| 摘要 |
<p>PROBLEM TO BE SOLVED: To switch a measurement range, without using a change-over switch and reduce consumption power in relation to a current measuring apparatus having a plurality of measurement ranges. SOLUTION: A large current measurement resistor R1, connected to a large current measuring terminal T1 of a measuring device A and a small current measurement resistor R2 connected to a small current measuring terminal T2 are connected in series. A diode D1 is connected in parallel with the small current measurement resistor R2. A current flowing into the small current measurement resistor R1, when a large current is measured, is diverted to the diode D1.</p> |
