| 摘要 |
A controller uses a voltage signal as an input signal. A first resistor (21) is provided in a positive electrode-side path (51), and a second resistor (22) is provided in a path (53) laid between the positive electrode-side path (51) and a negative electrode-side path (52). The first resistor (21) and the second resistor (22) operate as voltage dividing resistors, and the voltage of the voltage signal is reduced to half and inputted to a microcomputer (10). In the microcomputer (10), read maps each corresponding to the ratio between the voltage of an input voltage pattern and the voltage of the input voltage pattern after being reduced by the first resistor (21) and the second resistor (22) are previously stored. A selection from the maps is made by a first changeover switch (13) and a second changeover switch (14) of the microcomputer (10). |
