| 摘要 |
In a voltage dividing circuit, a first circuit where only a first switch is connected, a second circuit where a first resistor and a second switch are connected in series, a third circuit where a second resistor and a third switch are connected in series and a fourth circuit where a third resistor and a fourth switch are connected in series are connected in parallel. One end of the parallel circuit is connected to a limit resistor and the other end of the parallel circuit is connected to a ground point. One switch is provided between a connecting point in one circuit and a connecting point in another circuit, and each resistor of at least two circuits is connected in parallel by said one switch.
|
