| 摘要 |
<p>PURPOSE:To provide a voltage detecting circuit in which the insulation from the circuit on the receiving circuit is ensured and the size of circuit can be reduced while suppressing generation of heat. CONSTITUTION:The voltage detecting circuit comprises a unit 1 which emits light upon conduction for delivering a detection signal, a group 2 of a plurality of series LEDs 23 connected in series with the unit 1, and a resistor element 3 connected in series with the LED group 2.</p> |
