 Assignments
0 Petitions
Accused Products
Abstract
A signal generation circuit (5) generates a pilot signal for communication between a vehicle equipped with a battery device, and a charging cable. The circuit (5) includes a circuit (5A) includes an operational amplifier (OP1) for outputting the pilot signal, a first input unit (501) for supplying a non-inverted input terminal of the amplifier (OP1) with a first or second signal, a second input unit (51) for supplying an inverted input terminal of the amplifier (OP1) with a first or second voltage, and a control unit (500) for controlling each output of the first and second input units (501, 51). Each of the first signal and the first voltage is a zero voltage. The circuit (5A) is configured so that the amplifier (OP1) outputs a zero voltage if the first signal is supplied to the non-inverted input terminal and the first voltage is supplied to the inverted input terminal.
6 Citations
7 Claims
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1. A signal generation circuit, configured to generate a pilot signal for communication between a vehicle equipped with a battery device, and a charging cable,
wherein the signal generation circuit comprises: -
a circuit comprising an operational amplifier configured to output the pilot signal; a first input unit configured to supply a non-inverted input terminal of the operational amplifier with either a first signal or a second signal that is different from the first signal; a second input unit configured to supply an inverted input terminal of the operational amplifier with either a first voltage or a second voltage that is different from the first voltage; and a control unit configured to control each output of the first input unit and the second input unit, wherein each of the first signal and the first voltage is a zero voltage, and the circuit comprising the operational amplifier is configured so that the operational amplifier outputs a zero voltage if the first signal is supplied to the non-inverted input terminal of the operational amplifier and the first voltage is supplied to the inverted input terminal of the operational amplifier. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification