Signal generation circuit

摘要

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.

主权项

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.