| 摘要 |
<p>A current detector circuit capable of detecting a current flowing through a switch element with a high accuracy, a less power loss and a high voltage and in an insulating manner. In the current detector circuit, a charging circuit is provided which charges a capacitor with a current proportional to a voltage occurring across a choke coil, and a discharging circuit is provided which causes the voltage across the capacitor to be zero volts when the current flowing through the switch element is zero, whereby the voltage across the capacitor can be detected as a value proportional to the current flowing through the switch element.</p> |
