| 摘要 |
PURPOSE:To provide a small-sized, lightweight and economical DC voltage detecting circuit which has its primary circuit and secondary circuit insulated and is high in precision and fast in response. CONSTITUTION:This circuit is constituted of the resistance voltage dividing circuit consisting of resistances 11 and 12, the filter circuit 1 consisting of a resistance 13, a capacitor 14, and a constant-voltage diode 15 connected to the capacitor 14 in parallel, a free-ruing high-frequency oscillation circuit 2, an FET 4, a high-frequency transformer 3, and the output circuit 5 composed of the filter formed of resistances 17 and 19, and a capacitor 18, and a rectifying diode 16. |
